forked from KolibriOS/kolibrios
3872 lines
123 KiB
C
3872 lines
123 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* multiple format streaming server based on the FFmpeg libraries
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*/
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#include "config.h"
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#if !HAVE_CLOSESOCKET
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#define closesocket close
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#endif
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "libavformat/avformat.h"
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/* FIXME: those are internal headers, ffserver _really_ shouldn't use them */
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#include "libavformat/ffm.h"
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#include "libavformat/network.h"
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#include "libavformat/os_support.h"
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#include "libavformat/rtpdec.h"
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#include "libavformat/rtpproto.h"
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#include "libavformat/rtsp.h"
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#include "libavformat/rtspcodes.h"
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#include "libavformat/avio_internal.h"
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#include "libavformat/internal.h"
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#include "libavformat/url.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/lfg.h"
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#include "libavutil/dict.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/random_seed.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/opt.h"
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#include "libavutil/time.h"
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#include <stdarg.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#if HAVE_POLL_H
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#include <poll.h>
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#endif
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#include <errno.h>
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#include <time.h>
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#include <sys/wait.h>
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#include <signal.h>
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#include "cmdutils.h"
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#include "ffserver_config.h"
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const char program_name[] = "ffserver";
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const int program_birth_year = 2000;
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static const OptionDef options[];
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enum HTTPState {
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HTTPSTATE_WAIT_REQUEST,
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HTTPSTATE_SEND_HEADER,
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HTTPSTATE_SEND_DATA_HEADER,
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HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
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HTTPSTATE_SEND_DATA_TRAILER,
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HTTPSTATE_RECEIVE_DATA,
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HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
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HTTPSTATE_READY,
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RTSPSTATE_WAIT_REQUEST,
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RTSPSTATE_SEND_REPLY,
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RTSPSTATE_SEND_PACKET,
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};
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static const char * const http_state[] = {
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"HTTP_WAIT_REQUEST",
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"HTTP_SEND_HEADER",
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"SEND_DATA_HEADER",
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"SEND_DATA",
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"SEND_DATA_TRAILER",
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"RECEIVE_DATA",
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"WAIT_FEED",
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"READY",
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"RTSP_WAIT_REQUEST",
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"RTSP_SEND_REPLY",
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"RTSP_SEND_PACKET",
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};
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#define IOBUFFER_INIT_SIZE 8192
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/* timeouts are in ms */
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#define HTTP_REQUEST_TIMEOUT (15 * 1000)
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#define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
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#define SYNC_TIMEOUT (10 * 1000)
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typedef struct RTSPActionServerSetup {
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uint32_t ipaddr;
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char transport_option[512];
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} RTSPActionServerSetup;
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typedef struct {
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int64_t count1, count2;
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int64_t time1, time2;
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} DataRateData;
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/* context associated with one connection */
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typedef struct HTTPContext {
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enum HTTPState state;
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int fd; /* socket file descriptor */
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struct sockaddr_in from_addr; /* origin */
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struct pollfd *poll_entry; /* used when polling */
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int64_t timeout;
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uint8_t *buffer_ptr, *buffer_end;
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int http_error;
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int post;
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int chunked_encoding;
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int chunk_size; /* 0 if it needs to be read */
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struct HTTPContext *next;
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int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
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int64_t data_count;
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/* feed input */
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int feed_fd;
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/* input format handling */
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AVFormatContext *fmt_in;
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int64_t start_time; /* In milliseconds - this wraps fairly often */
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int64_t first_pts; /* initial pts value */
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int64_t cur_pts; /* current pts value from the stream in us */
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int64_t cur_frame_duration; /* duration of the current frame in us */
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int cur_frame_bytes; /* output frame size, needed to compute
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the time at which we send each
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packet */
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int pts_stream_index; /* stream we choose as clock reference */
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int64_t cur_clock; /* current clock reference value in us */
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/* output format handling */
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struct FFServerStream *stream;
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/* -1 is invalid stream */
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int feed_streams[FFSERVER_MAX_STREAMS]; /* index of streams in the feed */
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int switch_feed_streams[FFSERVER_MAX_STREAMS]; /* index of streams in the feed */
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int switch_pending;
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AVFormatContext fmt_ctx; /* instance of FFServerStream for one user */
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int last_packet_sent; /* true if last data packet was sent */
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int suppress_log;
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DataRateData datarate;
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int wmp_client_id;
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char protocol[16];
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char method[16];
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char url[128];
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int buffer_size;
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uint8_t *buffer;
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int is_packetized; /* if true, the stream is packetized */
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int packet_stream_index; /* current stream for output in state machine */
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/* RTSP state specific */
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uint8_t *pb_buffer; /* XXX: use that in all the code */
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AVIOContext *pb;
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int seq; /* RTSP sequence number */
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/* RTP state specific */
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enum RTSPLowerTransport rtp_protocol;
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char session_id[32]; /* session id */
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AVFormatContext *rtp_ctx[FFSERVER_MAX_STREAMS];
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/* RTP/UDP specific */
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URLContext *rtp_handles[FFSERVER_MAX_STREAMS];
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/* RTP/TCP specific */
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struct HTTPContext *rtsp_c;
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uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
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} HTTPContext;
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typedef struct FeedData {
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long long data_count;
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float avg_frame_size; /* frame size averaged over last frames with exponential mean */
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} FeedData;
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static HTTPContext *first_http_ctx;
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static FFServerConfig config = {
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.nb_max_http_connections = 2000,
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.nb_max_connections = 5,
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.max_bandwidth = 1000,
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.use_defaults = 1,
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};
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static void new_connection(int server_fd, int is_rtsp);
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static void close_connection(HTTPContext *c);
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/* HTTP handling */
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static int handle_connection(HTTPContext *c);
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static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream);
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static void compute_status(HTTPContext *c);
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static int open_input_stream(HTTPContext *c, const char *info);
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static int http_parse_request(HTTPContext *c);
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static int http_send_data(HTTPContext *c);
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static int http_start_receive_data(HTTPContext *c);
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static int http_receive_data(HTTPContext *c);
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/* RTSP handling */
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static int rtsp_parse_request(HTTPContext *c);
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static void rtsp_cmd_describe(HTTPContext *c, const char *url);
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static void rtsp_cmd_options(HTTPContext *c, const char *url);
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static void rtsp_cmd_setup(HTTPContext *c, const char *url,
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RTSPMessageHeader *h);
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static void rtsp_cmd_play(HTTPContext *c, const char *url,
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RTSPMessageHeader *h);
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static void rtsp_cmd_interrupt(HTTPContext *c, const char *url,
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RTSPMessageHeader *h, int pause_only);
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/* SDP handling */
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static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer,
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struct in_addr my_ip);
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/* RTP handling */
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static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
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FFServerStream *stream,
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const char *session_id,
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enum RTSPLowerTransport rtp_protocol);
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static int rtp_new_av_stream(HTTPContext *c,
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int stream_index, struct sockaddr_in *dest_addr,
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HTTPContext *rtsp_c);
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static const char *my_program_name;
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static int no_launch;
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static int need_to_start_children;
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/* maximum number of simultaneous HTTP connections */
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static unsigned int nb_connections;
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static uint64_t current_bandwidth;
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/* Making this global saves on passing it around everywhere */
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static int64_t cur_time;
