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ffmpeg / libavformat / asf-enc.c @ 7caf0cc6

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1 542993b0 Konstantin Andreyev
/*
2 7fbde343 Aurelien Jacobs
 * Adaptive stream format 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
8 542993b0 Konstantin Andreyev
 * 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
15
 * 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 "avformat.h"
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#include "riff.h"
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#include "asf.h"
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#undef NDEBUG
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#include <assert.h>
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#define ASF_INDEXED_INTERVAL    10000000
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#define ASF_INDEX_BLOCK         600
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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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                )
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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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                )
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51
#define ASF_PPI_LENGTH_TYPE_FLAGS 0
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53
#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
57
#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
64
#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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68
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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
78
#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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                )
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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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                )
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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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                )
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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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                )
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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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                )
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190 7caf0cc6 Michael Niedermayer
static const AVCodecTag codec_asf_bmp_tags[] = {
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    { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
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    { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
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    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
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    { CODEC_ID_NONE, 0 },
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};
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static int preroll_time = 2000;
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static const uint8_t error_spread_ADPCM_G726[] = { 0x01, 0x90, 0x01, 0x90, 0x01, 0x01, 0x00, 0x00 };
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static void put_guid(ByteIOContext *s, const GUID *g)
202
{
203
    int i;
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    put_le32(s, g->v1);
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    put_le16(s, g->v2);
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    put_le16(s, g->v3);
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    for(i=0;i<8;i++)
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        put_byte(s, g->v4[i]);
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}
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static void put_str16(ByteIOContext *s, const char *tag)
213
{
214
    int c;
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    put_le16(s,strlen(tag) + 1);
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    for(;;) {
218
        c = (uint8_t)*tag++;
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        put_le16(s, c);
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        if (c == '\0')
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            break;
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    }
223
}
224
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static void put_str16_nolen(ByteIOContext *s, const char *tag)
226
{
227
    int c;
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    for(;;) {
230
        c = (uint8_t)*tag++;
