forked from KolibriOS/kolibrios
1078 lines
37 KiB
C
1078 lines
37 KiB
C
/*
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* ASF muxer
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* Copyright (c) 2000, 2001 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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#include "libavutil/avassert.h"
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#include "libavutil/dict.h"
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#include "libavutil/mathematics.h"
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#include "avformat.h"
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#include "avio_internal.h"
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#include "internal.h"
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#include "riff.h"
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#include "asf.h"
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#define ASF_INDEXED_INTERVAL 10000000
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#define ASF_INDEX_BLOCK (1<<9)
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#define ASF_PAYLOADS_PER_PACKET 63
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#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE 0x2
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#define ASF_PACKET_ERROR_CORRECTION_FLAGS \
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(ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \
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ASF_PACKET_ERROR_CORRECTION_DATA_SIZE)
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#if (ASF_PACKET_ERROR_CORRECTION_FLAGS != 0)
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# define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 1
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#else
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# define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 0
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#endif
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#define ASF_PPI_PROPERTY_FLAGS \
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(ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE | \
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ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD | \
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ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE | \
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ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE)
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#define ASF_PPI_LENGTH_TYPE_FLAGS 0
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#define ASF_PAYLOAD_FLAGS ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD
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#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
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# define ASF_PPI_SEQUENCE_FIELD_SIZE 1
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#endif
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#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
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# define ASF_PPI_SEQUENCE_FIELD_SIZE 2
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#endif
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#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
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# define ASF_PPI_SEQUENCE_FIELD_SIZE 4
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#endif
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#ifndef ASF_PPI_SEQUENCE_FIELD_SIZE
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# define ASF_PPI_SEQUENCE_FIELD_SIZE 0
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#endif
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#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
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# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 1
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#endif
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#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
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# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 2
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#endif
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#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
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# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 4
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#endif
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#ifndef ASF_PPI_PACKET_LENGTH_FIELD_SIZE
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# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 0
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#endif
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#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
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# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 1
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#endif
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#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
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# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 2
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#endif
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#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
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# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 4
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#endif
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#ifndef ASF_PPI_PADDING_LENGTH_FIELD_SIZE
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# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 0
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#endif
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#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 1
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#endif
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#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 2
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#endif
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#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 4
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#endif
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#ifndef ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE
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# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 0
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#endif
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#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 1
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#endif
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#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 2
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#endif
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#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 4
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#endif
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#ifndef ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE
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# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 0
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#endif
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#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 1
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#endif
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#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 2
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#endif
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#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 4
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#endif
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#ifndef ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE
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# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 0
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#endif
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#if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 1
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#endif
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#if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
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# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 2
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#endif
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#ifndef ASF_PAYLOAD_LENGTH_FIELD_SIZE
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# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 0
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#endif
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#define PACKET_HEADER_MIN_SIZE \
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(ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE + \
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ASF_PACKET_ERROR_CORRECTION_DATA_SIZE + \
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1 + /* Length Type Flags */ \
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1 + /* Property Flags */ \
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ASF_PPI_PACKET_LENGTH_FIELD_SIZE + \
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ASF_PPI_SEQUENCE_FIELD_SIZE + \
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ASF_PPI_PADDING_LENGTH_FIELD_SIZE + \
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4 + /* Send Time Field */ \
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2) /* Duration Field */
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// Replicated Data shall be at least 8 bytes long.
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#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH 0x08
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#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \
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(1 + /* Stream Number */ \
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ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
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ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
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ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
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ASF_PAYLOAD_REPLICATED_DATA_LENGTH)
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#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \
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(1 + /* Stream Number */ \
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ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
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ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
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ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
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ASF_PAYLOAD_REPLICATED_DATA_LENGTH + \
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ASF_PAYLOAD_LENGTH_FIELD_SIZE)
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#define SINGLE_PAYLOAD_DATA_LENGTH \
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(PACKET_SIZE - \
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PACKET_HEADER_MIN_SIZE - \
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PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD)
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#define MULTI_PAYLOAD_CONSTANT \
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(PACKET_SIZE - \
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PACKET_HEADER_MIN_SIZE - \
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1 - /* Payload Flags */ \
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2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS)
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#define DATA_HEADER_SIZE 50
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typedef struct ASFPayload {
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uint8_t type;