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static AVLFG random_state;
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static FILE *logfile = NULL;
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static void htmlstrip(char *s) {
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while (s && *s) {
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s += strspn(s, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,. ");
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if (*s)
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*s++ = '?';
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}
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}
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static int64_t ffm_read_write_index(int fd)
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{
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uint8_t buf[8];
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if (lseek(fd, 8, SEEK_SET) < 0)
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return AVERROR(EIO);
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if (read(fd, buf, 8) != 8)
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return AVERROR(EIO);
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return AV_RB64(buf);
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}
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static int ffm_write_write_index(int fd, int64_t pos)
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{
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uint8_t buf[8];
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int i;
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for(i=0;i<8;i++)
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buf[i] = (pos >> (56 - i * 8)) & 0xff;
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if (lseek(fd, 8, SEEK_SET) < 0)
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return AVERROR(EIO);
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if (write(fd, buf, 8) != 8)
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return AVERROR(EIO);
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return 8;
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}
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static void ffm_set_write_index(AVFormatContext *s, int64_t pos,
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int64_t file_size)
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{
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FFMContext *ffm = s->priv_data;
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ffm->write_index = pos;
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ffm->file_size = file_size;
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}
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static char *ctime1(char *buf2, int buf_size)
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{
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time_t ti;
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char *p;
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ti = time(NULL);
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p = ctime(&ti);
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av_strlcpy(buf2, p, buf_size);
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p = buf2 + strlen(p) - 1;
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if (*p == '\n')
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*p = '\0';
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return buf2;
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}
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static void http_vlog(const char *fmt, va_list vargs)
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{
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static int print_prefix = 1;
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char buf[32];
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if (!logfile)
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return;
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if (print_prefix) {
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ctime1(buf, sizeof(buf));
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fprintf(logfile, "%s ", buf);
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}
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print_prefix = strstr(fmt, "\n") != NULL;
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vfprintf(logfile, fmt, vargs);
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fflush(logfile);
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}
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#ifdef __GNUC__
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__attribute__ ((format (printf, 1, 2)))
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#endif
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static void http_log(const char *fmt, ...)
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{
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va_list vargs;
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va_start(vargs, fmt);
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http_vlog(fmt, vargs);
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va_end(vargs);
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}
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static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
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{
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static int print_prefix = 1;
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AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
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if (level > av_log_get_level())
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return;
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if (print_prefix && avc)
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http_log("[%s @ %p]", avc->item_name(ptr), ptr);
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print_prefix = strstr(fmt, "\n") != NULL;
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http_vlog(fmt, vargs);
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}
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static void log_connection(HTTPContext *c)
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{
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if (c->suppress_log)
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return;
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http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
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inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
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c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
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}
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static void update_datarate(DataRateData *drd, int64_t count)
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{
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if (!drd->time1 && !drd->count1) {
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drd->time1 = drd->time2 = cur_time;
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drd->count1 = drd->count2 = count;
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} else if (cur_time - drd->time2 > 5000) {
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drd->time1 = drd->time2;
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drd->count1 = drd->count2;
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drd->time2 = cur_time;
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drd->count2 = count;
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}
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}
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/* In bytes per second */
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static int compute_datarate(DataRateData *drd, int64_t count)
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{
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if (cur_time == drd->time1)
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return 0;
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return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
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}
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static void start_children(FFServerStream *feed)
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{
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char pathname[1024];
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char *slash;
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int i;
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if (no_launch)
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return;
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/* replace "ffserver" with "ffmpeg" in the path of current
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* program. Ignore user provided path */
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av_strlcpy(pathname, my_program_name, sizeof(pathname));
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slash = strrchr(pathname, '/');
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if (!slash)
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slash = pathname;
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else
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slash++;
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strcpy(slash, "ffmpeg");
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for (; feed; feed = feed->next) {
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if (!feed->child_argv || feed->pid)
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continue;
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feed->pid_start = time(0);
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feed->pid = fork();
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if (feed->pid < 0) {
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http_log("Unable to create children\n");
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exit(1);
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}
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if (feed->pid)
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continue;
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/* In child */
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http_log("Launch command line: ");
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http_log("%s ", pathname);
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for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
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http_log("%s ", feed->child_argv[i]);
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http_log("\n");
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for (i = 3; i < 256; i++)
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close(i);
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if (!config.debug) {
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if (!freopen("/dev/null", "r", stdin))
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http_log("failed to redirect STDIN to /dev/null\n;");
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if (!freopen("/dev/null", "w", stdout))
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http_log("failed to redirect STDOUT to /dev/null\n;");
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if (!freopen("/dev/null", "w", stderr))
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http_log("failed to redirect STDERR to /dev/null\n;");
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}
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signal(SIGPIPE, SIG_DFL);
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execvp(pathname, feed->child_argv);
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_exit(1);
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}
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}
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/* open a listening socket */
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static int socket_open_listen(struct sockaddr_in *my_addr)
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{
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int server_fd, tmp;
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server_fd = socket(AF_INET,SOCK_STREAM,0);
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if (server_fd < 0) {
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perror ("socket");
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return -1;
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}
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tmp = 1;
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if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp)))
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av_log(NULL, AV_LOG_WARNING, "setsockopt SO_REUSEADDR failed\n");
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my_addr->sin_family = AF_INET;
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if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
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char bindmsg[32];
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snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)",
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ntohs(my_addr->sin_port));
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perror (bindmsg);
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closesocket(server_fd);
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return -1;
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}
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if (listen (server_fd, 5) < 0) {
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perror ("listen");
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closesocket(server_fd);
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return -1;
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}
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if (ff_socket_nonblock(server_fd, 1) < 0)
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av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
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return server_fd;
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}
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/* start all multicast streams */
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static void start_multicast(void)
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{
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FFServerStream *stream;
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char session_id[32];
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HTTPContext *rtp_c;
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struct sockaddr_in dest_addr = {0};
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int default_port, stream_index;
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unsigned int random0, random1;
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default_port = 6000;
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for(stream = config.first_stream; stream; stream = stream->next) {
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if (!stream->is_multicast)
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continue;
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random0 = av_lfg_get(&random_state);
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random1 = av_lfg_get(&random_state);
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/* open the RTP connection */
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snprintf(session_id, sizeof(session_id), "%08x%08x", random0, random1);