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        put_le16(s, c);
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        if (c == '\0')
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            break;
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    }
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}
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static int64_t put_header(ByteIOContext *pb, const GUID *g)
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{
239
    int64_t pos;
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    pos = url_ftell(pb);
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    put_guid(pb, g);
243
    put_le64(pb, 24);
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    return pos;
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}
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/* update header size */
248
static void end_header(ByteIOContext *pb, int64_t pos)
249
{
250
    int64_t pos1;
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    pos1 = url_ftell(pb);
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    url_fseek(pb, pos + 16, SEEK_SET);
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    put_le64(pb, pos1 - pos);
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    url_fseek(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, int payload_length, int flags)
260
{
261
    ASFContext *asf = s->priv_data;
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    ByteIOContext *pb = &s->pb;
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    int length;
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    length = payload_length + 8;
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    put_le16(pb, type);
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    put_le16(pb, length);    //size
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    put_le32(pb, asf->seqno);//sequence number
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    put_le16(pb, flags); /* unknown bytes */
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    put_le16(pb, length);    //size_confirm
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    asf->seqno++;
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}
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/* convert from unix to windows time */
275
static int64_t unix_to_file_time(int ti)
276
{
277
    int64_t t;
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279 8da9266c Måns Rullgård
    t = ti * INT64_C(10000000);
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    t += INT64_C(116444736000000000);
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    return t;
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}
283
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/* write the header (used two times if non streamed) */
285
static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data_chunk_size)
286
{
287
    ASFContext *asf = s->priv_data;
288
    ByteIOContext *pb = &s->pb;
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    int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;
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    int has_title;
291
    AVCodecContext *enc;
292
    int64_t header_offset, cur_pos, hpos;
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    int bit_rate;
294 4336886c Brian Brice
    int64_t duration;
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296 4336886c Brian Brice
    duration = asf->duration + preroll_time * 10000;
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    has_title = (s->title[0] || s->author[0] || s->copyright[0] || s->comment[0]);
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    bit_rate = 0;
300
    for(n=0;n<s->nb_streams;n++) {
301 01f4895c Michael Niedermayer
        enc = s->streams[n]->codec;
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        av_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */
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        bit_rate += enc->bit_rate;
306
    }
307
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    if (asf->is_streamed) {
309
        put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */
310
    }
311
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    put_guid(pb, &asf_header);
313
    put_le64(pb, -1); /* header length, will be patched after */
314
    put_le32(pb, 3 + has_title + s->nb_streams); /* number of chunks in header */
315
    put_byte(pb, 1); /* ??? */
316
    put_byte(pb, 2); /* ??? */
317
318
    /* file header */
319
    header_offset = url_ftell(pb);
320
    hpos = put_header(pb, &file_header);
321
    put_guid(pb, &my_guid);
322
    put_le64(pb, file_size);
323
    file_time = 0;
324
    put_le64(pb, unix_to_file_time(file_time));
325
    put_le64(pb, asf->nb_packets); /* number of packets */
326 4336886c Brian Brice