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uint16_t size;
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} ASFPayload;
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typedef struct ASFStream {
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int num;
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unsigned char seq;
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/* use for reading */
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AVPacket pkt;
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int frag_offset;
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int packet_obj_size;
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int timestamp;
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int64_t duration;
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int skip_to_key;
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int pkt_clean;
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int ds_span; /* descrambling */
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int ds_packet_size;
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int ds_chunk_size;
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int64_t packet_pos;
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uint16_t stream_language_index;
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int palette_changed;
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uint32_t palette[256];
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int payload_ext_ct;
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ASFPayload payload[8];
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} ASFStream;
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typedef struct ASFContext {
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uint32_t seqno;
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int is_streamed;
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ASFStream streams[128]; ///< it's max number and it's not that big
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/* non streamed additonnal info */
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uint64_t nb_packets; ///< how many packets are there in the file, invalid if broadcasting
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int64_t duration; ///< in 100ns units
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/* packet filling */
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unsigned char multi_payloads_present;
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int packet_size_left;
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int64_t packet_timestamp_start;
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int64_t packet_timestamp_end;
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unsigned int packet_nb_payloads;
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uint8_t packet_buf[PACKET_SIZE];
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AVIOContext pb;
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/* only for reading */
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uint64_t data_offset; ///< beginning of the first data packet
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ASFIndex *index_ptr;
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uint32_t nb_index_memory_alloc;
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uint16_t maximum_packet;
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uint32_t next_packet_number;
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uint16_t next_packet_count;
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uint64_t next_packet_offset;
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int next_start_sec;
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int end_sec;
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} ASFContext;
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static const AVCodecTag codec_asf_bmp_tags[] = {
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{ AV_CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
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{ AV_CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
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{ AV_CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
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{ AV_CODEC_ID_NONE, 0 },
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};
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#define PREROLL_TIME 3100
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static void put_str16(AVIOContext *s, const char *tag)
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{
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int len;
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uint8_t *pb;
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AVIOContext *dyn_buf;
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if (avio_open_dyn_buf(&dyn_buf) < 0)
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return;
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avio_put_str16le(dyn_buf, tag);
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len = avio_close_dyn_buf(dyn_buf, &pb);
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avio_wl16(s, len);
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avio_write(s, pb, len);
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av_freep(&pb);
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}
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static int64_t put_header(AVIOContext *pb, const ff_asf_guid *g)
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{
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int64_t pos;
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pos = avio_tell(pb);
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ff_put_guid(pb, g);
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avio_wl64(pb, 24);
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return pos;
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}
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/* update header size */
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static void end_header(AVIOContext *pb, int64_t pos)
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{
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int64_t pos1;
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pos1 = avio_tell(pb);
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avio_seek(pb, pos + 16, SEEK_SET);
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avio_wl64(pb, pos1 - pos);
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avio_seek(pb, pos1, SEEK_SET);
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}
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/* write an asf chunk (only used in streaming case) */
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static void put_chunk(AVFormatContext *s, int type,
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int payload_length, int flags)
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{
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ASFContext *asf = s->priv_data;
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AVIOContext *pb = s->pb;
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int length;
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length = payload_length + 8;
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avio_wl16(pb, type);
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avio_wl16(pb, length); // size
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avio_wl32(pb, asf->seqno); // sequence number
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avio_wl16(pb, flags); // unknown bytes
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avio_wl16(pb, length); // size_confirm
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asf->seqno++;
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}
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/* convert from unix to windows time */
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static int64_t unix_to_file_time(int ti)
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{
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int64_t t;
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t = ti * INT64_C(10000000);
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t += INT64_C(116444736000000000);
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return t;
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}
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static int32_t get_send_time(ASFContext *asf, int64_t pres_time, uint64_t *offset)
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{
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int i;
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int32_t send_time = 0;
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*offset = asf->data_offset + DATA_HEADER_SIZE;
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for (i = 0; i < asf->next_start_sec; i++) {
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if (pres_time <= asf->index_ptr[i].send_time)
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break;
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send_time = asf->index_ptr[i].send_time;
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*offset = asf->index_ptr[i].offset;
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}
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return send_time / 10000;
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}
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static int asf_write_markers(AVFormatContext *s)
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{
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ASFContext *asf = s->priv_data;
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AVIOContext *pb = s->pb;
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int i;
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AVRational scale = {1, 10000000};
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int64_t hpos = put_header(pb, &ff_asf_marker_header);
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ff_put_guid(pb, &ff_asf_reserved_4);// ASF spec mandates this reserved value
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avio_wl32(pb, s->nb_chapters); // markers count
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avio_wl16(pb, 0); // ASF spec mandates 0 for this
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avio_wl16(pb, 0); // name length 0, no name given
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for (i = 0; i < s->nb_chapters; i++) {
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AVChapter *c = s->chapters[i];
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AVDictionaryEntry *t = av_dict_get(c->metadata, "title", NULL, 0);
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int64_t pres_time = av_rescale_q(c->start, c->time_base, scale);
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uint64_t offset;
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int32_t send_time = get_send_time(asf, pres_time, &offset);
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int len = 0;
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uint8_t *buf;
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AVIOContext *dyn_buf;
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if (t) {
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if (avio_open_dyn_buf(&dyn_buf) < 0)
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return AVERROR(ENOMEM);
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avio_put_str16le(dyn_buf, t->value);
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len = avio_close_dyn_buf(dyn_buf, &buf);
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}
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avio_wl64(pb, offset); // offset of the packet with send_time
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avio_wl64(pb, pres_time + PREROLL_TIME * 10000); // presentation time
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avio_wl16(pb, 12 + len); // entry length
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avio_wl32(pb, send_time); // send time
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avio_wl32(pb, 0); // flags, should be 0
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avio_wl32(pb, len / 2); // marker desc length in WCHARS!