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/* choose a port if none given */
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if (stream->multicast_port == 0) {
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stream->multicast_port = default_port;
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default_port += 100;
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}
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dest_addr.sin_family = AF_INET;
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dest_addr.sin_addr = stream->multicast_ip;
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dest_addr.sin_port = htons(stream->multicast_port);
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|
|
rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
|
|
RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
|
|
if (!rtp_c)
|
|
continue;
|
|
|
|
if (open_input_stream(rtp_c, "") < 0) {
|
|
http_log("Could not open input stream for stream '%s'\n",
|
|
stream->filename);
|
|
continue;
|
|
}
|
|
|
|
/* open each RTP stream */
|
|
for(stream_index = 0; stream_index < stream->nb_streams;
|
|
stream_index++) {
|
|
dest_addr.sin_port = htons(stream->multicast_port +
|
|
2 * stream_index);
|
|
if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) >= 0)
|
|
continue;
|
|
|
|
http_log("Could not open output stream '%s/streamid=%d'\n",
|
|
stream->filename, stream_index);
|
|
exit(1);
|
|
}
|
|
|
|
rtp_c->state = HTTPSTATE_SEND_DATA;
|
|
}
|
|
}
|
|
|
|
/* main loop of the HTTP server */
|
|
static int http_server(void)
|
|
{
|
|
int server_fd = 0, rtsp_server_fd = 0;
|
|
int ret, delay;
|
|
struct pollfd *poll_table, *poll_entry;
|
|
HTTPContext *c, *c_next;
|
|
|
|
poll_table = av_mallocz_array(config.nb_max_http_connections + 2,
|
|
sizeof(*poll_table));
|
|
if(!poll_table) {
|
|
http_log("Impossible to allocate a poll table handling %d "
|
|
"connections.\n", config.nb_max_http_connections);
|
|
return -1;
|
|
}
|
|
|
|
if (config.http_addr.sin_port) {
|
|
server_fd = socket_open_listen(&config.http_addr);
|
|
if (server_fd < 0) {
|
|
av_free(poll_table);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (config.rtsp_addr.sin_port) {
|
|
rtsp_server_fd = socket_open_listen(&config.rtsp_addr);
|
|
if (rtsp_server_fd < 0) {
|
|
av_free(poll_table);
|
|
closesocket(server_fd);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (!rtsp_server_fd && !server_fd) {
|
|
http_log("HTTP and RTSP disabled.\n");
|
|
av_free(poll_table);
|
|
return -1;
|
|
}
|
|
|
|
http_log("FFserver started.\n");
|
|
|
|
start_children(config.first_feed);
|
|
|
|
start_multicast();
|
|
|
|
for(;;) {
|
|
poll_entry = poll_table;
|
|
if (server_fd) {
|
|
poll_entry->fd = server_fd;
|
|
poll_entry->events = POLLIN;
|
|
poll_entry++;
|
|
}
|
|
if (rtsp_server_fd) {
|
|
poll_entry->fd = rtsp_server_fd;
|
|
poll_entry->events = POLLIN;
|
|
poll_entry++;
|
|
}
|
|
|
|
/* wait for events on each HTTP handle */
|
|
c = first_http_ctx;
|
|
delay = 1000;
|
|
while (c) {
|
|
int fd;
|
|
fd = c->fd;
|
|
switch(c->state) {
|
|
case HTTPSTATE_SEND_HEADER:
|
|
case RTSPSTATE_SEND_REPLY:
|
|
case RTSPSTATE_SEND_PACKET:
|
|
c->poll_entry = poll_entry;
|
|
poll_entry->fd = fd;
|
|
poll_entry->events = POLLOUT;
|
|
poll_entry++;
|
|
break;
|
|
case HTTPSTATE_SEND_DATA_HEADER:
|
|
case HTTPSTATE_SEND_DATA:
|
|
case HTTPSTATE_SEND_DATA_TRAILER:
|
|
if (!c->is_packetized) {
|
|
/* for TCP, we output as much as we can
|
|
* (may need to put a limit) */
|
|
c->poll_entry = poll_entry;
|
|
poll_entry->fd = fd;
|
|
poll_entry->events = POLLOUT;
|
|
poll_entry++;
|
|
} else {
|
|
/* when ffserver is doing the timing, we work by
|
|
* looking at which packet needs to be sent every
|
|
* 10 ms (one tick wait XXX: 10 ms assumed) */
|
|
if (delay > 10)
|
|
delay = 10;
|
|
}
|
|
break;
|
|
case HTTPSTATE_WAIT_REQUEST:
|
|
case HTTPSTATE_RECEIVE_DATA:
|
|
case HTTPSTATE_WAIT_FEED:
|
|
case RTSPSTATE_WAIT_REQUEST:
|
|
/* need to catch errors */
|
|
c->poll_entry = poll_entry;
|
|
poll_entry->fd = fd;
|
|
poll_entry->events = POLLIN;/* Maybe this will work */
|
|
poll_entry++;
|
|
break;
|
|
default:
|
|
c->poll_entry = NULL;
|
|
break;
|
|
}
|
|
c = c->next;
|
|
}
|
|
|
|
/* wait for an event on one connection. We poll at least every
|
|
* second to handle timeouts */
|
|
do {
|
|
ret = poll(poll_table, poll_entry - poll_table, delay);
|
|
if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
|
|
ff_neterrno() != AVERROR(EINTR)) {
|
|
av_free(poll_table);
|
|
return -1;
|
|
}
|
|
} while (ret < 0);
|
|
|
|
cur_time = av_gettime() / 1000;
|
|
|
|
if (need_to_start_children) {
|
|
need_to_start_children = 0;
|
|
start_children(config.first_feed);
|
|
}
|
|
|
|
/* now handle the events */
|
|
for(c = first_http_ctx; c; c = c_next) {
|
|
c_next = c->next;
|
|
if (handle_connection(c) < 0) {
|
|
log_connection(c);
|
|
/* close and free the connection */
|
|
close_connection(c);
|
|
}
|
|
}
|
|
|
|
poll_entry = poll_table;
|
|
if (server_fd) {
|
|
/* new HTTP connection request ? */
|
|
if (poll_entry->revents & POLLIN)
|
|
new_connection(server_fd, 0);
|
|
poll_entry++;
|
|
}
|
|
if (rtsp_server_fd) {
|
|
/* new RTSP connection request ? */
|
|
if (poll_entry->revents & POLLIN)
|
|
new_connection(rtsp_server_fd, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* start waiting for a new HTTP/RTSP request */
|
|
static void start_wait_request(HTTPContext *c, int is_rtsp)
|
|
{
|
|
c->buffer_ptr = c->buffer;
|
|
c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
|
|
|
|
c->state = is_rtsp ? RTSPSTATE_WAIT_REQUEST : HTTPSTATE_WAIT_REQUEST;
|
|
c->timeout = cur_time +
|
|
(is_rtsp ? RTSP_REQUEST_TIMEOUT : HTTP_REQUEST_TIMEOUT);
|
|
}
|
|
|
|
static void http_send_too_busy_reply(int fd)
|
|
{
|
|
char buffer[400];
|
|
int len = snprintf(buffer, sizeof(buffer),
|
|
"HTTP/1.0 503 Server too busy\r\n"
|
|
"Content-type: text/html\r\n"
|
|
"\r\n"
|
|
"<html><head><title>Too busy</title></head><body>\r\n"
|
|
"<p>The server is too busy to serve your request at this time.</p>\r\n"
|
|
"<p>The number of current connections is %u, and this exceeds the limit of %u.</p>\r\n"
|
|
"</body></html>\r\n",
|
|
nb_connections, config.nb_max_connections);
|
|
av_assert0(len < sizeof(buffer));
|
|
if (send(fd, buffer, len, 0) < len)
|
|
av_log(NULL, AV_LOG_WARNING,
|
|
"Could not send too-busy reply, send() failed\n");
|
|
}
|
|
|
|
|
|
static void new_connection(int server_fd, int is_rtsp)
|
|
{
|
|
struct sockaddr_in from_addr;
|
|
socklen_t len;
|
|
int fd;
|
|
HTTPContext *c = NULL;
|
|
|
|
len = sizeof(from_addr);
|
|
fd = accept(server_fd, (struct sockaddr *)&from_addr,
|
|
&len);
|
|
if (fd < 0) {
|
|
http_log("error during accept %s\n", strerror(errno));
|
|
return;
|
|
}
|
|
if (ff_socket_nonblock(fd, 1) < 0)
|
|
av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
|
|
|
|
if (nb_connections >= config.nb_max_connections) {
|
|
http_send_too_busy_reply(fd);
|
|
goto fail;
|
|
}
|
|
|
|
/* add a new connection */
|
|
c = av_mallocz(sizeof(HTTPContext));
|
|
if (!c)
|
|
goto fail;
|
|
|
|
c->fd = fd;
|
|
c->poll_entry = NULL;
|
|
c->from_addr = from_addr;
|
|
c->buffer_size = IOBUFFER_INIT_SIZE;
|
|
c->buffer = av_malloc(c->buffer_size);
|
|
if (!c->buffer)
|
|
goto fail;
|
|
|
|
c->next = first_http_ctx;
|
|
first_http_ctx = c;
|
|
nb_connections++;
|
|
|
|
start_wait_request(c, is_rtsp);
|
|
|
|
return;
|
|
|
|
fail:
|
|
if (c) {
|
|
av_freep(&c->buffer);
|
|
av_free(c);
|
|
}
|
|
closesocket(fd);
|
|
}
|
|
|
|
static void close_connection(HTTPContext *c)
|
|
{
|
|
HTTPContext **cp, *c1;
|
|
int i, nb_streams;
|
|
AVFormatContext *ctx;
|
|
AVStream *st;
|
|
|
|
/* remove connection from list */
|
|
cp = &first_http_ctx;
|
|
while (*cp) {
|
|
c1 = *cp;
|
|
if (c1 == c)
|
|
*cp = c->next;
|
|
else
|
|
cp = &c1->next;
|
|
}
|
|
|
|
/* remove references, if any (XXX: do it faster) */
|
|
for(c1 = first_http_ctx; c1; c1 = c1->next) {
|
|
if (c1->rtsp_c == c)
|
|
c1->rtsp_c = NULL;
|
|
}
|
|
|
|
/* remove connection associated resources */
|
|
if (c->fd >= 0)
|
|
closesocket(c->fd);
|
|
if (c->fmt_in) {
|
|
/* close each frame parser */
|
|
for(i=0;i<c->fmt_in->nb_streams;i++) {
|
|
st = c->fmt_in->streams[i];
|
|
if (st->codec->codec)
|
|
avcodec_close(st->codec);
|
|
}
|
|
avformat_close_input(&c->fmt_in);
|
|
}
|
|
|
|
/* free RTP output streams if any */
|
|
nb_streams = 0;
|
|
if (c->stream)
|
|
nb_streams = c->stream->nb_streams;
|
|
|
|
for(i=0;i<nb_streams;i++) {
|
|
ctx = c->rtp_ctx[i];
|
|
if (ctx) {
|
|
av_write_trailer(ctx);
|
|
av_dict_free(&ctx->metadata);
|
|
av_freep(&ctx->streams[0]);
|
|
av_freep(&ctx);
|
|
}
|
|
ffurl_close(c->rtp_handles[i]);
|
|
}
|
|
|
|
ctx = &c->fmt_ctx;
|
|
|
|
if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
|
|
/* prepare header */
|
|
if (ctx->oformat && avio_open_dyn_buf(&ctx->pb) >= 0) {
|
|
av_write_trailer(ctx);
|
|
av_freep(&c->pb_buffer);
|
|
avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
|
|
}
|
|
}
|
|
|
|
for(i=0; i<ctx->nb_streams; i++)
|
|
av_freep(&ctx->streams[i]);
|
|
av_freep(&ctx->streams);
|
|
av_freep(&ctx->priv_data);
|
|
|
|
if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
|
|
current_bandwidth -= c->stream->bandwidth;
|
|
|
|
/* signal that there is no feed if we are the feeder socket */
|
|
if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
|
|
c->stream->feed_opened = 0;
|
|
close(c->feed_fd);
|
|
}
|
|
|
|
av_freep(&c->pb_buffer);
|
|
av_freep(&c->packet_buffer);
|
|
av_freep(&c->buffer);
|
|
av_free(c);
|
|
nb_connections--;
|
|
}
|
|
|
|
static int handle_connection(HTTPContext *c)
|
|
{
|
|
int len, ret;
|
|
uint8_t *ptr;
|
|
|
|
switch(c->state) {
|
|
case HTTPSTATE_WAIT_REQUEST:
|
|
case RTSPSTATE_WAIT_REQUEST:
|
|
/* timeout ? */
|
|
if ((c->timeout - cur_time) < 0)
|
|
return -1;
|
|
if (c->poll_entry->revents & (POLLERR | POLLHUP))
|
|
return -1;
|
|
|
|
/* no need to read if no events */
|
|
if (!(c->poll_entry->revents & POLLIN))
|
|
return 0;
|
|
/* read the data */
|
|
read_loop:
|
|
if (!(len = recv(c->fd, c->buffer_ptr, 1, 0)))
|
|
return -1;
|
|
|
|
if (len < 0) {
|
|
if (ff_neterrno() != AVERROR(EAGAIN) &&
|
|
ff_neterrno() != AVERROR(EINTR))
|
|
return -1;
|
|
break;
|
|
}
|
|
/* search for end of request. */
|
|
c->buffer_ptr += len;
|
|
ptr = c->buffer_ptr;
|
|
if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
|
|
(ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
|
|
/* request found : parse it and reply */
|
|
if (c->state == HTTPSTATE_WAIT_REQUEST)
|
|
ret = http_parse_request(c);
|
|
else
|
|
ret = rtsp_parse_request(c);
|
|
|
|
if (ret < 0)
|
|
return -1;
|
|
} else if (ptr >= c->buffer_end) {
|
|
/* request too long: cannot do anything */
|
|
return -1;
|
|
} else goto read_loop;
|
|
|
|
break;
|
|
|
|
case HTTPSTATE_SEND_HEADER:
|
|
if (c->poll_entry->revents & (POLLERR | POLLHUP))
|
|
return -1;
|
|
|
|
/* no need to write if no events */
|
|
if (!(c->poll_entry->revents & POLLOUT))
|
|
return 0;
|
|
len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
|
|
if (len < 0) {
|
|
if (ff_neterrno() != AVERROR(EAGAIN) &&
|
|
ff_neterrno() != AVERROR(EINTR)) {
|
|
goto close_connection;
|
|
}
|
|
break;
|
|
}
|
|
c->buffer_ptr += len;
|
|
if (c->stream)
|
|
c->stream->bytes_served += len;
|
|
c->data_count += len;
|
|
if (c->buffer_ptr >= c->buffer_end) {
|
|
av_freep(&c->pb_buffer);
|
|
/* if error, exit */
|
|
if (c->http_error)
|
|
return -1;
|
|
/* all the buffer was sent : synchronize to the incoming
|
|
* stream */
|
|
c->state = HTTPSTATE_SEND_DATA_HEADER;
|
|
c->buffer_ptr = c->buffer_end = c->buffer;
|
|
}
|
|
break;
|
|
|
|
case HTTPSTATE_SEND_DATA:
|
|
case HTTPSTATE_SEND_DATA_HEADER:
|
|
case HTTPSTATE_SEND_DATA_TRAILER:
|
|
/* for packetized output, we consider we can always write (the
|
|
* input streams set the speed). It may be better to verify
|
|
* that we do not rely too much on the kernel queues */
|
|
if (!c->is_packetized) {
|
|
if (c->poll_entry->revents & (POLLERR | POLLHUP))
|
|
return -1;
|
|
|
|
/* no need to read if no events */
|
|
if (!(c->poll_entry->revents & POLLOUT))
|
|
return 0;
|
|
}
|
|
if (http_send_data(c) < 0)
|
|
return -1;
|
|
/* close connection if trailer sent */
|
|
if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
|
|
return -1;
|
|
/* Check if it is a single jpeg frame 123 */
|
|
if (c->stream->single_frame && c->data_count > c->cur_frame_bytes && c->cur_frame_bytes > 0) {
|
|
close_connection(c);
|
|
}
|
|
break;
|
|
case HTTPSTATE_RECEIVE_DATA:
|
|
/* no need to read if no events */
|
|
if (c->poll_entry->revents & (POLLERR | POLLHUP))
|
|
return -1;
|
|
if (!(c->poll_entry->revents & POLLIN))
|
|
return 0;
|
|
if (http_receive_data(c) < 0)
|
|
return -1;
|
|
break;
|
|
case HTTPSTATE_WAIT_FEED:
|
|
/* no need to read if no events */
|
|
if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
|
|
return -1;
|
|
|
|
/* nothing to do, we'll be waken up by incoming feed packets */
|
|
break;
|
|
|
|
case RTSPSTATE_SEND_REPLY:
|
|
if (c->poll_entry->revents & (POLLERR | POLLHUP))
|
|
goto close_connection;
|
|
/* no need to write if no events */
|
|
if (!(c->poll_entry->revents & POLLOUT))
|
|
return 0;
|
|
len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
|
|
if (len < 0) {
|
|
if (ff_neterrno() != AVERROR(EAGAIN) &&
|
|
ff_neterrno() != AVERROR(EINTR)) {
|
|
goto close_connection;
|
|
}
|
|
break;
|
|
}
|
|
c->buffer_ptr += len;
|
|
c->data_count += len;
|
|
if (c->buffer_ptr >= c->buffer_end) {
|
|
/* all the buffer was sent : wait for a new request */
|
|
av_freep(&c->pb_buffer);
|
|
start_wait_request(c, 1);
|
|
}
|
|
break;
|
|
case RTSPSTATE_SEND_PACKET:
|
|
if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
|
|
av_freep(&c->packet_buffer);
|
|
return -1;
|
|
}
|
|
/* no need to write if no events */
|
|
if (!(c->poll_entry->revents & POLLOUT))
|
|
return 0;
|
|
len = send(c->fd, c->packet_buffer_ptr,
|
|
c->packet_buffer_end - c->packet_buffer_ptr, 0);
|
|
if (len < 0) {
|
|
if (ff_neterrno() != AVERROR(EAGAIN) &&
|
|
ff_neterrno() != AVERROR(EINTR)) {
|
|
/* error : close connection */
|
|
av_freep(&c->packet_buffer);
|
|
return -1;
|
|
}
|
|
break;
|
|
}
|
|
c->packet_buffer_ptr += len;
|
|
if (c->packet_buffer_ptr >= c->packet_buffer_end) {
|
|
/* all the buffer was sent : wait for a new request */
|
|
av_freep(&c->packet_buffer);
|
|
c->state = RTSPSTATE_WAIT_REQUEST;
|
|
}
|
|
break;
|
|
case HTTPSTATE_READY:
|
|
/* nothing to do */
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
|
|
close_connection:
|
|
av_freep(&c->pb_buffer);
|
|
return -1;
|
|
}
|
|
|
|
static int extract_rates(char *rates, int ratelen, const char *request)
|
|
{
|
|
const char *p;
|
|
|
|
for (p = request; *p && *p != '\r' && *p != '\n'; ) {
|
|
if (av_strncasecmp(p, "Pragma:", 7) == 0) {
|
|
const char *q = p + 7;
|
|
|
|
while (*q && *q != '\n' && av_isspace(*q))
|
|
q++;
|
|
|
|
if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
|
|
int stream_no;
|
|
int rate_no;
|
|
|
|
q += 20;
|
|
|
|
memset(rates, 0xff, ratelen);
|
|
|
|
while (1) {
|
|
while (*q && *q != '\n' && *q != ':')
|
|
q++;
|
|
|
|
if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
|
|
break;
|
|
|
|
stream_no--;
|
|
if (stream_no < ratelen && stream_no >= 0)
|
|
rates[stream_no] = rate_no;
|
|
|
|
while (*q && *q != '\n' && !av_isspace(*q))
|
|
q++;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
}
|
|
p = strchr(p, '\n');
|
|
if (!p)
|
|
break;
|
|
|
|
p++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int find_stream_in_feed(FFServerStream *feed, AVCodecContext *codec,
|
|
int bit_rate)
|
|
{
|
|
int i;
|
|
int best_bitrate = 100000000;
|
|
int best = -1;
|
|
|
|
for (i = 0; i < feed->nb_streams; i++) {
|
|
AVCodecContext *feed_codec = feed->streams[i]->codec;
|
|
|
|
if (feed_codec->codec_id != codec->codec_id ||
|
|
feed_codec->sample_rate != codec->sample_rate ||
|
|
feed_codec->width != codec->width ||
|
|
