kolibrios/contrib/media/fplay/fplay.c

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#include <stdint.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavdevice/avdevice.h>
#include <libswscale/swscale.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <ctype.h>
#include <kos32sys.h>
#include "winlib/winlib.h"
#include "sound.h"
#include "fplay.h"
volatile enum player_state player_state = STOP;
volatile enum player_state decoder_state = PREPARE;
volatile enum player_state sound_state = STOP;
uint32_t win_width, win_height;
void decoder();
int fplay_init_context(AVCodecContext *avctx);
AVFormatContext *pFormatCtx;
AVCodecContext *pCodecCtx;
AVCodecContext *aCodecCtx;
AVCodec *pCodec;
AVCodec *aCodec;
AVFrame *pFrame;
int videoStream;
int audioStream;
int have_sound = 0;
uint8_t *decoder_buffer;
extern int resampler_size;
extern int sample_rate;
char *movie_file;
void flush_video();
queue_t q_video;
queue_t q_audio;
int64_t rewind_pos;
int64_t stream_duration;
extern double audio_base;
double get_audio_base()
{
return (double)av_q2d(pFormatCtx->streams[audioStream]->time_base)*1000;
};
int main( int argc, char *argv[])
{
int i;
char *file_name, *dot;
if(argc < 2)
{
movie_file = get_moviefile();
if(movie_file == NULL)
{
printf("Please provide a movie file\n");
return -1;
}
}
else movie_file = argv[1];
/* register all codecs, demux and protocols */
av_log_set_level(AV_LOG_FATAL);
avcodec_register_all();
avdevice_register_all();
av_register_all();
if( avformat_open_input(&pFormatCtx, movie_file, NULL, NULL) < 0)
{
printf("Cannot open file %s\n\r", movie_file);
return -1; // Couldn't open file
};
pFormatCtx->flags |= AVFMT_FLAG_GENPTS;
// Retrieve stream information
if(avformat_find_stream_info(pFormatCtx, NULL)<0)
{
printf("Cannot find streams\n\r");
return -1;
};
file_name = strrchr(movie_file,'/')+1;
dot = strrchr(file_name,'.');
if(dot)
{
movie_file = malloc(dot-file_name+1);
memcpy(movie_file, file_name, dot-file_name);
movie_file[dot-file_name] = 0;
}
else movie_file = file_name;
// __asm__ __volatile__("int3");
stream_duration = pFormatCtx->duration;
printf("duration %f\n", (double)stream_duration);
// Find the first video stream
videoStream=-1;
audioStream=-1;
for(i=0; i < pFormatCtx->nb_streams; i++)
{
if(pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO
&& videoStream < 0)
{
videoStream=i;
video_time_base = pFormatCtx->streams[i]->time_base;
if(stream_duration == 0)
stream_duration = pFormatCtx->streams[i]->duration;
}
if(pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_AUDIO &&
audioStream < 0)
{
audioStream=i;
if(stream_duration == 0)
stream_duration = pFormatCtx->streams[i]->duration;
}
}
if(videoStream==-1)
{
printf("Video stream not detected\n\r");
return -1; // Didn't find a video stream
};
// __asm__ __volatile__("int3");
// Get a pointer to the codec context for the video stream
pCodecCtx = pFormatCtx->streams[videoStream]->codec;
aCodecCtx = pFormatCtx->streams[audioStream]->codec;
// Find the decoder for the video stream
pCodec=avcodec_find_decoder(pCodecCtx->codec_id);
// printf("ctx->pix_fmt %d\n", pCodecCtx->pix_fmt);
if(pCodec==NULL) {
printf("Unsupported codec with id %d for input stream %d\n",
pCodecCtx->codec_id, videoStream);
return -1; // Codec not found
}
if(avcodec_open2(pCodecCtx, pCodec, NULL) < 0)
{
printf("Error while opening codec for input stream %d\n",
videoStream);
return -1; // Could not open codec
};
// printf("ctx->pix_fmt %d\n", pCodecCtx->pix_fmt);
if (aCodecCtx->channels > 0)
aCodecCtx->request_channels = FFMIN(2, aCodecCtx->channels);
else
aCodecCtx->request_channels = 2;
aCodec = avcodec_find_decoder(aCodecCtx->codec_id);
if(aCodec)
{
if(avcodec_open2(aCodecCtx, aCodec, NULL) >= 0 )
{
WAVEHEADER whdr;
int fmt;
int channels;
printf("audio stream rate %d channels %d format %d\n",
aCodecCtx->sample_rate, aCodecCtx->channels, aCodecCtx->sample_fmt );
whdr.riff_id = 0x46464952;