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if (t) {
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avio_write(pb, buf, len); // marker desc
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av_freep(&buf);
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}
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}
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end_header(pb, hpos);
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return 0;
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}
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/* write the header (used two times if non streamed) */
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static int asf_write_header1(AVFormatContext *s, int64_t file_size,
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int64_t data_chunk_size)
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{
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ASFContext *asf = s->priv_data;
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AVIOContext *pb = s->pb;
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AVDictionaryEntry *tags[5];
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int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;
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int has_title, has_aspect_ratio = 0;
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int metadata_count;
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AVCodecContext *enc;
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int64_t header_offset, cur_pos, hpos;
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int bit_rate;
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int64_t duration;
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ff_metadata_conv(&s->metadata, ff_asf_metadata_conv, NULL);
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tags[0] = av_dict_get(s->metadata, "title", NULL, 0);
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tags[1] = av_dict_get(s->metadata, "author", NULL, 0);
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tags[2] = av_dict_get(s->metadata, "copyright", NULL, 0);
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tags[3] = av_dict_get(s->metadata, "comment", NULL, 0);
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tags[4] = av_dict_get(s->metadata, "rating", NULL, 0);
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duration = asf->duration + PREROLL_TIME * 10000;
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has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
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metadata_count = av_dict_count(s->metadata);
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bit_rate = 0;
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for (n = 0; n < s->nb_streams; n++) {
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enc = s->streams[n]->codec;
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avpriv_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */
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bit_rate += enc->bit_rate;
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if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
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&& enc->sample_aspect_ratio.num > 0
|
|
&& enc->sample_aspect_ratio.den > 0)
|
|
has_aspect_ratio++;
|
|
}
|
|
|
|
if (asf->is_streamed) {
|
|
put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */
|
|
}
|
|
|
|
ff_put_guid(pb, &ff_asf_header);
|
|
avio_wl64(pb, -1); /* header length, will be patched after */
|
|
avio_wl32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */
|
|
avio_w8(pb, 1); /* ??? */
|
|
avio_w8(pb, 2); /* ??? */
|
|
|
|
/* file header */
|
|
header_offset = avio_tell(pb);
|
|
hpos = put_header(pb, &ff_asf_file_header);
|
|
ff_put_guid(pb, &ff_asf_my_guid);
|
|
avio_wl64(pb, file_size);
|
|
file_time = 0;
|
|
avio_wl64(pb, unix_to_file_time(file_time));