feed_codec->height != codec->height)
|
|
continue;
|
|
|
|
/* Potential stream */
|
|
|
|
/* We want the fastest stream less than bit_rate, or the slowest
|
|
* faster than bit_rate
|
|
*/
|
|
|
|
if (feed_codec->bit_rate <= bit_rate) {
|
|
if (best_bitrate > bit_rate ||
|
|
feed_codec->bit_rate > best_bitrate) {
|
|
best_bitrate = feed_codec->bit_rate;
|
|
best = i;
|
|
}
|
|
continue;
|
|
}
|
|
if (feed_codec->bit_rate < best_bitrate) {
|
|
best_bitrate = feed_codec->bit_rate;
|
|
best = i;
|
|
}
|
|
}
|
|
return best;
|
|
}
|
|
|
|
static int modify_current_stream(HTTPContext *c, char *rates)
|
|
{
|
|
int i;
|
|
FFServerStream *req = c->stream;
|
|
int action_required = 0;
|
|
|
|
/* Not much we can do for a feed */
|
|
if (!req->feed)
|
|
return 0;
|
|
|
|
for (i = 0; i < req->nb_streams; i++) {
|
|
AVCodecContext *codec = req->streams[i]->codec;
|
|
|
|
switch(rates[i]) {
|
|
case 0:
|
|
c->switch_feed_streams[i] = req->feed_streams[i];
|
|
break;
|
|
case 1:
|
|
c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
|
|
break;
|
|
case 2:
|
|
/* Wants off or slow */
|
|
c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
|
|
#ifdef WANTS_OFF
|
|
/* This doesn't work well when it turns off the only stream! */
|
|
c->switch_feed_streams[i] = -2;
|
|
c->feed_streams[i] = -2;
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
if (c->switch_feed_streams[i] >= 0 &&
|
|
c->switch_feed_streams[i] != c->feed_streams[i]) {
|
|
action_required = 1;
|
|
}
|
|
}
|
|
|
|
return action_required;
|
|
}
|
|
|
|
static void get_word(char *buf, int buf_size, const char **pp)
|
|
{
|
|
const char *p;
|
|
char *q;
|
|
|
|
p = *pp;
|
|
p += strspn(p, SPACE_CHARS);
|
|
q = buf;
|
|
while (!av_isspace(*p) && *p != '\0') {
|
|
if ((q - buf) < buf_size - 1)
|
|
*q++ = *p;
|
|
p++;
|
|
}
|
|
if (buf_size > 0)
|
|
*q = '\0';
|
|
*pp = p;
|
|
}
|
|
|
|
static FFServerIPAddressACL* parse_dynamic_acl(FFServerStream *stream,
|
|
HTTPContext *c)
|
|
{
|
|
FILE* f;
|
|
char line[1024];
|
|
char cmd[1024];
|
|
FFServerIPAddressACL *acl = NULL;
|
|
int line_num = 0;
|
|
const char *p;
|
|
|
|
f = fopen(stream->dynamic_acl, "r");
|
|
if (!f) {
|
|
perror(stream->dynamic_acl);
|
|
return NULL;
|
|
}
|
|
|
|
acl = av_mallocz(sizeof(FFServerIPAddressACL));
|
|
if (!acl) {
|
|
fclose(f);
|
|
return NULL;
|
|
}
|
|
|
|
/* Build ACL */
|
|
while (fgets(line, sizeof(line), f)) {
|
|
line_num++;
|
|
p = line;
|
|
while (av_isspace(*p))
|
|
p++;
|
|
if (*p == '\0' || *p == '#')
|
|
continue;
|
|
ffserver_get_arg(cmd, sizeof(cmd), &p);
|
|
|
|
if (!av_strcasecmp(cmd, "ACL"))
|
|
ffserver_parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl,
|
|
line_num);
|
|
}
|
|
fclose(f);
|
|
return acl;
|
|
}
|
|
|
|
|
|
static void free_acl_list(FFServerIPAddressACL *in_acl)
|
|
{
|
|
FFServerIPAddressACL *pacl, *pacl2;
|
|
|
|
pacl = in_acl;
|
|
while(pacl) {
|
|
pacl2 = pacl;
|
|
pacl = pacl->next;
|
|
av_freep(pacl2);
|
|
}
|
|
}
|
|
|
|
static int validate_acl_list(FFServerIPAddressACL *in_acl, HTTPContext *c)
|
|
{
|
|
enum FFServerIPAddressAction last_action = IP_DENY;
|
|
FFServerIPAddressACL *acl;
|
|
struct in_addr *src = &c->from_addr.sin_addr;
|
|
unsigned long src_addr = src->s_addr;
|
|
|
|
for (acl = in_acl; acl; acl = acl->next) {
|
|
if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
|
|
return (acl->action == IP_ALLOW) ? 1 : 0;
|
|
last_action = acl->action;
|
|
}
|
|
|
|
/* Nothing matched, so return not the last action */
|
|
return (last_action == IP_DENY) ? 1 : 0;
|
|
}
|
|
|
|
static int validate_acl(FFServerStream *stream, HTTPContext *c)
|
|
{
|
|
int ret = 0;
|
|
FFServerIPAddressACL *acl;
|
|
|
|
/* if stream->acl is null validate_acl_list will return 1 */
|
|
ret = validate_acl_list(stream->acl, c);
|
|
|
|
if (stream->dynamic_acl[0]) {
|
|
acl = parse_dynamic_acl(stream, c);
|
|
ret = validate_acl_list(acl, c);
|
|
free_acl_list(acl);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* compute the real filename of a file by matching it without its
|
|
* extensions to all the stream's filenames
|
|
*/
|
|
static void compute_real_filename(char *filename, int max_size)
|
|
{
|
|
char file1[1024];
|
|
char file2[1024];
|
|
char *p;
|
|
FFServerStream *stream;
|
|
|
|
/* compute filename by matching without the file extensions */
|
|
av_strlcpy(file1, filename, sizeof(file1));
|
|
p = strrchr(file1, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
for(stream = config.first_stream; stream; stream = stream->next) {
|
|
av_strlcpy(file2, stream->filename, sizeof(file2));
|
|
p = strrchr(file2, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
if (!strcmp(file1, file2)) {
|
|
av_strlcpy(filename, stream->filename, max_size);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
enum RedirType {
|
|
REDIR_NONE,
|
|
REDIR_ASX,
|
|
REDIR_RAM,
|
|
REDIR_ASF,
|
|
REDIR_RTSP,
|
|
REDIR_SDP,
|
|
};
|
|
|
|
/* parse HTTP request and prepare header */
|
|
static int http_parse_request(HTTPContext *c)
|
|
{
|
|
const char *p;
|
|
char *p1;
|
|
enum RedirType redir_type;
|
|
char cmd[32];
|
|
char info[1024], filename[1024];
|
|
char url[1024], *q;
|
|
char protocol[32];
|
|
char msg[1024];
|
|
const char *mime_type;
|
|
FFServerStream *stream;
|
|
int i;
|
|
char ratebuf[32];
|
|
const char *useragent = 0;
|
|
|
|
p = c->buffer;
|
|
get_word(cmd, sizeof(cmd), &p);
|
|
av_strlcpy(c->method, cmd, sizeof(c->method));
|
|
|
|
if (!strcmp(cmd, "GET"))
|
|
c->post = 0;
|
|
else if (!strcmp(cmd, "POST"))
|
|
c->post = 1;
|
|
else
|
|
return -1;
|
|
|
|
get_word(url, sizeof(url), &p);
|
|
av_strlcpy(c->url, url, sizeof(c->url));
|
|
|
|
get_word(protocol, sizeof(protocol), (const char **)&p);
|
|
if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
|
|
return -1;
|
|
|
|
av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
|
|
|
|
if (config.debug)
|
|
http_log("%s - - New connection: %s %s\n",
|
|
inet_ntoa(c->from_addr.sin_addr), cmd, url);
|
|
|
|
/* find the filename and the optional info string in the request */
|
|
p1 = strchr(url, '?');
|
|
if (p1) {
|
|
av_strlcpy(info, p1, sizeof(info));
|
|
*p1 = '\0';
|
|
} else
|
|
info[0] = '\0';
|
|
|
|
av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
|
|
|
|
for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
|
|
if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
|
|
useragent = p + 11;
|
|
if (*useragent && *useragent != '\n' && av_isspace(*useragent))
|
|
useragent++;
|
|
break;
|
|
}
|
|
p = strchr(p, '\n');
|
|
if (!p)
|
|
break;
|
|
|
|
p++;
|
|
}
|
|
|
|
redir_type = REDIR_NONE;
|
|
if (av_match_ext(filename, "asx")) {
|
|
redir_type = REDIR_ASX;
|
|
filename[strlen(filename)-1] = 'f';
|
|
} else if (av_match_ext(filename, "asf") &&
|
|
(!useragent || av_strncasecmp(useragent, "NSPlayer", 8))) {
|
|
/* if this isn't WMP or lookalike, return the redirector file */
|
|
redir_type = REDIR_ASF;
|
|
} else if (av_match_ext(filename, "rpm,ram")) {
|
|
redir_type = REDIR_RAM;
|
|
strcpy(filename + strlen(filename)-2, "m");
|
|
} else if (av_match_ext(filename, "rtsp")) {
|
|
redir_type = REDIR_RTSP;
|
|
compute_real_filename(filename, sizeof(filename) - 1);
|
|
} else if (av_match_ext(filename, "sdp")) {
|
|
redir_type = REDIR_SDP;
|
|
compute_real_filename(filename, sizeof(filename) - 1);
|
|
}
|
|
|
|
/* "redirect" request to index.html */
|
|
if (!strlen(filename))
|
|
av_strlcpy(filename, "index.html", sizeof(filename) - 1);
|
|
|
|
stream = config.first_stream;
|
|
while (stream) {
|
|
if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
|
|
break;
|
|
stream = stream->next;
|
|
}
|
|
if (!stream) {
|
|
snprintf(msg, sizeof(msg), "File '%s' not found", url);
|
|
http_log("File '%s' not found\n", url);
|
|
goto send_error;
|
|
}
|
|
|
|
c->stream = stream;
|
|
memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
|
|
memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
|
|
|
|
if (stream->stream_type == STREAM_TYPE_REDIRECT) {
|
|
c->http_error = 301;
|
|
q = c->buffer;
|
|
snprintf(q, c->buffer_size,
|
|
"HTTP/1.0 301 Moved\r\n"
|
|
"Location: %s\r\n"
|
|
"Content-type: text/html\r\n"
|
|
"\r\n"
|
|
"<html><head><title>Moved</title></head><body>\r\n"
|
|
"You should be <a href=\"%s\">redirected</a>.\r\n"
|
|
"</body></html>\r\n",
|
|
stream->feed_filename, stream->feed_filename);
|
|
q += strlen(q);
|
|
/* prepare output buffer */
|
|
c->buffer_ptr = c->buffer;
|
|
c->buffer_end = q;
|
|
c->state = HTTPSTATE_SEND_HEADER;
|
|
return 0;
|
|
}
|
|
|
|
/* If this is WMP, get the rate information */
|
|
if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
|
|
if (modify_current_stream(c, ratebuf)) {
|
|
for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
|
|
if (c->switch_feed_streams[i] >= 0)
|
|
c->switch_feed_streams[i] = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
|
|
current_bandwidth += stream->bandwidth;
|
|
|
|
/* If already streaming this feed, do not let start another feeder. */
|
|
if (stream->feed_opened) {
|
|
snprintf(msg, sizeof(msg), "This feed is already being received.");
|
|
http_log("Feed '%s' already being received\n", stream->feed_filename);
|
|
goto send_error;
|
|
}
|
|
|
|
if (c->post == 0 && config.max_bandwidth < current_bandwidth) {
|
|
c->http_error = 503;
|
|
q = c->buffer;
|
|
snprintf(q, c->buffer_size,
|
|
"HTTP/1.0 503 Server too busy\r\n"
|
|
"Content-type: text/html\r\n"
|
|
"\r\n"
|
|
"<html><head><title>Too busy</title></head><body>\r\n"
|
|
"<p>The server is too busy to serve your request at this time.</p>\r\n"
|
|
"<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
|
|
"and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
|
|
"</body></html>\r\n",
|
|
current_bandwidth, config.max_bandwidth);
|
|
q += strlen(q);
|
|
/* prepare output buffer */
|
|
c->buffer_ptr = c->buffer;
|
|
c->buffer_end = q;
|
|
c->state = HTTPSTATE_SEND_HEADER;
|
|
return 0;
|
|
}
|
|
|
|
if (redir_type != REDIR_NONE) {
|
|
const char *hostinfo = 0;
|
|
|
|
for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
|
|
if (av_strncasecmp(p, "Host:", 5) == 0) {
|
|
hostinfo = p + 5;
|
|
break;
|
|
}
|
|
p = strchr(p, '\n');
|
|
if (!p)
|
|
break;
|
|
|
|
p++;
|
|
}
|
|
|
|
if (hostinfo) {
|
|
char *eoh;
|
|
char hostbuf[260];
|
|
|
|
while (av_isspace(*hostinfo))
|
|
hostinfo++;
|
|
|
|
eoh = strchr(hostinfo, '\n');
|
|
if (eoh) {
|
|
if (eoh[-1] == '\r')
|
|
eoh--;
|
|
|
|
if (eoh - hostinfo < sizeof(hostbuf) - 1) {
|
|
memcpy(hostbuf, hostinfo, eoh - hostinfo);
|
|
hostbuf[eoh - hostinfo] = 0;
|
|
|
|
c->http_error = 200;
|
|
q = c->buffer;
|
|
switch(redir_type) {
|
|
case REDIR_ASX:
|
|
snprintf(q, c->buffer_size,
|
|
"HTTP/1.0 200 ASX Follows\r\n"
|
|
"Content-type: video/x-ms-asf\r\n"
|
|
"\r\n"
|
|
"<ASX Version=\"3\">\r\n"
|
|
//"<!-- Autogenerated by ffserver -->\r\n"
|
|
"<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
|
|
"</ASX>\r\n", hostbuf, filename, info);
|
|
q += strlen(q);
|
|
break;
|
|
case REDIR_RAM:
|
|
snprintf(q, c->buffer_size,
|
|
"HTTP/1.0 200 RAM Follows\r\n"
|
|
"Content-type: audio/x-pn-realaudio\r\n"
|
|
"\r\n"
|
|
"# Autogenerated by ffserver\r\n"
|
|
"http://%s/%s%s\r\n", hostbuf, filename, info);
|
|
q += strlen(q);
|
|
break;
|
|
case REDIR_ASF:
|
|
snprintf(q, c->buffer_size,
|
|
"HTTP/1.0 200 ASF Redirect follows\r\n"
|
|
"Content-type: video/x-ms-asf\r\n"
|
|
"\r\n"
|
|
"[Reference]\r\n"
|
|
"Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
|
|
q += strlen(q);
|
|
break;
|
|
case REDIR_RTSP:
|
|
{
|
|
char hostname[256], *p;
|
|
/* extract only hostname */
|
|
av_strlcpy(hostname, hostbuf, sizeof(hostname));
|
|
p = strrchr(hostname, ':');
|
|
if (p)
|
|
*p = '\0';
|
|
snprintf(q, c->buffer_size,
|
|
"HTTP/1.0 200 RTSP Redirect follows\r\n"
|
|
/* XXX: incorrect MIME type ? */
|
|
"Content-type: application/x-rtsp\r\n"
|
|
"\r\n"
|
|
"rtsp://%s:%d/%s\r\n", hostname, ntohs(config.rtsp_addr.sin_port), filename);
|
|
q += strlen(q);
|
|
}
|
|
break;
|
|
case REDIR_SDP:
|
|
{
|
|
uint8_t *sdp_data;
|
|
int sdp_data_size;
|
|
socklen_t len;
|
|
struct sockaddr_in my_addr;
|
|
|
|
snprintf(q, c->buffer_size,
|
|
"HTTP/1.0 200 OK\r\n"
|
|
"Content-type: application/sdp\r\n"
|
|
"\r\n");
|
|
q += strlen(q);
|
|
|
|
len = sizeof(my_addr);
|
|
|
|
/* XXX: Should probably fail? */
|
|
if (getsockname(c->fd, (struct sockaddr *)&my_addr, &len))
|
|
http_log("getsockname() failed\n");
|
|
|
|
/* XXX: should use a dynamic buffer */
|
|
sdp_data_size = prepare_sdp_description(stream,
|
|
&sdp_data,
|
|
my_addr.sin_addr);
|
|
if (sdp_data_size > 0) {
|
|
memcpy(q, sdp_data, sdp_data_size);
|
|
q += sdp_data_size;
|
|
*q = '\0';
|
|
av_free(sdp_data);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
|
|
/* prepare output buffer */
|
|
c->buffer_ptr = c->buffer;
|
|
c->buffer_end = q;
|
|
c->state = HTTPSTATE_SEND_HEADER;
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
|
|
goto send_error;
|
|
}
|
|
|
|
stream->conns_served++;
|
|
|
|
/* XXX: add there authenticate and IP match */
|
|
|
|
if (c->post) {
|
|
/* if post, it means a feed is being sent */
|
|
if (!stream->is_feed) {
|
|
/* However it might be a status report from WMP! Let us log the
|
|
* data as it might come handy one day. */
|
|
const char *logline = 0;
|
|
int client_id = 0;
|
|
|
|
for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
|
|
if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
|
|
logline = p;
|
|
break;
|
|
}
|
|
if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
|
|
client_id = strtol(p + 18, 0, 10);
|
|
p = strchr(p, '\n');
|
|
if (!p)
|
|
break;
|
|
|
|
p++;
|
|
}
|
|
|
|
if (logline) {
|
|
char *eol = strchr(logline, '\n');
|
|
|
|
logline += 17;
|
|
|
|
if (eol) {
|
|
if (eol[-1] == '\r')
|
|
eol--;
|
|
http_log("%.*s\n", (int) (eol - logline), logline);
|
|
c->suppress_log = 1;
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
http_log("\nGot request:\n%s\n", c->buffer);
|
|
#endif
|
|
|
|
if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
|
|
HTTPContext *wmpc;
|
|
|
|
/* Now we have to find the client_id */
|
|
for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
|
|
if (wmpc->wmp_client_id == client_id)
|
|
break;
|
|
}
|
|
|
|
if (wmpc && modify_current_stream(wmpc, ratebuf))
|
|
wmpc->switch_pending = 1;
|
|
}
|
|
|
|
snprintf(msg, sizeof(msg), "POST command not handled");
|
|
c->stream = 0;
|
|
goto send_error;
|
|
}
|
|
if (http_start_receive_data(c) < 0) {
|
|
snprintf(msg, sizeof(msg), "could not open feed");
|
|
goto send_error;
|
|
}
|
|
c->http_error = 0;
|
|
c->state = HTTPSTATE_RECEIVE_DATA;
|
|
return 0;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
|
|
http_log("\nGot request:\n%s\n", c->buffer);
|
|
#endif
|
|
|
|
if (c->stream->stream_type == STREAM_TYPE_STATUS)
|
|
goto send_status;
|
|
|
|
/* open input stream */
|
|
if (open_input_stream(c, info) < 0) {
|
|
snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
|
|
goto send_error;
|
|
}
|
|
|
|
/* prepare HTTP header */
|
|
c->buffer[0] = 0;
|
|
av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n");
|
|
mime_type = c->stream->fmt->mime_type;
|
|
if (!mime_type)
|
|
mime_type = "application/x-octet-stream";
|
|
av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n");
|
|
|
|
/* for asf, we need extra headers */
|
|
if (!strcmp(c->stream->fmt->name,"asf_stream")) {
|
|
/* Need to allocate a client id */
|
|
|
|
c->wmp_client_id = av_lfg_get(&random_state);
|
|
|
|
av_strlcatf(c->buffer, c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
|
|
}
|
|
av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type);
|
|
av_strlcatf(c->buffer, c->buffer_size, "\r\n");
|
|
q = c->buffer + strlen(c->buffer);
|
|
|
|
/* prepare output buffer */
|
|
c->http_error = 0;
|
|
c->buffer_ptr = c->buffer;
|
|
c->buffer_end = q;
|
|
c->state = HTTPSTATE_SEND_HEADER;
|
|
return 0;
|
|
send_error:
|
|
c->http_error = 404;
|
|
q = c->buffer;
|
|
htmlstrip(msg);
|
|
snprintf(q, c->buffer_size,
|
|
"HTTP/1.0 404 Not Found\r\n"
|
|
"Content-type: text/html\r\n"
|
|
"\r\n"
|
|
"<html>\n"
|
|