whdr.riff_format = 0x45564157;
whdr.wFormatTag = 0x01;
whdr.nSamplesPerSec = aCodecCtx->sample_rate;
whdr.nChannels = 2;
whdr.wBitsPerSample = 16;
sample_rate = aCodecCtx->sample_rate;
fmt = test_wav(&whdr);
if( init_audio(fmt) )
{
decoder_buffer = (uint8_t*)av_mallocz(192000*2+64);
if( decoder_buffer != NULL )
{
astream.lock = 0;
astream.count = 0;
astream.buffer = (char *)av_mallocz(192000*3);
if( astream.buffer != NULL )
have_sound = 1;
else
av_free(decoder_buffer);
}
if( have_sound == 0)
{
printf("Not enough memory for audio buffers\n");
}
}
}
else printf("Cannot open audio codec\n\r");
}
else printf("Unsupported audio codec!\n");
if( !init_video(pCodecCtx))
return 0;
// __asm__ __volatile__("int3");
decoder();
// Free the YUV frame
av_free(pFrame);
//__asm__ __volatile__("int3");
// Close the codec
// avcodec_close(pCodecCtx);
// Close the video file
// av_close_input_file(pFormatCtx);
//__asm__ __volatile__("int3");
return 0;
}
static int load_frame()
{
AVPacket packet;
int err;
err = av_read_frame(pFormatCtx, &packet);
if( err == 0)
{
if(packet.stream_index==videoStream)
put_packet(&q_video, &packet);
else if( (packet.stream_index == audioStream) &&
(have_sound != 0) )
{
put_packet(&q_audio, &packet);
if(audio_base == -1.0)
{
if (packet.pts != AV_NOPTS_VALUE)
audio_base = get_audio_base() * packet.pts;
// printf("audio base %f\n", audio_base);
};
}
else av_free_packet(&packet);
}
else if (err != AVERROR_EOF)
printf("av_read_frame: error %x\n", err);
return err;
}
static int fill_queue()
{
int err = 0;
AVPacket packet;
while( (q_video.size < 4*1024*1024) &&
!err )
err = load_frame();
return err;
};
static void flush_all()
{
AVPacket packet;
avcodec_flush_buffers(pCodecCtx);
avcodec_flush_buffers(aCodecCtx);
while( get_packet(&q_video, &packet) != 0)
av_free_packet(&packet);
while( get_packet(&q_audio, &packet)!= 0)
av_free_packet(&packet);
flush_video();
astream.count = 0;
};
void decoder()
{
int eof;
AVPacket packet;
int ret, vret, aret;
int64_t min_pos, max_pos;
// av_log_set_level(AV_LOG_DEBUG);
while( player_state != CLOSED )
{
int err;
switch(decoder_state)
{
case PREPARE:
eof = fill_queue();
do
{
if( (q_video.size < 4*1024*1024) &&
(eof == 0) )
{
eof = load_frame();
}
decode_video(pCodecCtx, &q_video);
ret = decode_audio(aCodecCtx, &q_audio);
}while(astream.count < resampler_size*2 &&
ret == 1);
sound_state = PREPARE;
decoder_state = PLAY;
player_state = PLAY;
case PLAY:
if( (q_video.size < 4*1024*1024) &&
(eof == 0) )
{
eof = load_frame();
}
vret = decode_video(pCodecCtx, &q_video);
aret = decode_audio(aCodecCtx, &q_audio);
ret = vret | aret;
if( eof && !ret)
{
decoder_state = STOP;
continue;
};
if( (vret & aret) == -1)
{
if( (q_video.size < 4*1024*1024) &&
(eof == 0) )
{
eof = load_frame();
yield();
continue;
};
delay(1);
continue;
}
yield();
continue;
case STOP:
delay(1);
continue;
case PLAY_2_STOP:
while(sound_state != STOP)
delay(1);
flush_all();
if (pFormatCtx->start_time != AV_NOPTS_VALUE)
rewind_pos = pFormatCtx->start_time;
else
rewind_pos = 0;
ret = avformat_seek_file(pFormatCtx, -1, INT64_MIN,
rewind_pos, INT64_MAX, 0);
decoder_state = STOP;
break;
case REWIND:
while(sound_state != STOP)
yield();
flush_all();
int opts = 0;
if(rewind_pos < 0)
{
rewind_pos = -rewind_pos;
opts = AVSEEK_FLAG_BACKWARD;
};
if (pFormatCtx->start_time != AV_NOPTS_VALUE)
rewind_pos += pFormatCtx->start_time;
// printf("rewind %8"PRId64"\n", rewind_pos);
min_pos = rewind_pos - 1000000;
max_pos = rewind_pos + 1000000;
ret = avformat_seek_file(pFormatCtx, -1, INT64_MIN,
rewind_pos, INT64_MAX, 0);
if (ret < 0)
{
printf("could not seek to position %f\n",
(double)rewind_pos / AV_TIME_BASE);
}
// printf("restart\n");
decoder_state = PREPARE;
break;
}
};
ret = 1;
while( (player_state != CLOSED) && ret)
{
ret = decode_video(pCodecCtx, &q_video);
ret |= decode_audio(aCodecCtx, &q_audio);
delay(1);
};
delay(50);
player_state = CLOSED;
delay(300);
};