|
|
avio_wl64(pb, asf->nb_packets); /* number of packets */
|
|
avio_wl64(pb, duration); /* end time stamp (in 100ns units) */
|
|
avio_wl64(pb, asf->duration); /* duration (in 100ns units) */
|
|
avio_wl64(pb, PREROLL_TIME); /* start time stamp */
|
|
avio_wl32(pb, (asf->is_streamed || !pb->seekable) ? 3 : 2); /* ??? */
|
|
avio_wl32(pb, s->packet_size); /* packet size */
|
|
avio_wl32(pb, s->packet_size); /* packet size */
|
|
avio_wl32(pb, bit_rate ? bit_rate : -1); /* Maximum data rate in bps */
|
|
end_header(pb, hpos);
|
|
|
|
/* unknown headers */
|
|
hpos = put_header(pb, &ff_asf_head1_guid);
|
|
ff_put_guid(pb, &ff_asf_head2_guid);
|
|
avio_wl16(pb, 6);
|
|
if (has_aspect_ratio) {
|
|
int64_t hpos2;
|
|
avio_wl32(pb, 26 + has_aspect_ratio * 84);
|
|
hpos2 = put_header(pb, &ff_asf_metadata_header);
|
|
avio_wl16(pb, 2 * has_aspect_ratio);
|
|
for (n = 0; n < s->nb_streams; n++) {
|
|
enc = s->streams[n]->codec;
|
|
if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
|
|
&& enc->sample_aspect_ratio.num > 0
|
|
&& enc->sample_aspect_ratio.den > 0) {
|
|
AVRational sar = enc->sample_aspect_ratio;
|
|
avio_wl16(pb, 0);
|
|
// the stream number is set like this below
|
|
avio_wl16(pb, n + 1);
|
|
avio_wl16(pb, 26); // name_len
|
|
avio_wl16(pb, 3); // value_type
|
|
avio_wl32(pb, 4); // value_len
|
|
avio_put_str16le(pb, "AspectRatioX");
|
|
avio_wl32(pb, sar.num);
|
|
avio_wl16(pb, 0);
|
|
// the stream number is set like this below
|
|
avio_wl16(pb, n + 1);
|
|
avio_wl16(pb, 26); // name_len
|
|
avio_wl16(pb, 3); // value_type
|
|
avio_wl32(pb, 4); // value_len
|
|
avio_put_str16le(pb, "AspectRatioY");
|
|
avio_wl32(pb, sar.den);
|
|
}
|
|
}
|
|
end_header(pb, hpos2);
|
|
} else {
|
|
avio_wl32(pb, 0);
|
|
}
|
|
end_header(pb, hpos);
|
|
|
|
/* title and other infos */
|
|
if (has_title) {
|
|
int len;
|
|
uint8_t *buf;
|
|
AVIOContext *dyn_buf;
|
|
|
|
if (avio_open_dyn_buf(&dyn_buf) < 0)
|
|
return AVERROR(ENOMEM);
|
|
|
|
hpos = put_header(pb, &ff_asf_comment_header);
|
|
|
|
for (n = 0; n < FF_ARRAY_ELEMS(tags); n++) {
|
|
len = tags[n] ? avio_put_str16le(dyn_buf, tags[n]->value) : 0;
|
|
avio_wl16(pb, len);
|
|
}
|
|
len = avio_close_dyn_buf(dyn_buf, &buf);
|
|
avio_write(pb, buf, len);
|
|
av_freep(&buf);
|
|
end_header(pb, hpos);
|
|
}
|
|
if (metadata_count) {
|
|
AVDictionaryEntry *tag = NULL;
|
|
hpos = put_header(pb, &ff_asf_extended_content_header);
|
|
avio_wl16(pb, metadata_count);
|
|
while ((tag = av_dict_get(s->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
|
|
put_str16(pb, tag->key);
|
|
avio_wl16(pb, 0);
|
|
put_str16(pb, tag->value);
|
|
}
|
|
end_header(pb, hpos);
|
|
}
|
|
/* chapters using ASF markers */
|
|
if (!asf->is_streamed && s->nb_chapters) {
|
|
int ret;
|
|
if ((ret = asf_write_markers(s)) < 0)
|
|
return ret;
|
|
}
|
|
/* stream headers */
|
|
for (n = 0; n < s->nb_streams; n++) {
|
|
int64_t es_pos;
|
|
// ASFStream *stream = &asf->streams[n];
|
|
|
|
enc = s->streams[n]->codec;
|
|
asf->streams[n].num = n + 1;
|
|
asf->streams[n].seq = 1;
|
|
|
|
switch (enc->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
wav_extra_size = 0;
|
|
extra_size = 18 + wav_extra_size;
|
|
extra_size2 = 8;
|
|
break;
|
|
default:
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
wav_extra_size = enc->extradata_size;
|
|
extra_size = 0x33 + wav_extra_size;
|
|
extra_size2 = 0;
|
|
break;
|
|
}
|
|
|
|
hpos = put_header(pb, &ff_asf_stream_header);
|
|
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
ff_put_guid(pb, &ff_asf_audio_stream);
|
|
ff_put_guid(pb, &ff_asf_audio_conceal_spread);
|
|
} else {
|
|
ff_put_guid(pb, &ff_asf_video_stream);
|
|
ff_put_guid(pb, &ff_asf_video_conceal_none);
|
|
}
|
|
avio_wl64(pb, 0); /* ??? */
|
|
es_pos = avio_tell(pb);
|
|
avio_wl32(pb, extra_size); /* wav header len */
|
|
avio_wl32(pb, extra_size2); /* additional data len */
|
|
avio_wl16(pb, n + 1); /* stream number */
|
|
avio_wl32(pb, 0); /* ??? */