"<head><title>404 Not Found</title></head>\n"
|
|
"<body>%s</body>\n"
|
|
"</html>\n", msg);
|
|
q += strlen(q);
|
|
/* prepare output buffer */
|
|
c->buffer_ptr = c->buffer;
|
|
c->buffer_end = q;
|
|
c->state = HTTPSTATE_SEND_HEADER;
|
|
return 0;
|
|
send_status:
|
|
compute_status(c);
|
|
/* horrible: we use this value to avoid
|
|
* going to the send data state */
|
|
c->http_error = 200;
|
|
c->state = HTTPSTATE_SEND_HEADER;
|
|
return 0;
|
|
}
|
|
|
|
static void fmt_bytecount(AVIOContext *pb, int64_t count)
|
|
{
|
|
static const char suffix[] = " kMGTP";
|
|
const char *s;
|
|
|
|
for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
|
|
|
|
avio_printf(pb, "%"PRId64"%c", count, *s);
|
|
}
|
|
|
|
static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream)
|
|
{
|
|
int i, stream_no;
|
|
const char *type = "unknown";
|
|
char parameters[64];
|
|
AVStream *st;
|
|
AVCodec *codec;
|
|
|
|
stream_no = stream->nb_streams;
|
|
|
|
avio_printf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>"
|
|
"type<th>kbits/s<th align=left>codec<th align=left>"
|
|
"Parameters\n");
|
|
|
|
for (i = 0; i < stream_no; i++) {
|
|
st = stream->streams[i];
|
|
codec = avcodec_find_encoder(st->codec->codec_id);
|
|
|
|
parameters[0] = 0;
|
|
|
|
switch(st->codec->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
type = "audio";
|
|
snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz",
|
|
st->codec->channels, st->codec->sample_rate);
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
type = "video";
|
|
snprintf(parameters, sizeof(parameters),
|
|
"%dx%d, q=%d-%d, fps=%d", st->codec->width,
|
|
st->codec->height, st->codec->qmin, st->codec->qmax,
|
|
st->codec->time_base.den / st->codec->time_base.num);
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
|
|
avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d"
|
|
"<td>%s<td>%s\n",
|
|
i, type, st->codec->bit_rate/1000,
|
|
codec ? codec->name : "", parameters);
|
|
}
|
|
|
|
avio_printf(pb, "</table>\n");
|
|
}
|
|
|
|
static void compute_status(HTTPContext *c)
|
|
{
|
|
HTTPContext *c1;
|
|
FFServerStream *stream;
|
|
char *p;
|
|
time_t ti;
|
|
int i, len;
|
|
AVIOContext *pb;
|
|
|
|
if (avio_open_dyn_buf(&pb) < 0) {
|
|
/* XXX: return an error ? */
|
|
c->buffer_ptr = c->buffer;
|
|
c->buffer_end = c->buffer;
|
|
return;
|
|
}
|
|
|
|
avio_printf(pb, "HTTP/1.0 200 OK\r\n");
|
|
avio_printf(pb, "Content-type: text/html\r\n");
|
|
avio_printf(pb, "Pragma: no-cache\r\n");
|
|
avio_printf(pb, "\r\n");
|
|
|
|
avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
|
|
if (c->stream->feed_filename[0])
|
|
avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n",
|
|
c->stream->feed_filename);
|
|
avio_printf(pb, "</head>\n<body>");
|
|
avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
|
|
/* format status */
|
|
avio_printf(pb, "<h2>Available Streams</h2>\n");
|
|
avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
|
|
avio_printf(pb, "<tr><th valign=top>Path<th align=left>Served<br>Conns<th><br>bytes<th valign=top>Format<th>Bit rate<br>kbits/s<th align=left>Video<br>kbits/s<th><br>Codec<th align=left>Audio<br>kbits/s<th><br>Codec<th align=left valign=top>Feed\n");
|
|
stream = config.first_stream;
|
|
while (stream) {
|
|
char sfilename[1024];
|
|
char *eosf;
|
|
|
|
if (stream->feed == stream) {
|
|
stream = stream->next;
|
|
continue;
|
|
}
|
|
|
|
av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
|
|
eosf = sfilename + strlen(sfilename);
|
|
if (eosf - sfilename >= 4) {
|
|
if (strcmp(eosf - 4, ".asf") == 0)
|
|
strcpy(eosf - 4, ".asx");
|
|
else if (strcmp(eosf - 3, ".rm") == 0)
|
|
strcpy(eosf - 3, ".ram");
|
|
else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
|
|
/* generate a sample RTSP director if
|
|
* unicast. Generate an SDP redirector if
|
|
* multicast */
|
|
eosf = strrchr(sfilename, '.');
|
|
if (!eosf)
|
|
eosf = sfilename + strlen(sfilename);
|
|
if (stream->is_multicast)
|
|
strcpy(eosf, ".sdp");
|
|
else
|
|
strcpy(eosf, ".rtsp");
|
|
}
|
|
}
|
|
|
|
avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
|
|
sfilename, stream->filename);
|
|
avio_printf(pb, "<td align=right> %d <td align=right> ",
|
|
stream->conns_served);
|
|
fmt_bytecount(pb, stream->bytes_served);
|
|
|
|
switch(stream->stream_type) {
|
|
case STREAM_TYPE_LIVE: {
|
|
int audio_bit_rate = 0;
|
|
int video_bit_rate = 0;
|
|
const char *audio_codec_name = "";
|
|
const char *video_codec_name = "";
|
|
const char *audio_codec_name_extra = "";
|
|
const char *video_codec_name_extra = "";
|
|
|
|
for(i=0;i<stream->nb_streams;i++) {
|
|
AVStream *st = stream->streams[i];
|
|
AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
|
|
|
|
switch(st->codec->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
audio_bit_rate += st->codec->bit_rate;
|
|
if (codec) {
|
|
if (*audio_codec_name)
|
|
audio_codec_name_extra = "...";
|
|
audio_codec_name = codec->name;
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
video_bit_rate += st->codec->bit_rate;
|
|
if (codec) {
|
|
if (*video_codec_name)
|
|
video_codec_name_extra = "...";
|
|
video_codec_name = codec->name;
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_DATA:
|
|
video_bit_rate += st->codec->bit_rate;
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
}
|
|
|
|
avio_printf(pb, "<td align=center> %s <td align=right> %d "
|
|
"<td align=right> %d <td> %s %s <td align=right> "
|
|
"%d <td> %s %s",
|
|
stream->fmt->name, stream->bandwidth,
|
|
video_bit_rate / 1000, video_codec_name,
|
|
video_codec_name_extra, audio_bit_rate / 1000,
|
|
audio_codec_name, audio_codec_name_extra);
|
|
|
|
if (stream->feed)
|
|
avio_printf(pb, "<td>%s", stream->feed->filename);
|
|
else
|
|
avio_printf(pb, "<td>%s", stream->feed_filename);
|
|
avio_printf(pb, "\n");
|
|
}
|
|
break;
|
|
default:
|
|
avio_printf(pb, "<td align=center> - <td align=right> - "
|
|
"<td align=right> - <td><td align=right> - <td>\n");
|
|
break;
|
|
}
|
|
stream = stream->next;
|
|
}
|
|
avio_printf(pb, "</table>\n");
|
|
|
|
stream = config.first_stream;
|
|
while (stream) {
|
|
|
|
if (stream->feed != stream) {
|
|
stream = stream->next;
|
|
continue;
|
|
}
|
|
|
|
avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
|
|
if (stream->pid) {
|
|
avio_printf(pb, "Running as pid %"PRId64".\n", (int64_t) stream->pid);
|
|
|
|
#if defined(linux)
|
|
{
|
|
FILE *pid_stat;
|
|
char ps_cmd[64];
|
|
|
|
/* This is somewhat linux specific I guess */
|
|
snprintf(ps_cmd, sizeof(ps_cmd),
|
|
"ps -o \"%%cpu,cputime\" --no-headers %"PRId64"",
|
|
(int64_t) stream->pid);
|
|
|
|
pid_stat = popen(ps_cmd, "r");
|
|
if (pid_stat) {
|
|
char cpuperc[10];
|
|
char cpuused[64];
|
|
|
|
if (fscanf(pid_stat, "%9s %63s", cpuperc, cpuused) == 2) {
|
|
avio_printf(pb, "Currently using %s%% of the cpu. "
|
|
"Total time used %s.\n",
|
|
cpuperc, cpuused);
|
|
}
|
|
fclose(pid_stat);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
avio_printf(pb, "<p>");
|
|
}
|
|
|
|
print_stream_params(pb, stream);
|
|
stream = stream->next;
|
|
}
|
|
|
|
/* connection status */
|
|
avio_printf(pb, "<h2>Connection Status</h2>\n");
|
|
|
|
avio_printf(pb, "Number of connections: %d / %d<br>\n",
|
|
nb_connections, config.nb_max_connections);
|
|
|
|
avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
|
|
current_bandwidth, config.max_bandwidth);
|
|
|
|
avio_printf(pb, "<table>\n");
|
|
avio_printf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target "
|
|
"bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
|
|
c1 = first_http_ctx;
|
|
i = 0;
|
|
while (c1) {
|
|
int bitrate;
|
|
int j;
|
|
|
|
bitrate = 0;
|
|
if (c1->stream) {
|
|
for (j = 0; j < c1->stream->nb_streams; j++) {
|
|
if (!c1->stream->feed)
|
|
bitrate += c1->stream->streams[j]->codec->bit_rate;
|
|
else if (c1->feed_streams[j] >= 0)
|
|
bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
|
|
}
|
|
}
|
|
|
|
i++;
|
|
p = inet_ntoa(c1->from_addr.sin_addr);
|
|
avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s"
|
|
"<td align=right>",
|
|
i, c1->stream ? c1->stream->filename : "",
|
|
c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", p,
|
|
c1->protocol, http_state[c1->state]);
|
|
fmt_bytecount(pb, bitrate);
|
|
avio_printf(pb, "<td align=right>");
|
|
fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
|
|
avio_printf(pb, "<td align=right>");
|
|
fmt_bytecount(pb, c1->data_count);
|
|
avio_printf(pb, "\n");
|
|
c1 = c1->next;
|
|
}
|
|
avio_printf(pb, "</table>\n");
|
|
|
|
/* date */
|
|
ti = time(NULL);
|
|
p = ctime(&ti);
|
|
avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
|
|
avio_printf(pb, "</body>\n</html>\n");
|
|
|
|
len = avio_close_dyn_buf(pb, &c->pb_buffer);
|
|
c->buffer_ptr = c->pb_buffer;
|
|
c->buffer_end = c->pb_buffer + len;
|
|
}
|
|
|
|
static int open_input_stream(HTTPContext *c, const char *info)
|
|
{
|
|
char buf[128];
|
|
char input_filename[1024];
|
|
AVFormatContext *s = NULL;
|
|
int buf_size, i, ret;
|
|
int64_t stream_pos;
|
|
|
|
/* find file name */
|
|
if (c->stream->feed) {
|
|
strcpy(input_filename, c->stream->feed->feed_filename);
|
|
buf_size = FFM_PACKET_SIZE;
|
|
/* compute position (absolute time) */
|
|
if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
|
|
if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) {
|
|
http_log("Invalid date specification '%s' for stream\n", buf);
|
|
return ret;
|
|
}
|
|
} else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
|
|
int prebuffer = strtol(buf, 0, 10);
|
|
stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
|
|
} else
|
|
stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
|
|
} else {
|
|
strcpy(input_filename, c->stream->feed_filename);
|
|
buf_size = 0;
|
|
/* compute position (relative time) */
|
|
if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
|
|
if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) {
|
|
http_log("Invalid date specification '%s' for stream\n", buf);
|
|
return ret;
|
|
}
|
|
} else
|
|
stream_pos = 0;
|
|
}
|
|
if (!input_filename[0]) {
|
|
http_log("No filename was specified for stream\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* open stream */
|
|
ret = avformat_open_input(&s, input_filename, c->stream->ifmt,
|
|
&c->stream->in_opts);
|
|
if (ret < 0) {
|
|
http_log("Could not open input '%s': %s\n",
|
|
input_filename, av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
/* set buffer size */
|
|
if (buf_size > 0) {
|
|
ret = ffio_set_buf_size(s->pb, buf_size);
|
|
if (ret < 0) {
|
|
http_log("Failed to set buffer size\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
s->flags |= AVFMT_FLAG_GENPTS;
|
|
c->fmt_in = s;
|
|
if (strcmp(s->iformat->name, "ffm") &&
|
|
(ret = avformat_find_stream_info(c->fmt_in, NULL)) < 0) {
|
|
http_log("Could not find stream info for input '%s'\n", input_filename);
|
|
avformat_close_input(&s);
|
|
return ret;
|
|
}
|
|
|
|
/* choose stream as clock source (we favor the video stream if
|
|
* present) for packet sending */
|
|
c->pts_stream_index = 0;
|
|
for(i=0;i<c->stream->nb_streams;i++) {
|
|
if (c->pts_stream_index == 0 &&
|
|
c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
c->pts_stream_index = i;
|
|
}
|
|
}
|
|
|
|
if (c->fmt_in->iformat->read_seek)
|
|
av_seek_frame(c->fmt_in, -1, stream_pos, 0);
|
|
/* set the start time (needed for maxtime and RTP packet timing) */
|
|
c->start_time = cur_time;
|
|
c->first_pts = AV_NOPTS_VALUE;
|
|
return 0;
|
|
}
|
|
|
|
/* return the server clock (in us) */
|
|
static int64_t get_server_clock(HTTPContext *c)
|
|
{
|
|
/* compute current pts value from system time */
|
|
return (cur_time - c->start_time) * 1000;
|
|
}
|
|
|
|
/* return the estimated time (in us) at which the current packet must be sent */
|
|
static int64_t get_packet_send_clock(HTTPContext *c)
|
|
{
|
|
int bytes_left, bytes_sent, frame_bytes;
|
|
|
|
frame_bytes = c->cur_frame_bytes;
|
|
if (frame_bytes <= 0)
|
|
return c->cur_pts;
|
|
|
|
bytes_left = c->buffer_end - c->buffer_ptr;
|
|
bytes_sent = frame_bytes - bytes_left;
|
|
return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
|
|
}
|
|
|
|
|
|
static int http_prepare_data(HTTPContext *c)
|
|
{
|
|
int i, len, ret;
|
|
AVFormatContext *ctx;
|
|
|
|
av_freep(&c->pb_buffer);
|
|
switch(c->state) {
|
|
case HTTPSTATE_SEND_DATA_HEADER:
|
|
ctx = avformat_alloc_context();
|
|
if (!ctx)
|
|
return AVERROR(ENOMEM);
|
|
c->fmt_ctx = *ctx;
|
|
av_freep(&ctx);
|
|
av_dict_copy(&(c->fmt_ctx.metadata), c->stream->metadata, 0);
|
|
c->fmt_ctx.streams = av_mallocz_array(c->stream->nb_streams,
|
|
sizeof(AVStream *));
|
|
if (!c->fmt_ctx.streams)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for(i=0;i<c->stream->nb_streams;i++) {
|
|
AVStream *src;
|
|
c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
|
|
|
|
/* if file or feed, then just take streams from FFServerStream
|
|
* struct */
|
|
if (!c->stream->feed ||
|
|
c->stream->feed == c->stream)
|
|
src = c->stream->streams[i];
|
|
else
|
|
src = c->stream->feed->streams[c->stream->feed_streams[i]];
|
|
|
|
*(c->fmt_ctx.streams[i]) = *src;
|
|
c->fmt_ctx.streams[i]->priv_data = 0;
|
|
/* XXX: should be done in AVStream, not in codec */
|
|
c->fmt_ctx.streams[i]->codec->frame_number = 0;
|
|
}
|
|
/* set output format parameters */
|
|
c->fmt_ctx.oformat = c->stream->fmt;
|
|
c->fmt_ctx.nb_streams = c->stream->nb_streams;
|
|
|
|
c->got_key_frame = 0;
|
|
|
|
/* prepare header and save header data in a stream */
|
|
if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
|
|
/* XXX: potential leak */
|
|
return -1;
|
|
}
|
|
c->fmt_ctx.pb->seekable = 0;
|
|
|
|
/*
|
|
* HACK to avoid MPEG-PS muxer to spit many underflow errors
|
|
* Default value from FFmpeg
|
|
* Try to set it using configuration option
|
|
*/
|
|
c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
|
|
|
|
if ((ret = avformat_write_header(&c->fmt_ctx, NULL)) < 0) {
|
|
http_log("Error writing output header for stream '%s': %s\n",
|
|
c->stream->filename, av_err2str(ret));
|
|
return ret;
|
|
}
|
|
av_dict_free(&c->fmt_ctx.metadata);
|
|
|
|
len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
|
|
c->buffer_ptr = c->pb_buffer;
|
|
c->buffer_end = c->pb_buffer + len;
|
|
|
|
c->state = HTTPSTATE_SEND_DATA;
|
|
c->last_packet_sent = 0;
|
|
break;
|
|
case HTTPSTATE_SEND_DATA:
|
|
/* find a new packet */
|
|
/* read a packet from the input stream */
|
|
if (c->stream->feed)
|
|
ffm_set_write_index(c->fmt_in,
|
|
c->stream->feed->feed_write_index,
|
|
c->stream->feed->feed_size);
|
|
|
|
if (c->stream->max_time &&
|
|
c->stream->max_time + c->start_time - cur_time < 0)
|
|
/* We have timed out */
|
|
c->state = HTTPSTATE_SEND_DATA_TRAILER;
|
|
else {
|
|
AVPacket pkt;
|
|
redo:
|
|
ret = av_read_frame(c->fmt_in, &pkt);
|
|
if (ret < 0) {
|
|
if (c->stream->feed) {
|
|
/* if coming from feed, it means we reached the end of the
|
|
* ffm file, so must wait for more data */
|
|
c->state = HTTPSTATE_WAIT_FEED;
|
|
return 1; /* state changed */
|
|
}
|
|
if (ret == AVERROR(EAGAIN)) {
|
|
/* input not ready, come back later */
|
|
return 0;
|
|
}
|
|
if (c->stream->loop) {
|
|
avformat_close_input(&c->fmt_in);
|
|
if (open_input_stream(c, "") < 0)
|
|
goto no_loop;
|
|
goto redo;
|
|
} else {
|
|
no_loop:
|
|
/* must send trailer now because EOF or error */
|
|
c->state = HTTPSTATE_SEND_DATA_TRAILER;
|
|
}
|
|
} else {
|
|
int source_index = pkt.stream_index;
|
|
/* update first pts if needed */
|
|
if (c->first_pts == AV_NOPTS_VALUE) {
|
|
c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
|
|
c->start_time = cur_time;
|
|
}
|
|
/* send it to the appropriate stream */
|
|
if (c->stream->feed) {
|
|
/* if coming from a feed, select the right stream */
|
|
if (c->switch_pending) {
|
|
c->switch_pending = 0;
|
|
for(i=0;i<c->stream->nb_streams;i++) {
|
|
if (c->switch_feed_streams[i] == pkt.stream_index)
|
|
if (pkt.flags & AV_PKT_FLAG_KEY)
|
|
c->switch_feed_streams[i] = -1;
|
|
if (c->switch_feed_streams[i] >= 0)
|
|
c->switch_pending = 1;