    put_le64(pb, duration); /* end time stamp (in 100ns units) */
327
    put_le64(pb, duration); /* duration (in 100ns units) */
328 e928649b Michael Niedermayer
    put_le32(pb, preroll_time); /* start time stamp */
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    put_le32(pb, 0); /* ??? */
330
    put_le32(pb, asf->is_streamed ? 1 : 0); /* ??? */
331
    put_le32(pb, asf->packet_size); /* packet size */
332
    put_le32(pb, asf->packet_size); /* packet size */
333
    put_le32(pb, bit_rate); /* Nominal data rate in bps */
334
    end_header(pb, hpos);
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    /* unknown headers */
337
    hpos = put_header(pb, &head1_guid);
338
    put_guid(pb, &head2_guid);
339
    put_le32(pb, 6);
340
    put_le16(pb, 0);
341
    end_header(pb, hpos);
342
343
    /* title and other infos */
344
    if (has_title) {
345
        hpos = put_header(pb, &comment_header);
346 982e53fe Calcium
        if ( s->title[0]     ) { put_le16(pb, 2 * (strlen(s->title    ) + 1)); } else { put_le16(pb, 0); }
347
        if ( s->author[0]    ) { put_le16(pb, 2 * (strlen(s->author   ) + 1)); } else { put_le16(pb, 0); }
348
        if ( s->copyright[0] ) { put_le16(pb, 2 * (strlen(s->copyright) + 1)); } else { put_le16(pb, 0); }
349
        if ( s->comment[0]   ) { put_le16(pb, 2 * (strlen(s->comment  ) + 1)); } else { put_le16(pb, 0); }
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        put_le16(pb, 0);
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        if ( s->title[0]     ) put_str16_nolen(pb, s->title);
352
        if ( s->author[0]    ) put_str16_nolen(pb, s->author);
353
        if ( s->copyright[0] ) put_str16_nolen(pb, s->copyright);
354
        if ( s->comment[0]   ) put_str16_nolen(pb, s->comment);
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        end_header(pb, hpos);
356
    }
357
358
    /* stream headers */
359
    for(n=0;n<s->nb_streams;n++) {
360
        int64_t es_pos;
361 a97c1e93 Stefan Huehner
        const uint8_t *er_spr = NULL;
362 982e53fe Calcium
        int er_spr_len = 0;
363 542993b0 Konstantin Andreyev
        //        ASFStream *stream = &asf->streams[n];
364
365 01f4895c Michael Niedermayer
        enc = s->streams[n]->codec;
366 542993b0 Konstantin Andreyev
        asf->streams[n].num = n + 1;
367
        asf->streams[n].seq = 0;
368
369 115329f1 Diego Biurrun
370 982e53fe Calcium
        if (enc->codec_type == CODEC_TYPE_AUDIO) {
371
            if (enc->codec_id == CODEC_ID_ADPCM_G726) {
372 a97c1e93 Stefan Huehner
                er_spr     = error_spread_ADPCM_G726;
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                er_spr_len = sizeof(error_spread_ADPCM_G726);
374
            }
375
        }
376
377 542993b0 Konstantin Andreyev
        switch(enc->codec_type) {
378
        case CODEC_TYPE_AUDIO:
379
            wav_extra_size = 0;
380
            extra_size = 18 + wav_extra_size;
381 982e53fe Calcium
            extra_size2 = er_spr_len;
382 542993b0 Konstantin Andreyev
            break;
383
        default:
384
        case CODEC_TYPE_VIDEO:
385 982e53fe Calcium
            wav_extra_size = enc->extradata_size;
386
            extra_size = 0x33 + wav_extra_size;
387 542993b0 Konstantin Andreyev
            extra_size2 = 0;
388
            break;
389
        }
390
391
        hpos = put_header(pb, &stream_header);
392
        if (enc->codec_type == CODEC_TYPE_AUDIO) {
393
            put_guid(pb, &audio_stream);
394 982e53fe Calcium
            if ((er_spr != NULL) && (er_spr_len != 0)) {
395
                put_guid(pb, &audio_conceal_spread);
396
            } else {
397
                put_guid(pb, &video_conceal_none);
398
            }
399 542993b0 Konstantin Andreyev
        } else {
400
            put_guid(pb, &video_stream);
401
            put_guid(pb, &video_conceal_none);
402
        }
403
        put_le64(pb, 0); /* ??? */
404
        es_pos = url_ftell(pb);
405
        put_le32(pb, extra_size); /* wav header len */
406
        put_le32(pb, extra_size2); /* additional data len */
407
        put_le16(pb, n + 1); /* stream number */
408
        put_le32(pb, 0); /* ??? */
409
410
        if (enc->codec_type == CODEC_TYPE_AUDIO) {
411
            /* WAVEFORMATEX header */
412
            int wavsize = put_wav_header(pb, enc);
413 982e53fe Calcium
            if ((enc->codec_id != CODEC_ID_MP3) && (enc->codec_id != CODEC_ID_MP2) && (enc->codec_id != CODEC_ID_ADPCM_IMA_WAV) && (enc->extradata_size==0)) {
414
                wavsize += 2;
415
                put_le16(pb, 0);
416
            }
417 542993b0 Konstantin Andreyev
418
            if (wavsize < 0)
419
                return -1;
420
            if (wavsize != extra_size) {
421
                cur_pos = url_ftell(pb);
422
                url_fseek(pb, es_pos, SEEK_SET);
423
                put_le32(pb, wavsize); /* wav header len */
424