|
|
|
|
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
/* WAVEFORMATEX header */
|
|
int wavsize = ff_put_wav_header(pb, enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX);
|
|
|
|
if (wavsize < 0)
|
|
return -1;
|
|
if (wavsize != extra_size) {
|
|
cur_pos = avio_tell(pb);
|
|
avio_seek(pb, es_pos, SEEK_SET);
|
|
avio_wl32(pb, wavsize); /* wav header len */
|
|
avio_seek(pb, cur_pos, SEEK_SET);
|
|
}
|
|
/* ERROR Correction */
|
|
avio_w8(pb, 0x01);
|
|
if (enc->codec_id == AV_CODEC_ID_ADPCM_G726 || !enc->block_align) {
|
|
avio_wl16(pb, 0x0190);
|
|
avio_wl16(pb, 0x0190);
|
|
} else {
|
|
avio_wl16(pb, enc->block_align);
|
|
avio_wl16(pb, enc->block_align);
|
|
}
|
|
avio_wl16(pb, 0x01);
|
|
avio_w8(pb, 0x00);
|
|
} else {
|
|
avio_wl32(pb, enc->width);
|
|
avio_wl32(pb, enc->height);
|
|
avio_w8(pb, 2); /* ??? */
|
|
avio_wl16(pb, 40 + enc->extradata_size); /* size */
|
|
|
|
/* BITMAPINFOHEADER header */
|
|
ff_put_bmp_header(pb, enc, ff_codec_bmp_tags, 1, 0);
|
|
}
|
|
end_header(pb, hpos);
|
|
}
|
|
|
|
/* media comments */
|
|
|
|
hpos = put_header(pb, &ff_asf_codec_comment_header);
|
|
ff_put_guid(pb, &ff_asf_codec_comment1_header);
|
|
avio_wl32(pb, s->nb_streams);
|
|
for (n = 0; n < s->nb_streams; n++) {
|
|
const AVCodecDescriptor *codec_desc;
|
|
const char *desc;
|
|
|
|
enc = s->streams[n]->codec;
|
|
codec_desc = avcodec_descriptor_get(enc->codec_id);
|
|
|
|
if (enc->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
avio_wl16(pb, 2);
|
|
else if (enc->codec_type == AVMEDIA_TYPE_VIDEO)
|
|
avio_wl16(pb, 1);
|
|
else
|
|
avio_wl16(pb, -1);
|
|
|
|
if (enc->codec_id == AV_CODEC_ID_WMAV2)
|
|
desc = "Windows Media Audio V8";
|
|
else
|
|
desc = codec_desc ? codec_desc->name : NULL;
|
|
|
|
if (desc) {
|
|
AVIOContext *dyn_buf;
|
|
uint8_t *buf;
|
|
int len;
|
|
|
|
if (avio_open_dyn_buf(&dyn_buf) < 0)
|
|
return AVERROR(ENOMEM);
|
|
|
|
avio_put_str16le(dyn_buf, desc);
|
|
len = avio_close_dyn_buf(dyn_buf, &buf);
|
|
avio_wl16(pb, len / 2); // "number of characters" = length in bytes / 2
|
|
|
|
avio_write(pb, buf, len);
|
|
av_freep(&buf);
|
|
} else
|
|
avio_wl16(pb, 0);
|
|
|
|
avio_wl16(pb, 0); /* no parameters */
|
|
|
|
/* id */
|
|
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
avio_wl16(pb, 2);
|
|
avio_wl16(pb, enc->codec_tag);
|
|
} else {
|
|
avio_wl16(pb, 4);
|
|
avio_wl32(pb, enc->codec_tag);
|
|
}
|
|
if (!enc->codec_tag)
|
|
return -1;
|
|
}
|
|
end_header(pb, hpos);
|
|
|
|
/* patch the header size fields */
|
|
|
|
cur_pos = avio_tell(pb);
|
|
header_size = cur_pos - header_offset;
|
|
if (asf->is_streamed) {
|
|
header_size += 8 + 30 + DATA_HEADER_SIZE;
|
|
|
|
avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
|
|
avio_wl16(pb, header_size);
|
|
avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
|
|
avio_wl16(pb, header_size);
|
|
|
|
header_size -= 8 + 30 + DATA_HEADER_SIZE;
|
|
}
|
|
header_size += 24 + 6;
|
|
avio_seek(pb, header_offset - 14, SEEK_SET);
|
|
avio_wl64(pb, header_size);
|
|
avio_seek(pb, cur_pos, SEEK_SET);
|
|
|
|
/* movie chunk, followed by packets of packet_size */
|
|
asf->data_offset = cur_pos;
|
|
ff_put_guid(pb, &ff_asf_data_header);
|
|
avio_wl64(pb, data_chunk_size);
|
|
ff_put_guid(pb, &ff_asf_my_guid);
|
|
avio_wl64(pb, asf->nb_packets); /* nb packets */
|
|
avio_w8(pb, 1); /* ??? */
|
|
avio_w8(pb, 1); /* ??? */
|
|
return 0;
|
|
}
|
|
|
|
static int asf_write_header(AVFormatContext *s)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
|
|
s->packet_size = PACKET_SIZE;
|
|
s->max_interleave_delta = 0;
|
|
asf->nb_packets = 0;
|
|
|
|
asf->index_ptr = av_malloc(sizeof(ASFIndex) * ASF_INDEX_BLOCK);
|
|
if (!asf->index_ptr)
|
|
return AVERROR(ENOMEM);
|
|
asf->nb_index_memory_alloc = ASF_INDEX_BLOCK;
|
|
asf->maximum_packet = 0;
|
|
|
|
/* the data-chunk-size has to be 50 (DATA_HEADER_SIZE), which is
|
|
* data_size - asf->data_offset at the moment this function is done.