|
|
}
|
|
}
|
|
for(i=0;i<c->stream->nb_streams;i++) {
|
|
if (c->stream->feed_streams[i] == pkt.stream_index) {
|
|
AVStream *st = c->fmt_in->streams[source_index];
|
|
pkt.stream_index = i;
|
|
if (pkt.flags & AV_PKT_FLAG_KEY &&
|
|
(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
|
|
c->stream->nb_streams == 1))
|
|
c->got_key_frame = 1;
|
|
if (!c->stream->send_on_key || c->got_key_frame)
|
|
goto send_it;
|
|
}
|
|
}
|
|
} else {
|
|
AVCodecContext *codec;
|
|
AVStream *ist, *ost;
|
|
send_it:
|
|
ist = c->fmt_in->streams[source_index];
|
|
/* specific handling for RTP: we use several
|
|
* output streams (one for each RTP connection).
|
|
* XXX: need more abstract handling */
|
|
if (c->is_packetized) {
|
|
/* compute send time and duration */
|
|
c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
|
|
c->cur_pts -= c->first_pts;
|
|
c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
|
|
/* find RTP context */
|
|
c->packet_stream_index = pkt.stream_index;
|
|
ctx = c->rtp_ctx[c->packet_stream_index];
|
|
if(!ctx) {
|
|
av_free_packet(&pkt);
|
|
break;
|
|
}
|
|
codec = ctx->streams[0]->codec;
|
|
/* only one stream per RTP connection */
|
|
pkt.stream_index = 0;
|
|
} else {
|
|
ctx = &c->fmt_ctx;
|
|
/* Fudge here */
|
|
codec = ctx->streams[pkt.stream_index]->codec;
|
|
}
|
|
|
|
if (c->is_packetized) {
|
|
int max_packet_size;
|
|
if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
|
|
max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
|
|
else
|
|
max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
|
|
ret = ffio_open_dyn_packet_buf(&ctx->pb,
|
|
max_packet_size);
|
|
} else
|
|
ret = avio_open_dyn_buf(&ctx->pb);
|
|
|
|
if (ret < 0) {
|
|
/* XXX: potential leak */
|
|
return -1;
|
|
}
|
|
ost = ctx->streams[pkt.stream_index];
|
|
|
|
ctx->pb->seekable = 0;
|
|
if (pkt.dts != AV_NOPTS_VALUE)
|
|
pkt.dts = av_rescale_q(pkt.dts, ist->time_base,
|
|
ost->time_base);
|
|
if (pkt.pts != AV_NOPTS_VALUE)
|
|
pkt.pts = av_rescale_q(pkt.pts, ist->time_base,
|
|
ost->time_base);
|
|
pkt.duration = av_rescale_q(pkt.duration, ist->time_base,
|
|
ost->time_base);
|
|
if ((ret = av_write_frame(ctx, &pkt)) < 0) {
|
|
http_log("Error writing frame to output for stream '%s': %s\n",
|
|
c->stream->filename, av_err2str(ret));
|
|
c->state = HTTPSTATE_SEND_DATA_TRAILER;
|
|
}
|
|
|
|
av_freep(&c->pb_buffer);
|
|
len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
|
|
c->cur_frame_bytes = len;
|
|
c->buffer_ptr = c->pb_buffer;
|
|
c->buffer_end = c->pb_buffer + len;
|
|
|
|
codec->frame_number++;
|
|
if (len == 0) {
|
|
av_free_packet(&pkt);
|
|
goto redo;
|
|
}
|
|
}
|
|
av_free_packet(&pkt);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
case HTTPSTATE_SEND_DATA_TRAILER:
|
|
/* last packet test ? */
|
|
if (c->last_packet_sent || c->is_packetized)
|
|
return -1;
|
|
ctx = &c->fmt_ctx;
|
|
/* prepare header */
|
|
if (avio_open_dyn_buf(&ctx->pb) < 0) {
|
|
/* XXX: potential leak */
|
|
return -1;
|
|
}
|
|
c->fmt_ctx.pb->seekable = 0;
|
|
av_write_trailer(ctx);
|
|
len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
|
|
c->buffer_ptr = c->pb_buffer;
|
|
c->buffer_end = c->pb_buffer + len;
|
|
|
|
c->last_packet_sent = 1;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* should convert the format at the same time */
|
|
/* send data starting at c->buffer_ptr to the output connection
|
|
* (either UDP or TCP)
|
|
*/
|
|
static int http_send_data(HTTPContext *c)
|
|
{
|
|
int len, ret;
|
|
|
|
for(;;) {
|
|
if (c->buffer_ptr >= c->buffer_end) {
|
|
ret = http_prepare_data(c);
|
|
if (ret < 0)
|
|
return -1;
|
|
else if (ret)
|
|
/* state change requested */
|
|
break;
|
|
} else {
|
|
if (c->is_packetized) {
|
|
/* RTP data output */
|
|
len = c->buffer_end - c->buffer_ptr;
|
|
if (len < 4) {
|
|
/* fail safe - should never happen */
|
|
fail1:
|
|
c->buffer_ptr = c->buffer_end;
|
|
return 0;
|
|
}
|
|
len = (c->buffer_ptr[0] << 24) |
|
|
(c->buffer_ptr[1] << 16) |
|
|
(c->buffer_ptr[2] << 8) |
|
|
(c->buffer_ptr[3]);
|
|
if (len > (c->buffer_end - c->buffer_ptr))
|
|
goto fail1;
|
|
if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
|
|
/* nothing to send yet: we can wait */
|
|
return 0;
|
|
}
|
|
|
|
c->data_count += len;
|
|
update_datarate(&c->datarate, c->data_count);
|
|
if (c->stream)
|
|
c->stream->bytes_served += len;
|
|
|
|
if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
|
|
/* RTP packets are sent inside the RTSP TCP connection */
|
|
AVIOContext *pb;
|
|
int interleaved_index, size;
|
|
uint8_t header[4];
|
|
HTTPContext *rtsp_c;
|
|
|
|
rtsp_c = c->rtsp_c;
|
|
/* if no RTSP connection left, error */
|
|
if (!rtsp_c)
|
|
return -1;
|
|
/* if already sending something, then wait. */
|
|
if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
|
|
break;
|
|
if (avio_open_dyn_buf(&pb) < 0)
|
|
goto fail1;
|
|
interleaved_index = c->packet_stream_index * 2;
|
|
/* RTCP packets are sent at odd indexes */
|
|
if (c->buffer_ptr[1] == 200)
|
|
interleaved_index++;
|
|
/* write RTSP TCP header */
|
|
header[0] = '$';
|
|
header[1] = interleaved_index;
|
|
header[2] = len >> 8;
|
|
header[3] = len;
|
|
avio_write(pb, header, 4);
|
|
/* write RTP packet data */
|
|
c->buffer_ptr += 4;
|
|
avio_write(pb, c->buffer_ptr, len);
|
|
size = avio_close_dyn_buf(pb, &c->packet_buffer);
|
|
/* prepare asynchronous TCP sending */
|
|
rtsp_c->packet_buffer_ptr = c->packet_buffer;
|
|
rtsp_c->packet_buffer_end = c->packet_buffer + size;
|
|
c->buffer_ptr += len;
|
|
|
|
/* send everything we can NOW */
|
|
len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
|
|
rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
|
|
if (len > 0)
|
|
rtsp_c->packet_buffer_ptr += len;
|
|
if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
|
|
/* if we could not send all the data, we will
|
|
* send it later, so a new state is needed to
|
|
* "lock" the RTSP TCP connection */
|
|
rtsp_c->state = RTSPSTATE_SEND_PACKET;
|
|
break;
|
|
} else
|
|
/* all data has been sent */
|
|
av_freep(&c->packet_buffer);
|
|
} else {
|
|
/* send RTP packet directly in UDP */
|
|
c->buffer_ptr += 4;
|
|
ffurl_write(c->rtp_handles[c->packet_stream_index],
|
|
c->buffer_ptr, len);
|
|
c->buffer_ptr += len;
|
|
/* here we continue as we can send several packets
|
|
* per 10 ms slot */
|
|
}
|
|
} else {
|
|
/* TCP data output */
|
|
len = send(c->fd, c->buffer_ptr,
|
|
c->buffer_end - c->buffer_ptr, 0);
|
|
if (len < 0) {
|
|
if (ff_neterrno() != AVERROR(EAGAIN) &&
|
|
ff_neterrno() != AVERROR(EINTR))
|
|
/* error : close connection */
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
c->buffer_ptr += len;
|
|
|
|
c->data_count += len;
|
|
update_datarate(&c->datarate, c->data_count);
|
|
if (c->stream)
|
|
c->stream->bytes_served += len;
|
|
break;
|
|
}
|
|
}
|
|
} /* for(;;) */
|
|
return 0;
|
|
}
|
|
|
|
static int http_start_receive_data(HTTPContext *c)
|
|
{
|
|
int fd;
|
|
int ret;
|
|
|
|
if (c->stream->feed_opened) {
|
|
http_log("Stream feed '%s' was not opened\n",
|
|
c->stream->feed_filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* Don't permit writing to this one */
|
|
if (c->stream->readonly) {
|
|
http_log("Cannot write to read-only file '%s'\n",
|
|
c->stream->feed_filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* open feed */
|
|
fd = open(c->stream->feed_filename, O_RDWR);
|
|
if (fd < 0) {
|
|
ret = AVERROR(errno);
|
|
http_log("Could not open feed file '%s': %s\n",
|
|
c->stream->feed_filename, strerror(errno));
|
|
return ret;
|
|
}
|
|
c->feed_fd = fd;
|
|
|
|
if (c->stream->truncate) {
|
|
/* truncate feed file */
|
|
ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
|
|
http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
|
|
if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
|
|
ret = AVERROR(errno);
|
|
http_log("Error truncating feed file '%s': %s\n",
|
|
c->stream->feed_filename, strerror(errno));
|
|
return ret;
|
|
}
|
|
} else {
|
|
ret = ffm_read_write_index(fd);
|
|
if (ret < 0) {
|
|
http_log("Error reading write index from feed file '%s': %s\n",
|
|
c->stream->feed_filename, strerror(errno));
|
|
return ret;
|
|
}
|
|
c->stream->feed_write_index = ret;
|
|
}
|
|
|
|
c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd),
|
|
FFM_PACKET_SIZE);
|
|
c->stream->feed_size = lseek(fd, 0, SEEK_END);
|
|
lseek(fd, 0, SEEK_SET);
|
|
|
|
/* init buffer input */
|
|
c->buffer_ptr = c->buffer;
|
|
c->buffer_end = c->buffer + FFM_PACKET_SIZE;
|
|
c->stream->feed_opened = 1;
|
|
c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
|
|
return 0;
|
|
}
|
|
|
|
static int http_receive_data(HTTPContext *c)
|
|
{
|
|
HTTPContext *c1;
|
|
int len, loop_run = 0;
|
|
|
|
while (c->chunked_encoding && !c->chunk_size &&
|
|
c->buffer_end > c->buffer_ptr) {
|
|
/* read chunk header, if present */
|
|
len = recv(c->fd, c->buffer_ptr, 1, 0);
|
|
|
|
if (len < 0) {
|
|
if (ff_neterrno() != AVERROR(EAGAIN) &&
|
|
ff_neterrno() != AVERROR(EINTR))
|
|
/* error : close connection */
|
|
goto fail;
|
|
return 0;
|
|
} else if (len == 0) {
|
|
/* end of connection : close it */
|
|
goto fail;
|
|
} else if (c->buffer_ptr - c->buffer >= 2 &&
|
|
!memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
|
|
c->chunk_size = strtol(c->buffer, 0, 16);
|
|
if (c->chunk_size == 0) // end of stream
|
|
goto fail;
|
|
c->buffer_ptr = c->buffer;
|
|
break;
|
|
} else if (++loop_run > 10)
|
|
/* no chunk header, abort */
|
|
goto fail;
|
|
else
|
|
c->buffer_ptr++;
|
|
}
|
|
|
|
if (c->buffer_end > c->buffer_ptr) {
|
|
len = recv(c->fd, c->buffer_ptr,
|
|
FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
|
|
if (len < 0) {
|
|
if (ff_neterrno() != AVERROR(EAGAIN) &&
|
|
ff_neterrno() != AVERROR(EINTR))
|
|
/* error : close connection */
|
|
goto fail;
|
|
} else if (len == 0)
|
|
/* end of connection : close it */
|
|
goto fail;
|
|
else {
|
|
c->chunk_size -= len;
|
|
c->buffer_ptr += len;
|
|
c->data_count += len;
|
|
update_datarate(&c->datarate, c->data_count);
|
|
}
|
|
}
|
|
|
|
if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
|
|
if (c->buffer[0] != 'f' ||
|
|
c->buffer[1] != 'm') {
|
|
http_log("Feed stream has become desynchronized -- disconnecting\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (c->buffer_ptr >= c->buffer_end) {
|
|
FFServerStream *feed = c->stream;
|
|
/* a packet has been received : write it in the store, except
|
|
* if header */
|
|
if (c->data_count > FFM_PACKET_SIZE) {
|
|
/* XXX: use llseek or url_seek
|
|
* XXX: Should probably fail? */
|
|
if (lseek(c->feed_fd, feed->feed_write_index, SEEK_SET) == -1)
|
|
http_log("Seek to %"PRId64" failed\n", feed->feed_write_index);
|
|
|
|
if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
|
|
http_log("Error writing to feed file: %s\n", strerror(errno));
|
|
goto fail;
|
|
}
|
|
|
|
feed->feed_write_index += FFM_PACKET_SIZE;
|
|
/* update file size */
|
|
if (feed->feed_write_index > c->stream->feed_size)
|
|
feed->feed_size = feed->feed_write_index;
|
|
|
|
/* handle wrap around if max file size reached */
|
|
if (c->stream->feed_max_size &&
|
|
feed->feed_write_index >= c->stream->feed_max_size)
|
|
feed->feed_write_index = FFM_PACKET_SIZE;
|
|
|
|
/* write index */
|
|
if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
|
|
http_log("Error writing index to feed file: %s\n",
|
|
strerror(errno));
|
|
goto fail;
|
|
}
|
|
|
|
/* wake up any waiting connections */
|
|
for(c1 = first_http_ctx; c1; c1 = c1->next) {
|
|
if (c1->state == HTTPSTATE_WAIT_FEED &&
|
|
c1->stream->feed == c->stream->feed)
|
|
c1->state = HTTPSTATE_SEND_DATA;
|
|
}
|
|
} else {
|
|
/* We have a header in our hands that contains useful data */
|
|
AVFormatContext *s = avformat_alloc_context();
|
|
AVIOContext *pb;
|
|
AVInputFormat *fmt_in;
|
|
int i;
|
|
|
|
if (!s)
|
|
goto fail;
|
|
|
|
/* use feed output format name to find corresponding input format */
|
|
fmt_in = av_find_input_format(feed->fmt->name);
|
|
if (!fmt_in)
|
|
goto fail;
|
|
|
|
pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
|
|
0, NULL, NULL, NULL, NULL);
|
|
if (!pb)
|
|
goto fail;
|
|
|
|
pb->seekable = 0;
|
|
|
|
s->pb = pb;
|
|
if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
|
|
av_freep(&pb);
|
|
goto fail;
|
|
}
|
|
|
|
/* Now we have the actual streams */
|
|
if (s->nb_streams != feed->nb_streams) {
|
|
avformat_close_input(&s);
|
|
av_freep(&pb);
|
|
http_log("Feed '%s' stream number does not match registered feed\n",
|
|
c->stream->feed_filename);
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *fst = feed->streams[i];
|
|
AVStream *st = s->streams[i];
|
|
avcodec_copy_context(fst->codec, st->codec);
|
|
}
|
|
|
|
avformat_close_input(&s);
|
|
av_freep(&pb);
|
|
}
|
|
c->buffer_ptr = c->buffer;
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
c->stream->feed_opened = 0;
|
|
close(c->feed_fd);
|
|
/* wake up any waiting connections to stop waiting for feed */
|
|
for(c1 = first_http_ctx; c1; c1 = c1->next) {
|
|
if (c1->state == HTTPSTATE_WAIT_FEED &&
|
|
c1->stream->feed == c->stream->feed)
|
|
c1->state = HTTPSTATE_SEND_DATA_TRAILER;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/********************************************************************/
|
|
/* RTSP handling */
|
|
|
|
static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
|
|
{
|
|
const char *str;
|
|
time_t ti;
|
|
struct tm *tm;
|
|
char buf2[32];
|
|
|
|
str = RTSP_STATUS_CODE2STRING(error_number);
|
|
if (!str)
|
|
str = "Unknown Error";
|
|
|
|
avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
|
|
avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
|
|
|
|
/* output GMT time */
|
|
ti = time(NULL);
|
|
tm = gmtime(&ti);
|
|
strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
|
|
avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
|
|
}
|
|
|
|
static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
|
|
{
|
|
rtsp_reply_header(c, error_number);
|
|
avio_printf(c->pb, "\r\n");
|
|
}
|
|
|
|
static int rtsp_parse_request(HTTPContext *c)
|
|
{
|
|
const char *p, *p1, *p2;
|
|
char cmd[32];
|
|
char url[1024];
|
|
char protocol[32];
|
|
char line[1024];
|
|
int len;
|
|
RTSPMessageHeader header1 = { 0 }, *header = &header1;
|
|
|
|
c->buffer_ptr[0] = '\0';
|
|
p = c->buffer;
|
|
|
|
get_word(cmd, sizeof(cmd), &p);
|
|
get_word(url, sizeof(url), &p);
|
|
get_word(protocol, sizeof(protocol), &p);
|
|
|
|
av_strlcpy(c->method, cmd, sizeof(c->method));
|
|
av_strlcpy(c->url, url, sizeof(c->url));
|
|
av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
|
|
|
|
if (avio_open_dyn_buf(&c->pb) < 0) {
|
|
/* XXX: cannot do more */
|
|
c->pb = NULL; /* safety */
|
|
return -1;
|
|
}
|
|
|
|
/* check version name */
|
|
if (strcmp(protocol, "RTSP/1.0")) {
|
|
rtsp_reply_error(c, RTSP_STATUS_VERSION);
|
|
goto the_end;
|
|
}
|
|
|
|
/* parse each header line */
|
|
/* skip to next line */
|
|
while (*p != '\n' && *p != '\0')
|
|
p++;
|
|
if (*p == '\n')
|
|
p++;
|
|
while (*p != '\0') {
|
|
p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
|
|
if (!p1)
|
|
break;
|
|
p2 = p1;
|
|
if (p2 > p && p2[-1] == '\r')
|
|
p2--;
|
|
/* skip empty line */
|
|
if (p2 == p)
|
|
break;
|
|
len = p2 - p;
|
|
if (len > sizeof(line) - 1)
|
|
len = sizeof(line) - 1;
|
|
memcpy(line, p, len);
|
|
line[len] = '\0';
|
|
ff_rtsp_parse_line(header, line, NULL, NULL);
|
|
p = p1 + 1;
|
|
}
|
|
|
|
/* handle sequence number */
|
|
c->seq = header->seq;
|
|
|
|
if (!strcmp(cmd, "DESCRIBE"))
|
|
rtsp_cmd_describe(c, url);
|
|
else if (!strcmp(cmd, "OPTIONS"))
|
|
rtsp_cmd_options(c, url);
|
|
else if (!strcmp(cmd, "SETUP"))
|
|
rtsp_cmd_setup(c, url, header);
|
|
else if (!strcmp(cmd, "PLAY"))
|
|
rtsp_cmd_play(c, url, header);
|
|
else if (!strcmp(cmd, "PAUSE"))
|
|
rtsp_cmd_interrupt(c, url, header, 1);
|
|
else if (!strcmp(cmd, "TEARDOWN"))
|
|
rtsp_cmd_interrupt(c, url, header, 0);
|
|
else
|
|
rtsp_reply_error(c, RTSP_STATUS_METHOD);
|
|
|
|
the_end:
|
|
len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