                url_fseek(pb, cur_pos, SEEK_SET);
425
            }
426 982e53fe Calcium
            /* ERROR Correction */
427
            if ((er_spr != NULL) && (er_spr_len != 0))
428
                put_buffer(pb, er_spr, er_spr_len);
429 542993b0 Konstantin Andreyev
        } else {
430
            put_le32(pb, enc->width);
431
            put_le32(pb, enc->height);
432
            put_byte(pb, 2); /* ??? */
433 982e53fe Calcium
            put_le16(pb, 40 + enc->extradata_size); /* size */
434 542993b0 Konstantin Andreyev
435
            /* BITMAPINFOHEADER header */
436
            put_bmp_header(pb, enc, codec_bmp_tags, 1);
437
        }
438
        end_header(pb, hpos);
439
    }
440
441
    /* media comments */
442
443
    hpos = put_header(pb, &codec_comment_header);
444
    put_guid(pb, &codec_comment1_header);
445
    put_le32(pb, s->nb_streams);
446
    for(n=0;n<s->nb_streams;n++) {
447
        AVCodec *p;
448
449 01f4895c Michael Niedermayer
        enc = s->streams[n]->codec;
450 542993b0 Konstantin Andreyev
        p = avcodec_find_encoder(enc->codec_id);
451
452
        put_le16(pb, asf->streams[n].num);
453
        put_str16(pb, p ? p->name : enc->codec_name);
454
        put_le16(pb, 0); /* no parameters */
455 115329f1 Diego Biurrun
456
457 542993b0 Konstantin Andreyev
        /* id */
458
        if (enc->codec_type == CODEC_TYPE_AUDIO) {
459
            put_le16(pb, 2);
460
            if(!enc->codec_tag)
461
                enc->codec_tag = codec_get_tag(codec_wav_tags, enc->codec_id);
462
            if(!enc->codec_tag)
463
                return -1;
464
            put_le16(pb, enc->codec_tag);
465
        } else {
466
            put_le16(pb, 4);
467
            if(!enc->codec_tag)
468
                enc->codec_tag = codec_get_tag(codec_bmp_tags, enc->codec_id);
469
            if(!enc->codec_tag)
470
                return -1;
471
            put_le32(pb, enc->codec_tag);
472
        }
473
    }
474
    end_header(pb, hpos);
475
476
    /* patch the header size fields */
477
478
    cur_pos = url_ftell(pb);
479
    header_size = cur_pos - header_offset;
480
    if (asf->is_streamed) {
481
        header_size += 8 + 30 + 50;
482
483
        url_fseek(pb, header_offset - 10 - 30, SEEK_SET);
484
        put_le16(pb, header_size);
485
        url_fseek(pb, header_offset - 2 - 30, SEEK_SET);
486
        put_le16(pb, header_size);
487
488
        header_size -= 8 + 30 + 50;
489
    }
490
    header_size += 24 + 6;
491
    url_fseek(pb, header_offset - 14, SEEK_SET);
492
    put_le64(pb, header_size);
493
    url_fseek(pb, cur_pos, SEEK_SET);
494
495
    /* movie chunk, followed by packets of packet_size */
496
    asf->data_offset = cur_pos;
497
    put_guid(pb, &data_header);
498
    put_le64(pb, data_chunk_size);
499
    put_guid(pb, &my_guid);
500
    put_le64(pb, asf->nb_packets); /* nb packets */
501
    put_byte(pb, 1); /* ??? */
502
    put_byte(pb, 1); /* ??? */
503
    return 0;
504
}
505
506
static int asf_write_header(AVFormatContext *s)
507
{
508
    ASFContext *asf = s->priv_data;
509
510
    asf->packet_size = PACKET_SIZE;
511
    asf->nb_packets = 0;
512 115329f1 Diego Biurrun
513 982e53fe Calcium
    asf->last_indexed_pts = 0;
514
    asf->index_ptr = (ASFIndex*)av_malloc( sizeof(ASFIndex) * ASF_INDEX_BLOCK );
515
    asf->nb_index_memory_alloc = ASF_INDEX_BLOCK;
516
    asf->nb_index_count = 0;
517
    asf->maximum_packet = 0;
518 542993b0 Konstantin Andreyev
519
    if (asf_write_header1(s, 0, 50) < 0) {
520
        //av_free(asf);
521
        return -1;
522
    }
523
524
    put_flush_packet(&s->pb);
525
526 615b92fd Konstantin Andreyev
    asf->packet_nb_payloads = 0;
527
    asf->prev_packet_sent_time = 0;
528 542993b0 Konstantin Andreyev
    asf->packet_timestamp_start = -1;
529
    asf->packet_timestamp_end = -1;
530
    init_put_byte(&asf->pb, asf->packet_buf, asf->packet_size, 1,
531
                  NULL, NULL, NULL, NULL);
532
533
    return 0;
534
}
535
536
static int asf_write_stream_header(AVFormatContext *s)
537
{
538
    ASFContext *asf = s->priv_data;
539
540
    asf->is_streamed = 1;
541
542
    return asf_write_header(s);
543
}
544
545 615b92fd Konstantin Andreyev
static int put_payload_parsing_info(
546
                                AVFormatContext *s,
547 115329f1 Diego Biurrun
                                unsigned int    sendtime,
548 615b92fd Konstantin Andreyev
                                unsigned int    duration,
549 115329f1 Diego Biurrun
                                int             nb_payloads,
550 615b92fd Konstantin Andreyev
                                int             padsize
551
            )
552 542993b0 Konstantin Andreyev
{
553
    ASFContext *asf = s->priv_data;
554
    ByteIOContext *pb = &s->pb;
555 615b92fd Konstantin Andreyev
    int ppi_size, i;
556
    unsigned char *start_ppi_ptr = pb->buf_ptr;
557