|
|
* It is needed to use asf as a streamable format. */
|
|
if (asf_write_header1(s, 0, DATA_HEADER_SIZE) < 0) {
|
|
//av_free(asf);
|
|
av_freep(&asf->index_ptr);
|
|
return -1;
|
|
}
|
|
|
|
avio_flush(s->pb);
|
|
|
|
asf->packet_nb_payloads = 0;
|
|
asf->packet_timestamp_start = -1;
|
|
asf->packet_timestamp_end = -1;
|
|
ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
|
|
NULL, NULL, NULL, NULL);
|
|
|
|
if (s->avoid_negative_ts < 0)
|
|
s->avoid_negative_ts = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asf_write_stream_header(AVFormatContext *s)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
|
|
asf->is_streamed = 1;
|
|
|
|
return asf_write_header(s);
|
|
}
|
|
|
|
static int put_payload_parsing_info(AVFormatContext *s,
|
|
unsigned sendtime, unsigned duration,
|
|
int nb_payloads, int padsize)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
AVIOContext *pb = s->pb;
|
|
int ppi_size, i;
|
|
int64_t start = avio_tell(pb);
|
|
|
|
int iLengthTypeFlags = ASF_PPI_LENGTH_TYPE_FLAGS;
|
|
|
|
padsize -= PACKET_HEADER_MIN_SIZE;
|
|
if (asf->multi_payloads_present)
|
|
padsize--;
|
|
av_assert0(padsize >= 0);
|
|
|
|
avio_w8(pb, ASF_PACKET_ERROR_CORRECTION_FLAGS);
|
|
for (i = 0; i < ASF_PACKET_ERROR_CORRECTION_DATA_SIZE; i++)
|
|
avio_w8(pb, 0x0);
|
|
|
|
if (asf->multi_payloads_present)
|
|
iLengthTypeFlags |= ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT;
|
|
|
|
if (padsize > 0) {
|
|
if (padsize < 256)
|
|
iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE;
|
|
else
|
|
iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD;
|
|
}
|
|
avio_w8(pb, iLengthTypeFlags);
|
|
|
|
avio_w8(pb, ASF_PPI_PROPERTY_FLAGS);
|
|
|
|
if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD)
|
|
avio_wl16(pb, padsize - 2);
|
|
if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE)
|
|
avio_w8(pb, padsize - 1);
|
|
|
|
avio_wl32(pb, sendtime);
|
|
avio_wl16(pb, duration);
|
|
if (asf->multi_payloads_present)
|
|
avio_w8(pb, nb_payloads | ASF_PAYLOAD_FLAGS);
|
|
|
|
ppi_size = avio_tell(pb) - start;
|
|
|
|
return ppi_size;
|
|
}
|
|
|
|
static void flush_packet(AVFormatContext *s)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
int packet_hdr_size, packet_filled_size;
|
|
|
|
av_assert0(asf->packet_timestamp_end >= asf->packet_timestamp_start);
|
|
|
|
if (asf->is_streamed)
|
|
put_chunk(s, 0x4424, s->packet_size, 0);
|
|
|
|
packet_hdr_size = put_payload_parsing_info(s,
|
|
asf->packet_timestamp_start,
|
|
asf->packet_timestamp_end - asf->packet_timestamp_start,
|
|
asf->packet_nb_payloads,
|
|
asf->packet_size_left);
|
|
|
|
packet_filled_size = PACKET_SIZE - asf->packet_size_left;
|
|
av_assert0(packet_hdr_size <= asf->packet_size_left);
|
|
memset(asf->packet_buf + packet_filled_size, 0, asf->packet_size_left);
|
|
|
|
avio_write(s->pb, asf->packet_buf, s->packet_size - packet_hdr_size);
|
|
|
|
avio_flush(s->pb);
|
|
asf->nb_packets++;
|
|
asf->packet_nb_payloads = 0;
|
|
asf->packet_timestamp_start = -1;
|
|
asf->packet_timestamp_end = -1;
|
|
ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
|
|
NULL, NULL, NULL, NULL);
|
|
}
|
|
|
|
static void put_payload_header(AVFormatContext *s, ASFStream *stream,
|
|
int64_t presentation_time, int m_obj_size,
|
|
int m_obj_offset, int payload_len, int flags)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
AVIOContext *pb = &asf->pb;
|
|
int val;
|
|
|
|
val = stream->num;
|
|
if (flags & AV_PKT_FLAG_KEY)
|
|
val |= ASF_PL_FLAG_KEY_FRAME;
|
|
avio_w8(pb, val);
|
|
|
|
avio_w8(pb, stream->seq); // Media object number
|
|
avio_wl32(pb, m_obj_offset); // Offset Into Media Object
|
|
|
|
// Replicated Data shall be at least 8 bytes long.
|
|
// The first 4 bytes of data shall contain the
|
|
// Size of the Media Object that the payload belongs to.
|
|
// The next 4 bytes of data shall contain the
|
|
// Presentation Time for the media object that the payload belongs to.