|
|
c->pb = NULL; /* safety */
|
|
if (len < 0)
|
|
/* XXX: cannot do more */
|
|
return -1;
|
|
|
|
c->buffer_ptr = c->pb_buffer;
|
|
c->buffer_end = c->pb_buffer + len;
|
|
c->state = RTSPSTATE_SEND_REPLY;
|
|
return 0;
|
|
}
|
|
|
|
static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer,
|
|
struct in_addr my_ip)
|
|
{
|
|
AVFormatContext *avc;
|
|
AVStream *avs = NULL;
|
|
AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
|
|
AVDictionaryEntry *entry = av_dict_get(stream->metadata, "title", NULL, 0);
|
|
int i;
|
|
|
|
*pbuffer = NULL;
|
|
|
|
avc = avformat_alloc_context();
|
|
if (!avc || !rtp_format)
|
|
return -1;
|
|
|
|
avc->oformat = rtp_format;
|
|
av_dict_set(&avc->metadata, "title",
|
|
entry ? entry->value : "No Title", 0);
|
|
avc->nb_streams = stream->nb_streams;
|
|
if (stream->is_multicast) {
|
|
snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
|
|
inet_ntoa(stream->multicast_ip),
|
|
stream->multicast_port, stream->multicast_ttl);
|
|
} else
|
|
snprintf(avc->filename, 1024, "rtp://0.0.0.0");
|
|
|
|
avc->streams = av_malloc_array(avc->nb_streams, sizeof(*avc->streams));
|
|
if (!avc->streams)
|
|
goto sdp_done;
|
|
|
|
avs = av_malloc_array(avc->nb_streams, sizeof(*avs));
|
|
if (!avs)
|
|
goto sdp_done;
|
|
|
|
for(i = 0; i < stream->nb_streams; i++) {
|
|
avc->streams[i] = &avs[i];
|
|
avc->streams[i]->codec = stream->streams[i]->codec;
|
|
}
|
|
*pbuffer = av_mallocz(2048);
|
|
if (!*pbuffer)
|
|
goto sdp_done;
|
|
av_sdp_create(&avc, 1, *pbuffer, 2048);
|
|
|
|
sdp_done:
|
|
av_freep(&avc->streams);
|
|
av_dict_free(&avc->metadata);
|
|
av_free(avc);
|
|
av_free(avs);
|
|
|
|
return *pbuffer ? strlen(*pbuffer) : AVERROR(ENOMEM);
|
|
}
|
|
|
|
static void rtsp_cmd_options(HTTPContext *c, const char *url)
|
|
{
|
|
/* rtsp_reply_header(c, RTSP_STATUS_OK); */
|
|
avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
|
|
avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
|
|
avio_printf(c->pb, "Public: %s\r\n",
|
|
"OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
|
|
avio_printf(c->pb, "\r\n");
|
|
}
|
|
|
|
static void rtsp_cmd_describe(HTTPContext *c, const char *url)
|
|
{
|
|
FFServerStream *stream;
|
|
char path1[1024];
|
|
const char *path;
|
|
uint8_t *content;
|
|
int content_length;
|
|
socklen_t len;
|
|
struct sockaddr_in my_addr;
|
|
|
|
/* find which URL is asked */
|
|
av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
|
|
path = path1;
|
|
if (*path == '/')
|
|
path++;
|
|
|
|
for(stream = config.first_stream; stream; stream = stream->next) {
|
|
if (!stream->is_feed &&
|
|
stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
|
|
!strcmp(path, stream->filename)) {
|
|
goto found;
|
|
}
|
|
}
|
|
/* no stream found */
|
|
rtsp_reply_error(c, RTSP_STATUS_NOT_FOUND);
|
|
return;
|
|
|
|
found:
|
|
/* prepare the media description in SDP format */
|
|
|
|
/* get the host IP */
|
|
len = sizeof(my_addr);
|
|
getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
|
|
content_length = prepare_sdp_description(stream, &content,
|
|
my_addr.sin_addr);
|
|
if (content_length < 0) {
|
|
rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
|
|
return;
|
|
}
|
|
rtsp_reply_header(c, RTSP_STATUS_OK);
|
|
avio_printf(c->pb, "Content-Base: %s/\r\n", url);
|
|
avio_printf(c->pb, "Content-Type: application/sdp\r\n");
|
|
avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
|
|
avio_printf(c->pb, "\r\n");
|
|
avio_write(c->pb, content, content_length);
|
|
av_free(content);
|
|
}
|
|
|
|
static HTTPContext *find_rtp_session(const char *session_id)
|
|
{
|
|
HTTPContext *c;
|
|
|
|
if (session_id[0] == '\0')
|
|
return NULL;
|
|
|
|
for(c = first_http_ctx; c; c = c->next) {
|
|
if (!strcmp(c->session_id, session_id))
|
|
return c;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
|
|
{
|
|
RTSPTransportField *th;
|
|
int i;
|
|
|
|
for(i=0;i<h->nb_transports;i++) {
|
|
th = &h->transports[i];
|
|
if (th->lower_transport == lower_transport)
|
|
return th;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void rtsp_cmd_setup(HTTPContext *c, const char *url,
|
|
RTSPMessageHeader *h)
|
|
{
|
|
FFServerStream *stream;
|
|
int stream_index, rtp_port, rtcp_port;
|
|
char buf[1024];
|
|
char path1[1024];
|
|
const char *path;
|
|
HTTPContext *rtp_c;
|
|
RTSPTransportField *th;
|
|
struct sockaddr_in dest_addr;
|
|
RTSPActionServerSetup setup;
|
|
|
|
/* find which URL is asked */
|
|
av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
|
|
path = path1;
|
|
if (*path == '/')
|
|
path++;
|
|
|
|
/* now check each stream */
|
|
for(stream = config.first_stream; stream; stream = stream->next) {
|
|
if (stream->is_feed || !stream->fmt ||
|
|
strcmp(stream->fmt->name, "rtp")) {
|
|
continue;
|
|
}
|
|
/* accept aggregate filenames only if single stream */
|
|
if (!strcmp(path, stream->filename)) {
|
|
if (stream->nb_streams != 1) {
|
|
rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
|
|
return;
|
|
}
|
|
stream_index = 0;
|
|
goto found;
|
|
}
|
|
|
|
for(stream_index = 0; stream_index < stream->nb_streams;
|
|
stream_index++) {
|
|
snprintf(buf, sizeof(buf), "%s/streamid=%d",
|
|
stream->filename, stream_index);
|
|
if (!strcmp(path, buf))
|
|
goto found;
|
|
}
|
|
}
|
|
/* no stream found */
|
|
rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
|
|
return;
|
|
found:
|
|
|
|
/* generate session id if needed */
|
|
if (h->session_id[0] == '\0') {
|
|
unsigned random0 = av_lfg_get(&random_state);
|
|
unsigned random1 = av_lfg_get(&random_state);
|
|
snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
|
|
random0, random1);
|
|
}
|
|
|
|
/* find RTP session, and create it if none found */
|
|
rtp_c = find_rtp_session(h->session_id);
|
|
if (!rtp_c) {
|
|
/* always prefer UDP */
|
|
th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
|
|
if (!th) {
|
|
th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
|
|
if (!th) {
|
|
rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
|
|
return;
|
|
}
|
|
}
|
|
|
|
rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
|
|
th->lower_transport);
|
|
if (!rtp_c) {
|
|
rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
|
|
return;
|
|
}
|
|
|
|
/* open input stream */
|
|
if (open_input_stream(rtp_c, "") < 0) {
|
|
rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* test if stream is OK (test needed because several SETUP needs
|
|
* to be done for a given file) */
|
|
if (rtp_c->stream != stream) {
|
|
rtsp_reply_error(c, RTSP_STATUS_SERVICE);
|
|
return;
|
|
}
|
|
|
|
/* test if stream is already set up */
|
|
if (rtp_c->rtp_ctx[stream_index]) {
|
|
rtsp_reply_error(c, RTSP_STATUS_STATE);
|
|
return;
|
|
}
|
|
|
|
/* check transport */
|
|
th = find_transport(h, rtp_c->rtp_protocol);
|
|
if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
|
|
th->client_port_min <= 0)) {
|
|
rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
|
|
return;
|
|
}
|
|
|
|
/* setup default options */
|
|
setup.transport_option[0] = '\0';
|
|
dest_addr = rtp_c->from_addr;
|
|
dest_addr.sin_port = htons(th->client_port_min);
|
|
|
|
/* setup stream */
|
|
if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
|
|
rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
|
|
return;
|
|
}
|
|
|
|
/* now everything is OK, so we can send the connection parameters */
|
|
rtsp_reply_header(c, RTSP_STATUS_OK);
|
|
/* session ID */
|
|
avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
|
|
|
|
switch(rtp_c->rtp_protocol) {
|
|
case RTSP_LOWER_TRANSPORT_UDP:
|
|
rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
|
|
rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
|
|
avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
|
|
"client_port=%d-%d;server_port=%d-%d",
|
|
th->client_port_min, th->client_port_max,
|
|
rtp_port, rtcp_port);
|
|
break;
|
|
case RTSP_LOWER_TRANSPORT_TCP:
|
|
avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
|
|
stream_index * 2, stream_index * 2 + 1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (setup.transport_option[0] != '\0')
|
|
avio_printf(c->pb, ";%s", setup.transport_option);
|
|
avio_printf(c->pb, "\r\n");
|
|
|
|
|
|
avio_printf(c->pb, "\r\n");
|
|
}
|
|
|
|
|
|
/**
|
|
* find an RTP connection by using the session ID. Check consistency
|
|
* with filename
|
|
*/
|
|
static HTTPContext *find_rtp_session_with_url(const char *url,
|
|
const char *session_id)
|
|
{
|
|
HTTPContext *rtp_c;
|
|
char path1[1024];
|
|
const char *path;
|
|
char buf[1024];
|
|
int s, len;
|
|
|
|
rtp_c = find_rtp_session(session_id);
|
|
if (!rtp_c)
|
|
return NULL;
|
|
|
|
/* find which URL is asked */
|
|
av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
|
|
path = path1;
|
|
if (*path == '/')
|
|
path++;
|
|
if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
|
|
for(s=0; s<rtp_c->stream->nb_streams; ++s) {
|
|
snprintf(buf, sizeof(buf), "%s/streamid=%d",
|
|
rtp_c->stream->filename, s);
|
|
if(!strncmp(path, buf, sizeof(buf)))
|
|
/* XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE
|
|
* if nb_streams>1? */
|
|
return rtp_c;
|
|
}
|
|
len = strlen(path);
|
|
if (len > 0 && path[len - 1] == '/' &&
|
|
!strncmp(path, rtp_c->stream->filename, len - 1))
|
|
return rtp_c;
|
|
return NULL;
|
|
}
|
|
|
|
static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
|
|
{
|
|
HTTPContext *rtp_c;
|
|
|
|
rtp_c = find_rtp_session_with_url(url, h->session_id);
|
|
if (!rtp_c) {
|
|
rtsp_reply_error(c, RTSP_STATUS_SESSION);
|
|
return;
|
|
}
|
|
|
|
if (rtp_c->state != HTTPSTATE_SEND_DATA &&
|
|
rtp_c->state != HTTPSTATE_WAIT_FEED &&
|
|
rtp_c->state != HTTPSTATE_READY) {
|
|
rtsp_reply_error(c, RTSP_STATUS_STATE);
|
|
return;
|
|
}
|
|
|
|
rtp_c->state = HTTPSTATE_SEND_DATA;
|
|
|
|
/* now everything is OK, so we can send the connection parameters */
|
|
rtsp_reply_header(c, RTSP_STATUS_OK);
|
|
/* session ID */
|
|
avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
|
|
avio_printf(c->pb, "\r\n");
|
|
}
|
|
|
|
static void rtsp_cmd_interrupt(HTTPContext *c, const char *url,
|
|
RTSPMessageHeader *h, int pause_only)
|
|
{
|
|
HTTPContext *rtp_c;
|
|
|
|
rtp_c = find_rtp_session_with_url(url, h->session_id);
|
|
if (!rtp_c) {
|
|
rtsp_reply_error(c, RTSP_STATUS_SESSION);
|
|
return;
|
|
}
|
|
|
|
if (pause_only) {
|
|
if (rtp_c->state != HTTPSTATE_SEND_DATA &&
|
|
rtp_c->state != HTTPSTATE_WAIT_FEED) {
|
|
rtsp_reply_error(c, RTSP_STATUS_STATE);
|
|
return;
|
|
}
|
|
rtp_c->state = HTTPSTATE_READY;
|
|
rtp_c->first_pts = AV_NOPTS_VALUE;
|
|
}
|
|
|
|
/* now everything is OK, so we can send the connection parameters */
|
|
rtsp_reply_header(c, RTSP_STATUS_OK);
|
|
/* session ID */
|
|
avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
|
|
avio_printf(c->pb, "\r\n");
|
|
|
|
if (!pause_only)
|
|
close_connection(rtp_c);
|
|
}
|
|
|
|
/********************************************************************/
|
|
/* RTP handling */
|
|
|
|
static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
|
|
FFServerStream *stream,
|
|
const char *session_id,
|
|
enum RTSPLowerTransport rtp_protocol)
|
|
{
|
|
HTTPContext *c = NULL;
|
|
const char *proto_str;
|
|
|
|
/* XXX: should output a warning page when coming
|
|
* close to the connection limit */
|
|
if (nb_connections >= config.nb_max_connections)
|
|
goto fail;
|
|
|
|
/* add a new connection */
|
|
c = av_mallocz(sizeof(HTTPContext));
|
|
if (!c)
|
|
goto fail;
|
|
|
|
c->fd = -1;
|
|
c->poll_entry = NULL;
|
|
c->from_addr = *from_addr;
|
|
c->buffer_size = IOBUFFER_INIT_SIZE;
|
|
c->buffer = av_malloc(c->buffer_size);
|
|
if (!c->buffer)
|
|
goto fail;
|
|
nb_connections++;
|
|
c->stream = stream;
|
|
av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
|
|
c->state = HTTPSTATE_READY;
|
|
c->is_packetized = 1;
|
|
c->rtp_protocol = rtp_protocol;
|
|
|
|
/* protocol is shown in statistics */
|
|
switch(c->rtp_protocol) {
|
|
case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
|
|
proto_str = "MCAST";
|
|
break;
|
|
case RTSP_LOWER_TRANSPORT_UDP:
|
|
proto_str = "UDP";
|
|
break;
|
|
case RTSP_LOWER_TRANSPORT_TCP:
|
|
proto_str = "TCP";
|
|
break;
|
|
default:
|
|
proto_str = "???";
|
|
break;
|
|
}
|
|
av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
|
|
av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
|
|
|
|
current_bandwidth += stream->bandwidth;
|
|
|
|
c->next = first_http_ctx;
|
|
first_http_ctx = c;
|
|
return c;
|
|
|
|
fail:
|
|
if (c) {
|
|
av_freep(&c->buffer);
|
|
av_free(c);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* add a new RTP stream in an RTP connection (used in RTSP SETUP
|
|
* command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
|
|
* used.
|
|
*/
|
|
static int rtp_new_av_stream(HTTPContext *c,
|
|
int stream_index, struct sockaddr_in *dest_addr,
|
|
HTTPContext *rtsp_c)
|
|
{
|
|
AVFormatContext *ctx;
|
|
AVStream *st;
|
|
char *ipaddr;
|
|
URLContext *h = NULL;
|
|
uint8_t *dummy_buf;
|
|
int max_packet_size;
|
|
|
|
/* now we can open the relevant output stream */
|
|
ctx = avformat_alloc_context();
|
|
if (!ctx)
|
|
return -1;
|
|
ctx->oformat = av_guess_format("rtp", NULL, NULL);
|
|
|
|
st = av_mallocz(sizeof(AVStream));
|
|
if (!st)
|
|
goto fail;
|
|
ctx->nb_streams = 1;
|
|
ctx->streams = av_mallocz_array(ctx->nb_streams, sizeof(AVStream *));
|
|
if (!ctx->streams)
|
|
goto fail;
|
|
ctx->streams[0] = st;
|
|
|
|
if (!c->stream->feed ||
|
|
c->stream->feed == c->stream)
|
|
memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
|
|
else
|
|
memcpy(st,
|
|
c->stream->feed->streams[c->stream->feed_streams[stream_index]],
|
|
sizeof(AVStream));
|
|
st->priv_data = NULL;
|
|
|
|
/* build destination RTP address */
|
|
ipaddr = inet_ntoa(dest_addr->sin_addr);
|
|
|
|
switch(c->rtp_protocol) {
|
|
case RTSP_LOWER_TRANSPORT_UDP:
|
|
case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
|
|
/* RTP/UDP case */
|
|
|
|
/* XXX: also pass as parameter to function ? */
|
|
if (c->stream->is_multicast) {
|
|
int ttl;
|
|
ttl = c->stream->multicast_ttl;
|
|
if (!ttl)
|
|
ttl = 16;
|
|
snprintf(ctx->filename, sizeof(ctx->filename),
|
|
"rtp://%s:%d?multicast=1&ttl=%d",
|
|
ipaddr, ntohs(dest_addr->sin_port), ttl);
|
|
} else {
|
|
snprintf(ctx->filename, sizeof(ctx->filename),
|
|
"rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
|
|
}
|
|
|
|
if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
|
|
goto fail;
|
|
c->rtp_handles[stream_index] = h;
|
|
max_packet_size = h->max_packet_size;
|
|
break;
|
|
case RTSP_LOWER_TRANSPORT_TCP:
|
|
/* RTP/TCP case */
|
|
c->rtsp_c = rtsp_c;
|
|
max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
|
|
break;
|
|
default:
|
|
goto fail;
|
|
}
|
|
|
|
http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
|
|
ipaddr, ntohs(dest_addr->sin_port),
|
|
c->stream->filename, stream_index, c->protocol);
|
|
|
|
/* normally, no packets should be output here, but the packet size may
|
|
* be checked */
|
|
if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0)
|
|
/* XXX: close stream */
|
|
goto fail;
|
|
|
|
if (avformat_write_header(ctx, NULL) < 0) {
|
|
fail:
|
|
if (h)
|
|
ffurl_close(h);
|
|
av_free(st);
|
|
av_free(ctx);
|
|
return -1;
|
|
}
|
|
avio_close_dyn_buf(ctx->pb, &dummy_buf);
|
|
av_free(dummy_buf);
|
|
|
|
c->rtp_ctx[stream_index] = ctx;
|
|
return 0;
|
|
}
|
|
|
|
/********************************************************************/
|
|
/* ffserver initialization */
|
|
|
|
static AVStream *add_av_stream1(FFServerStream *stream,
|
|
AVCodecContext *codec, int copy)
|
|
{
|
|
AVStream *fst;
|
|
|
|
if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
|
|
return NULL;
|
|
|
|
fst = av_mallocz(sizeof(AVStream));
|
|
if (!fst)
|
|
return NULL;
|
|
if (copy) {
|
|
fst->codec = avcodec_alloc_context3(codec->codec);
|
|
if (!fst->codec) {
|
|
av_free(fst);
|
|
return NULL;
|
|
}
|
|
avcodec_copy_context(fst->codec, codec);
|
|
} else
|
|
/* live streams must use the actual feed's codec since it may be
|
|
* updated later to carry extradata needed by them.