558
    int iLengthTypeFlags = ASF_PPI_LENGTH_TYPE_FLAGS;
559 115329f1 Diego Biurrun
560 615b92fd Konstantin Andreyev
    put_byte(pb, ASF_PACKET_ERROR_CORRECTION_FLAGS);
561
    for (i = 0; i < ASF_PACKET_ERROR_CORRECTION_DATA_SIZE; i++){
562
        put_byte(pb, 0x0);
563 542993b0 Konstantin Andreyev
    }
564
565 615b92fd Konstantin Andreyev
    if (asf->multi_payloads_present)
566
        iLengthTypeFlags |= ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT;
567 542993b0 Konstantin Andreyev
568
    if (padsize > 0) {
569
        if (padsize < 256)
570 615b92fd Konstantin Andreyev
            iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE;
571 542993b0 Konstantin Andreyev
        else
572 615b92fd Konstantin Andreyev
            iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD;
573 542993b0 Konstantin Andreyev
    }
574 615b92fd Konstantin Andreyev
    put_byte(pb, iLengthTypeFlags);
575
576
    put_byte(pb, ASF_PPI_PROPERTY_FLAGS);
577
578
    if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD)
579 542993b0 Konstantin Andreyev
        put_le16(pb, padsize - 2);
580 615b92fd Konstantin Andreyev
    if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE)
581 542993b0 Konstantin Andreyev
        put_byte(pb, padsize - 1);
582 615b92fd Konstantin Andreyev
583
    put_le32(pb, sendtime);
584 542993b0 Konstantin Andreyev
    put_le16(pb, duration);
585 615b92fd Konstantin Andreyev
    if (asf->multi_payloads_present)
586
        put_byte(pb, nb_payloads | ASF_PAYLOAD_FLAGS);
587
588
    ppi_size = pb->buf_ptr - start_ppi_ptr;
589 542993b0 Konstantin Andreyev
590 615b92fd Konstantin Andreyev
    return ppi_size;
591 542993b0 Konstantin Andreyev
}
592
593
static void flush_packet(AVFormatContext *s)
594
{
595
    ASFContext *asf = s->priv_data;
596 615b92fd Konstantin Andreyev
    int packet_hdr_size, packet_filled_size;
597 542993b0 Konstantin Andreyev
598 615b92fd Konstantin Andreyev
    if (asf->is_streamed) {
599
        put_chunk(s, 0x4424, asf->packet_size, 0);
600
    }
601
602
    packet_hdr_size = put_payload_parsing_info(
603
                            s,
604
                            asf->packet_timestamp_start,
605
                            asf->packet_timestamp_end - asf->packet_timestamp_start,
606
                            asf->packet_nb_payloads,
607
                            asf->packet_size_left
608
                        );
609 542993b0 Konstantin Andreyev
610 615b92fd Konstantin Andreyev
    packet_filled_size = PACKET_SIZE - packet_hdr_size - asf->packet_size_left;
611
    memset(asf->packet_buf + packet_filled_size, 0, asf->packet_size_left);
612 542993b0 Konstantin Andreyev
613 615b92fd Konstantin Andreyev
    put_buffer(&s->pb, asf->packet_buf, asf->packet_size - packet_hdr_size);
614 542993b0 Konstantin Andreyev
615
    put_flush_packet(&s->pb);
616
    asf->nb_packets++;
617 615b92fd Konstantin Andreyev
    asf->packet_nb_payloads = 0;
618
    asf->prev_packet_sent_time = asf->packet_timestamp_start;
619 542993b0 Konstantin Andreyev
    asf->packet_timestamp_start = -1;
620
    asf->packet_timestamp_end = -1;
621
    init_put_byte(&asf->pb, asf->packet_buf, asf->packet_size, 1,
622
                  NULL, NULL, NULL, NULL);
623
}
624
625 615b92fd Konstantin Andreyev
static void put_payload_header(
626
                                AVFormatContext *s,
627
                                ASFStream       *stream,
628
                                int             presentation_time,
629
                                int             m_obj_size,
630
                                int             m_obj_offset,
631 3c895fc0 Michael Niedermayer
                                int             payload_len,
632
                                int             flags
633 615b92fd Konstantin Andreyev
            )
634 542993b0 Konstantin Andreyev
{
635
    ASFContext *asf = s->priv_data;
636
    ByteIOContext *pb = &asf->pb;
637
    int val;
638 115329f1 Diego Biurrun
639 542993b0 Konstantin Andreyev
    val = stream->num;
640 3c895fc0 Michael Niedermayer
    if (flags & PKT_FLAG_KEY)
641 615b92fd Konstantin Andreyev
        val |= ASF_PL_FLAG_KEY_FRAME;
642 542993b0 Konstantin Andreyev
    put_byte(pb, val);
643 115329f1 Diego Biurrun
644 615b92fd Konstantin Andreyev
    put_byte(pb, stream->seq);  //Media object number
645
    put_le32(pb, m_obj_offset); //Offset Into Media Object
646 115329f1 Diego Biurrun
647 615b92fd Konstantin Andreyev
    // Replicated Data shall be at least 8 bytes long.
648 115329f1 Diego Biurrun
    // The first 4 bytes of data shall contain the
649 615b92fd Konstantin Andreyev
    // Size of the Media Object that the payload belongs to.
650 115329f1 Diego Biurrun
    // The next 4 bytes of data shall contain the
651 615b92fd Konstantin Andreyev
    // Presentation Time for the media object that the payload belongs to.