|
|
avio_w8(pb, ASF_PAYLOAD_REPLICATED_DATA_LENGTH);
|
|
|
|
avio_wl32(pb, m_obj_size); // Replicated Data - Media Object Size
|
|
avio_wl32(pb, (uint32_t) presentation_time); // Replicated Data - Presentation Time
|
|
|
|
if (asf->multi_payloads_present) {
|
|
avio_wl16(pb, payload_len); // payload length
|
|
}
|
|
}
|
|
|
|
static void put_frame(AVFormatContext *s, ASFStream *stream, AVStream *avst,
|
|
int64_t timestamp, const uint8_t *buf,
|
|
int m_obj_size, int flags)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
int m_obj_offset, payload_len, frag_len1;
|
|
|
|
m_obj_offset = 0;
|
|
while (m_obj_offset < m_obj_size) {
|
|
payload_len = m_obj_size - m_obj_offset;
|
|
if (asf->packet_timestamp_start == -1) {
|
|
asf->multi_payloads_present = (payload_len < MULTI_PAYLOAD_CONSTANT);
|
|
|
|
asf->packet_size_left = PACKET_SIZE;
|
|
if (asf->multi_payloads_present) {
|
|
frag_len1 = MULTI_PAYLOAD_CONSTANT - 1;
|
|
} else {
|
|
frag_len1 = SINGLE_PAYLOAD_DATA_LENGTH;
|
|
}
|
|
asf->packet_timestamp_start = timestamp;
|
|
} else {
|
|
// multi payloads
|
|
frag_len1 = asf->packet_size_left -
|
|
PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS -
|
|
PACKET_HEADER_MIN_SIZE - 1;
|
|
|
|
if (frag_len1 < payload_len &&
|
|
avst->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
flush_packet(s);
|
|
continue;
|
|
}
|
|
}
|
|
if (frag_len1 > 0) {
|
|
if (payload_len > frag_len1)
|
|
payload_len = frag_len1;
|
|
else if (payload_len == (frag_len1 - 1))
|
|
payload_len = frag_len1 - 2; // additional byte need to put padding length
|
|
|
|
put_payload_header(s, stream, timestamp + PREROLL_TIME,
|
|
m_obj_size, m_obj_offset, payload_len, flags);
|
|
avio_write(&asf->pb, buf, payload_len);
|
|
|
|
if (asf->multi_payloads_present)
|
|
asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS);
|
|
else
|
|
asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD);
|
|
asf->packet_timestamp_end = timestamp;
|
|
|
|
asf->packet_nb_payloads++;
|
|
} else {
|
|
payload_len = 0;
|
|
}
|
|
m_obj_offset += payload_len;
|
|
buf += payload_len;
|
|
|
|
if (!asf->multi_payloads_present)
|
|
flush_packet(s);
|
|
else if (asf->packet_size_left <= (PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS + PACKET_HEADER_MIN_SIZE + 1))
|
|
flush_packet(s);
|
|
else if (asf->packet_nb_payloads == ASF_PAYLOADS_PER_PACKET)
|
|
flush_packet(s);
|
|
}
|
|
stream->seq++;
|
|
}
|
|
|
|
static int update_index(AVFormatContext *s, int start_sec,
|
|
uint32_t packet_number, uint16_t packet_count,
|
|
uint64_t packet_offset)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
|
|
if (start_sec > asf->next_start_sec) {
|
|
int i;
|
|
|
|
if (!asf->next_start_sec) {
|
|
asf->next_packet_number = packet_number;
|
|
asf->next_packet_count = packet_count;
|
|
asf->next_packet_offset = packet_offset;
|
|
}
|
|
|
|
if (start_sec > asf->nb_index_memory_alloc) {
|
|
int err;
|
|
asf->nb_index_memory_alloc = (start_sec + ASF_INDEX_BLOCK) & ~(ASF_INDEX_BLOCK - 1);
|
|
if ((err = av_reallocp_array(&asf->index_ptr,
|
|
asf->nb_index_memory_alloc,
|
|
sizeof(*asf->index_ptr))) < 0) {
|
|
asf->nb_index_memory_alloc = 0;
|
|
return err;
|
|
}
|
|
}
|
|
for (i = asf->next_start_sec; i < start_sec; i++) {
|
|
asf->index_ptr[i].packet_number = asf->next_packet_number;
|
|
asf->index_ptr[i].packet_count = asf->next_packet_count;
|
|
asf->index_ptr[i].send_time = asf->next_start_sec * INT64_C(10000000);
|
|
asf->index_ptr[i].offset = asf->next_packet_offset;
|
|
|
|
}
|
|
}
|
|
asf->maximum_packet = FFMAX(asf->maximum_packet, packet_count);
|
|
asf->next_packet_number = packet_number;
|
|
asf->next_packet_count = packet_count;
|
|
asf->next_packet_offset = packet_offset;
|
|
asf->next_start_sec = start_sec;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
AVIOContext *pb = s->pb;
|
|
ASFStream *stream;
|
|
AVCodecContext *codec;
|
|
uint32_t packet_number;
|
|
int64_t pts;
|
|
int start_sec;
|
|
int flags = pkt->flags;
|
|
int ret;
|
|
uint64_t offset = avio_tell(pb);
|
|
|
|