|
|
*/
|
|
fst->codec = codec;
|
|
|
|
fst->priv_data = av_mallocz(sizeof(FeedData));
|
|
fst->index = stream->nb_streams;
|
|
avpriv_set_pts_info(fst, 33, 1, 90000);
|
|
fst->sample_aspect_ratio = codec->sample_aspect_ratio;
|
|
stream->streams[stream->nb_streams++] = fst;
|
|
return fst;
|
|
}
|
|
|
|
/* return the stream number in the feed */
|
|
static int add_av_stream(FFServerStream *feed, AVStream *st)
|
|
{
|
|
AVStream *fst;
|
|
AVCodecContext *av, *av1;
|
|
int i;
|
|
|
|
av = st->codec;
|
|
for(i=0;i<feed->nb_streams;i++) {
|
|
av1 = feed->streams[i]->codec;
|
|
if (av1->codec_id == av->codec_id &&
|
|
av1->codec_type == av->codec_type &&
|
|
av1->bit_rate == av->bit_rate) {
|
|
|
|
switch(av->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
if (av1->channels == av->channels &&
|
|
av1->sample_rate == av->sample_rate)
|
|
return i;
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
if (av1->width == av->width &&
|
|
av1->height == av->height &&
|
|
av1->time_base.den == av->time_base.den &&
|
|
av1->time_base.num == av->time_base.num &&
|
|
av1->gop_size == av->gop_size)
|
|
return i;
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
}
|
|
}
|
|
|
|
fst = add_av_stream1(feed, av, 0);
|
|
if (!fst)
|
|
return -1;
|
|
if (av_stream_get_recommended_encoder_configuration(st))
|
|
av_stream_set_recommended_encoder_configuration(fst,
|
|
av_strdup(av_stream_get_recommended_encoder_configuration(st)));
|
|
return feed->nb_streams - 1;
|
|
}
|
|
|
|
static void remove_stream(FFServerStream *stream)
|
|
{
|
|
FFServerStream **ps;
|
|
ps = &config.first_stream;
|
|
while (*ps) {
|
|
if (*ps == stream)
|
|
*ps = (*ps)->next;
|
|
else
|
|
ps = &(*ps)->next;
|
|
}
|
|
}
|
|
|
|
/* specific MPEG4 handling : we extract the raw parameters */
|
|
static void extract_mpeg4_header(AVFormatContext *infile)
|
|
{
|
|
int mpeg4_count, i, size;
|
|
AVPacket pkt;
|
|
AVStream *st;
|
|
const uint8_t *p;
|
|
|
|
infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE;
|
|
|
|
mpeg4_count = 0;
|
|
for(i=0;i<infile->nb_streams;i++) {
|
|
st = infile->streams[i];
|
|
if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
|
|
st->codec->extradata_size == 0) {
|
|
mpeg4_count++;
|
|
}
|
|
}
|
|
if (!mpeg4_count)
|
|
return;
|
|
|
|
printf("MPEG4 without extra data: trying to find header in %s\n",
|
|
infile->filename);
|
|
while (mpeg4_count > 0) {
|
|
if (av_read_frame(infile, &pkt) < 0)
|
|
break;
|
|
st = infile->streams[pkt.stream_index];
|
|
if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
|
|
st->codec->extradata_size == 0) {
|
|
av_freep(&st->codec->extradata);
|
|
/* fill extradata with the header */
|
|
/* XXX: we make hard suppositions here ! */
|
|
p = pkt.data;
|
|
while (p < pkt.data + pkt.size - 4) {
|
|
/* stop when vop header is found */
|
|
if (p[0] == 0x00 && p[1] == 0x00 &&
|
|
p[2] == 0x01 && p[3] == 0xb6) {
|
|
size = p - pkt.data;
|
|
st->codec->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
|
|
st->codec->extradata_size = size;
|
|
memcpy(st->codec->extradata, pkt.data, size);
|
|
break;
|
|
}
|
|
p++;
|
|
}
|
|
mpeg4_count--;
|
|
}
|
|
av_free_packet(&pkt);
|
|
}
|
|
}
|
|
|
|
/* compute the needed AVStream for each file */
|
|
static void build_file_streams(void)
|
|
{
|
|
FFServerStream *stream, *stream_next;
|
|
int i, ret;
|
|
|
|
/* gather all streams */
|
|
for(stream = config.first_stream; stream; stream = stream_next) {
|
|
AVFormatContext *infile = NULL;
|
|
stream_next = stream->next;
|
|
if (stream->stream_type == STREAM_TYPE_LIVE &&
|
|
!stream->feed) {
|
|
/* the stream comes from a file */
|
|
/* try to open the file */
|
|
/* open stream */
|
|
if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
|
|
/* specific case : if transport stream output to RTP,
|
|
* we use a raw transport stream reader */
|
|
av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
|
|
}
|
|
|
|
if (!stream->feed_filename[0]) {
|
|
http_log("Unspecified feed file for stream '%s'\n",
|
|
stream->filename);
|
|
goto fail;
|
|
}
|
|
|
|
http_log("Opening feed file '%s' for stream '%s'\n",
|
|
stream->feed_filename, stream->filename);
|
|
ret = avformat_open_input(&infile, stream->feed_filename,
|
|
stream->ifmt, &stream->in_opts);
|
|
if (ret < 0) {
|
|
http_log("Could not open '%s': %s\n", stream->feed_filename,
|
|
av_err2str(ret));
|
|
/* remove stream (no need to spend more time on it) */
|
|
fail:
|
|
remove_stream(stream);
|
|
} else {
|
|
/* find all the AVStreams inside and reference them in
|
|
* 'stream' */
|
|
if (avformat_find_stream_info(infile, NULL) < 0) {
|
|
http_log("Could not find codec parameters from '%s'\n",
|
|
stream->feed_filename);
|
|
avformat_close_input(&infile);
|
|
goto fail;
|
|
}
|
|
extract_mpeg4_header(infile);
|
|
|
|
for(i=0;i<infile->nb_streams;i++)
|
|
add_av_stream1(stream, infile->streams[i]->codec, 1);
|
|
|
|
avformat_close_input(&infile);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* compute the needed AVStream for each feed */
|
|
static void build_feed_streams(void)
|
|
{
|
|
FFServerStream *stream, *feed;
|
|
int i;
|
|
|
|
/* gather all streams */
|
|
for(stream = config.first_stream; stream; stream = stream->next) {
|
|
feed = stream->feed;
|
|
if (!feed)
|
|
continue;
|
|
|
|
if (stream->is_feed) {
|
|
for(i=0;i<stream->nb_streams;i++)
|
|
stream->feed_streams[i] = i;
|
|
} else {
|
|
/* we handle a stream coming from a feed */
|
|
for(i=0;i<stream->nb_streams;i++)
|
|
stream->feed_streams[i] = add_av_stream(feed,
|
|
stream->streams[i]);
|
|
}
|
|
}
|
|
|
|
/* create feed files if needed */
|
|
for(feed = config.first_feed; feed; feed = feed->next_feed) {
|
|
int fd;
|
|
|
|
if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
|
|
/* See if it matches */
|
|
AVFormatContext *s = NULL;
|
|
int matches = 0;
|
|
|
|
if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) {
|
|
/* set buffer size */
|
|
int ret = ffio_set_buf_size(s->pb, FFM_PACKET_SIZE);
|
|
if (ret < 0) {
|
|
http_log("Failed to set buffer size\n");
|
|
exit(1);
|
|
}
|
|
|
|
/* Now see if it matches */
|
|
if (s->nb_streams == feed->nb_streams) {
|
|
matches = 1;
|
|
for(i=0;i<s->nb_streams;i++) {
|
|
AVStream *sf, *ss;
|
|
sf = feed->streams[i];
|
|
ss = s->streams[i];
|
|
|
|
if (sf->index != ss->index ||
|
|
sf->id != ss->id) {
|
|
http_log("Index & Id do not match for stream %d (%s)\n",
|
|
i, feed->feed_filename);
|
|
matches = 0;
|
|
} else {
|
|
AVCodecContext *ccf, *ccs;
|
|
|
|
ccf = sf->codec;
|
|
ccs = ss->codec;
|
|
#define CHECK_CODEC(x) (ccf->x != ccs->x)
|
|
|
|
if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
|
|
http_log("Codecs do not match for stream %d\n", i);
|
|
matches = 0;
|
|
} else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
|
|
http_log("Codec bitrates do not match for stream %d\n", i);
|
|
matches = 0;
|
|
} else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
if (CHECK_CODEC(time_base.den) ||
|
|
CHECK_CODEC(time_base.num) ||
|
|
CHECK_CODEC(width) ||
|
|
CHECK_CODEC(height)) {
|
|
http_log("Codec width, height and framerate do not match for stream %d\n", i);
|
|
matches = 0;
|
|
}
|
|
} else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
if (CHECK_CODEC(sample_rate) ||
|
|
CHECK_CODEC(channels) ||
|
|
CHECK_CODEC(frame_size)) {
|
|
http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
|
|
matches = 0;
|
|
}
|
|
} else {
|
|
http_log("Unknown codec type\n");
|
|
matches = 0;
|
|
}
|
|
}
|
|
if (!matches)
|
|
break;
|
|
}
|
|
} else
|
|
http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
|
|
feed->feed_filename, s->nb_streams, feed->nb_streams);
|
|
|
|
avformat_close_input(&s);
|
|
} else
|
|
http_log("Deleting feed file '%s' as it appears to be corrupt\n",
|
|
feed->feed_filename);
|
|
|
|
if (!matches) {
|
|
if (feed->readonly) {
|
|
http_log("Unable to delete feed file '%s' as it is marked readonly\n",
|
|
feed->feed_filename);
|
|
exit(1);
|
|
}
|
|
unlink(feed->feed_filename);
|
|
}
|
|
}
|
|
if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
|
|
AVFormatContext *s = avformat_alloc_context();
|
|
|
|
if (!s) {
|
|
http_log("Failed to allocate context\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (feed->readonly) {
|
|
http_log("Unable to create feed file '%s' as it is marked readonly\n",
|
|
feed->feed_filename);
|
|
exit(1);
|
|
}
|
|
|
|
/* only write the header of the ffm file */
|
|
if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
|
|
http_log("Could not open output feed file '%s'\n",
|
|
feed->feed_filename);
|
|
exit(1);
|
|
}
|
|
s->oformat = feed->fmt;
|
|
s->nb_streams = feed->nb_streams;
|
|
s->streams = feed->streams;
|
|
if (avformat_write_header(s, NULL) < 0) {
|
|
http_log("Container doesn't support the required parameters\n");
|
|
exit(1);
|
|
}
|
|
/* XXX: need better API */
|
|
av_freep(&s->priv_data);
|
|
avio_closep(&s->pb);
|
|
s->streams = NULL;
|
|
s->nb_streams = 0;
|
|
avformat_free_context(s);
|
|
}
|
|
/* get feed size and write index */
|
|
fd = open(feed->feed_filename, O_RDONLY);
|
|
if (fd < 0) {
|
|
http_log("Could not open output feed file '%s'\n",
|
|
feed->feed_filename);
|
|
exit(1);
|
|
}
|
|
|
|
feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
|
|
feed->feed_size = lseek(fd, 0, SEEK_END);
|
|
/* ensure that we do not wrap before the end of file */
|
|
if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
|
|
feed->feed_max_size = feed->feed_size;
|
|
|
|
close(fd);
|
|
}
|
|
}
|
|
|
|
/* compute the bandwidth used by each stream */
|
|
static void compute_bandwidth(void)
|
|
{
|
|
unsigned bandwidth;
|
|
int i;
|
|
FFServerStream *stream;
|
|
|
|
for(stream = config.first_stream; stream; stream = stream->next) {
|
|
bandwidth = 0;
|
|
for(i=0;i<stream->nb_streams;i++) {
|
|
AVStream *st = stream->streams[i];
|
|
switch(st->codec->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
bandwidth += st->codec->bit_rate;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
stream->bandwidth = (bandwidth + 999) / 1000;
|
|
}
|
|
}
|
|
|
|
static void handle_child_exit(int sig)
|
|
{
|
|
pid_t pid;
|
|
int status, uptime;
|
|
|
|
while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
|
|
FFServerStream *feed;
|
|
|
|
for (feed = config.first_feed; feed; feed = feed->next) {
|
|
if (feed->pid != pid)
|
|
continue;
|
|
|
|
uptime = time(0) - feed->pid_start;
|
|
feed->pid = 0;
|
|
fprintf(stderr,
|
|
"%s: Pid %"PRId64" exited with status %d after %d seconds\n",
|
|
feed->filename, (int64_t) pid, status, uptime);
|
|
|
|
if (uptime < 30)
|
|
/* Turn off any more restarts */
|
|
ffserver_free_child_args(&feed->child_argv);
|
|
}
|
|
}
|
|
|
|
need_to_start_children = 1;
|
|
}
|
|
|
|
static void opt_debug(void)
|
|
{
|
|
config.debug = 1;
|
|
snprintf(config.logfilename, sizeof(config.logfilename), "-");
|
|
}
|
|
|
|
void show_help_default(const char *opt, const char *arg)
|
|
{
|
|
printf("usage: ffserver [options]\n"
|
|
"Hyper fast multi format Audio/Video streaming server\n");
|
|
printf("\n");
|
|
show_help_options(options, "Main options:", 0, 0, 0);
|
|
}
|
|
|
|
static const OptionDef options[] = {
|
|
#include "cmdutils_common_opts.h"
|
|
{ "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
|
|
{ "d", 0, {(void*)opt_debug}, "enable debug mode" },
|
|
{ "f", HAS_ARG | OPT_STRING, {(void*)&config.filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
|
|
{ NULL },
|
|
};
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
struct sigaction sigact = { { 0 } };
|
|
int ret = 0;
|
|
|
|
config.filename = av_strdup("/etc/ffserver.conf");
|
|
|
|
parse_loglevel(argc, argv, options);
|
|
av_register_all();
|
|
avformat_network_init();
|
|
|
|
show_banner(argc, argv, options);
|
|
|
|
my_program_name = argv[0];
|
|
|
|
parse_options(NULL, argc, argv, options, NULL);
|
|
|
|
unsetenv("http_proxy"); /* Kill the http_proxy */
|
|
|
|
av_lfg_init(&random_state, av_get_random_seed());
|
|
|
|
sigact.sa_handler = handle_child_exit;
|
|
sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
|
|
sigaction(SIGCHLD, &sigact, 0);
|
|
|
|
if ((ret = ffserver_parse_ffconfig(config.filename, &config)) < 0) {
|
|
fprintf(stderr, "Error reading configuration file '%s': %s\n",
|
|
config.filename, av_err2str(ret));
|
|
exit(1);
|
|
}
|
|
av_freep(&config.filename);
|
|
|
|
/* open log file if needed */
|
|
if (config.logfilename[0] != '\0') {
|
|
if (!strcmp(config.logfilename, "-"))
|
|
logfile = stdout;
|
|
else
|
|
logfile = fopen(config.logfilename, "a");
|
|
av_log_set_callback(http_av_log);
|
|
}
|
|
|
|
build_file_streams();
|
|
|
|
build_feed_streams();
|
|
|
|
compute_bandwidth();
|
|
|
|
/* signal init */
|
|
signal(SIGPIPE, SIG_IGN);
|
|
|
|
if (http_server() < 0) {
|
|
http_log("Could not start server\n");
|
|
exit(1);
|
|
}
|
|
|
|
return 0;
|
|
}
|