codec = s->streams[pkt->stream_index]->codec;
|
|
stream = &asf->streams[pkt->stream_index];
|
|
|
|
if (codec->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
flags &= ~AV_PKT_FLAG_KEY;
|
|
|
|
pts = (pkt->pts != AV_NOPTS_VALUE) ? pkt->pts : pkt->dts;
|
|
av_assert0(pts != AV_NOPTS_VALUE);
|
|
if ( pts < - PREROLL_TIME
|
|
|| pts > (INT_MAX-3)/10000LL * ASF_INDEXED_INTERVAL - PREROLL_TIME) {
|
|
av_log(s, AV_LOG_ERROR, "input pts %"PRId64" is invalid\n", pts);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
pts *= 10000;
|
|
asf->duration = FFMAX(asf->duration, pts + pkt->duration * 10000);
|
|
|
|
packet_number = asf->nb_packets;
|
|
put_frame(s, stream, s->streams[pkt->stream_index],
|
|
pkt->dts, pkt->data, pkt->size, flags);
|
|
|
|
start_sec = (int)((PREROLL_TIME * 10000 + pts + ASF_INDEXED_INTERVAL - 1)
|
|
/ ASF_INDEXED_INTERVAL);
|
|
|
|
/* check index */
|
|
if ((!asf->is_streamed) && (flags & AV_PKT_FLAG_KEY)) {
|
|
uint16_t packet_count = asf->nb_packets - packet_number;
|
|
ret = update_index(s, start_sec, packet_number, packet_count, offset);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
asf->end_sec = start_sec;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asf_write_index(AVFormatContext *s, const ASFIndex *index,
|
|
uint16_t max, uint32_t count)
|
|
{
|
|
AVIOContext *pb = s->pb;
|
|
int i;
|
|
|
|
ff_put_guid(pb, &ff_asf_simple_index_header);
|
|
avio_wl64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2) * count);
|
|
ff_put_guid(pb, &ff_asf_my_guid);
|
|
avio_wl64(pb, ASF_INDEXED_INTERVAL);
|
|
avio_wl32(pb, max);
|
|
avio_wl32(pb, count);
|
|
for (i = 0; i < count; i++) {
|
|
avio_wl32(pb, index[i].packet_number);
|
|
avio_wl16(pb, index[i].packet_count);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asf_write_trailer(AVFormatContext *s)
|
|
{
|
|
ASFContext *asf = s->priv_data;
|
|
int64_t file_size, data_size;
|
|
int ret;
|
|
|
|
/* flush the current packet */
|
|
if (asf->pb.buf_ptr > asf->pb.buffer)
|
|
flush_packet(s);
|
|
|
|
/* write index */
|
|
data_size = avio_tell(s->pb);
|
|
if (!asf->is_streamed && asf->next_start_sec) {
|
|
if ((ret = update_index(s, asf->end_sec + 1, 0, 0, 0)) < 0)
|
|
return ret;
|
|
asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->next_start_sec);
|
|
}
|
|
avio_flush(s->pb);
|
|
|
|
if (asf->is_streamed || !s->pb->seekable) {
|
|
put_chunk(s, 0x4524, 0, 0); /* end of stream */
|
|
} else {
|
|
/* rewrite an updated header */
|
|
file_size = avio_tell(s->pb);
|
|
avio_seek(s->pb, 0, SEEK_SET);
|
|
asf_write_header1(s, file_size, data_size - asf->data_offset);
|
|
}
|
|
|
|
av_freep(&asf->index_ptr);
|
|
return 0;
|
|
}
|
|
|
|
#if CONFIG_ASF_MUXER
|
|
AVOutputFormat ff_asf_muxer = {
|
|
.name = "asf",
|
|
.long_name = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming Format)"),
|
|
.mime_type = "video/x-ms-asf",
|
|
.extensions = "asf,wmv,wma",
|
|
.priv_data_size = sizeof(ASFContext),
|
|
.audio_codec = AV_CODEC_ID_WMAV2,
|
|
.video_codec = AV_CODEC_ID_MSMPEG4V3,
|
|
.write_header = asf_write_header,
|
|
.write_packet = asf_write_packet,
|
|
.write_trailer = asf_write_trailer,
|
|
.flags = AVFMT_GLOBALHEADER,
|
|
.codec_tag = (const AVCodecTag * const []) {
|
|
codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, 0
|
|
},
|
|
};
|
|
#endif /* CONFIG_ASF_MUXER */
|
|
|
|
#if CONFIG_ASF_STREAM_MUXER
|
|
AVOutputFormat ff_asf_stream_muxer = {
|
|
.name = "asf_stream",
|
|
.long_name = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming Format)"),
|
|
.mime_type = "video/x-ms-asf",
|
|
.extensions = "asf,wmv,wma",
|
|
.priv_data_size = sizeof(ASFContext),
|
|
.audio_codec = AV_CODEC_ID_WMAV2,
|
|
.video_codec = AV_CODEC_ID_MSMPEG4V3,
|
|
.write_header = asf_write_stream_header,
|
|
.write_packet = asf_write_packet,
|
|
.write_trailer = asf_write_trailer,
|
|
.flags = AVFMT_GLOBALHEADER,
|
|
.codec_tag = (const AVCodecTag * const []) {
|
|
codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, 0
|
|
},
|
|
};
|
|
#endif /* CONFIG_ASF_STREAM_MUXER */
|