652
    put_byte(pb, ASF_PAYLOAD_REPLICATED_DATA_LENGTH);
653
654
    put_le32(pb, m_obj_size);       //Replicated Data - Media Object Size
655
    put_le32(pb, presentation_time);//Replicated Data - Presentation Time
656 115329f1 Diego Biurrun
657 615b92fd Konstantin Andreyev
    if (asf->multi_payloads_present){
658
        put_le16(pb, payload_len);   //payload length
659
    }
660 542993b0 Konstantin Andreyev
}
661
662 615b92fd Konstantin Andreyev
static void put_frame(
663
                    AVFormatContext *s,
664
                    ASFStream       *stream,
665 bb270c08 Diego Biurrun
                    int             timestamp,
666 615b92fd Konstantin Andreyev
                    const uint8_t   *buf,
667 bb270c08 Diego Biurrun
                    int             m_obj_size,
668 3c895fc0 Michael Niedermayer
                    int             flags
669 bb270c08 Diego Biurrun
                )
670 542993b0 Konstantin Andreyev
{
671
    ASFContext *asf = s->priv_data;
672 615b92fd Konstantin Andreyev
    int m_obj_offset, payload_len, frag_len1;
673
674
    m_obj_offset = 0;
675
    while (m_obj_offset < m_obj_size) {
676
        payload_len = m_obj_size - m_obj_offset;
677
        if (asf->packet_timestamp_start == -1) {
678
            asf->multi_payloads_present = (payload_len < MULTI_PAYLOAD_CONSTANT);
679 115329f1 Diego Biurrun
680 615b92fd Konstantin Andreyev
            if (asf->multi_payloads_present){
681
                asf->packet_size_left = PACKET_SIZE; //For debug
682
                asf->packet_size_left = PACKET_SIZE - PACKET_HEADER_MIN_SIZE - 1;
683
                frag_len1 = MULTI_PAYLOAD_CONSTANT - 1;
684
            }
685
            else {
686
                asf->packet_size_left = PACKET_SIZE - PACKET_HEADER_MIN_SIZE;
687
                frag_len1 = SINGLE_PAYLOAD_DATA_LENGTH;
688
            }
689
            if (asf->prev_packet_sent_time > timestamp)
690
                asf->packet_timestamp_start = asf->prev_packet_sent_time;
691
            else
692
                asf->packet_timestamp_start = timestamp;
693
        }
694
        else {
695
            // multi payloads
696
            frag_len1 = asf->packet_size_left - PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS;
697 542993b0 Konstantin Andreyev
698 615b92fd Konstantin Andreyev
            if (asf->prev_packet_sent_time > timestamp)
699
                asf->packet_timestamp_start = asf->prev_packet_sent_time;
700
            else if (asf->packet_timestamp_start >= timestamp)
701
                asf->packet_timestamp_start = timestamp;
702
        }
703 542993b0 Konstantin Andreyev
        if (frag_len1 > 0) {
704 615b92fd Konstantin Andreyev
            if (payload_len > frag_len1)
705
                payload_len = frag_len1;
706
            else if (payload_len == (frag_len1 - 1))
707
                payload_len = frag_len1 - 2;  //additional byte need to put padding length
708 115329f1 Diego Biurrun
709 3c895fc0 Michael Niedermayer
            put_payload_header(s, stream, timestamp+preroll_time, m_obj_size, m_obj_offset, payload_len, flags);
710 615b92fd Konstantin Andreyev
            put_buffer(&asf->pb, buf, payload_len);
711
712
            if (asf->multi_payloads_present)
713
                asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS);
714
            else
715
                asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD);
716 542993b0 Konstantin Andreyev
            asf->packet_timestamp_end = timestamp;
717 115329f1 Diego Biurrun
718 615b92fd Konstantin Andreyev
            asf->packet_nb_payloads++;
719 542993b0 Konstantin Andreyev
        } else {
720 615b92fd Konstantin Andreyev
            payload_len = 0;
721 542993b0 Konstantin Andreyev
        }
722 615b92fd Konstantin Andreyev
        m_obj_offset += payload_len;
723
        buf += payload_len;
724
725
        if (!asf->multi_payloads_present)
726
            flush_packet(s);
727
        else if (asf->packet_size_left <= (PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS + 1))
728 542993b0 Konstantin Andreyev
            flush_packet(s);
729
    }
730
    stream->seq++;
731
}
732
733 e928649b Michael Niedermayer
static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
734 542993b0 Konstantin Andreyev
{
735
    ASFContext *asf = s->priv_data;
736
    ASFStream *stream;
737
    int64_t duration;
738
    AVCodecContext *codec;
739 115329f1 Diego Biurrun
    int64_t packet_st,pts;
740 982e53fe Calcium
    int start_sec,i;
741 542993b0 Konstantin Andreyev
742 01f4895c Michael Niedermayer
    codec = s->streams[pkt->stream_index]->codec;
743 e928649b Michael Niedermayer
    stream = &asf->streams[pkt->stream_index];
744 542993b0 Konstantin Andreyev
745 982e53fe Calcium
    //XXX /FIXME use duration from AVPacket (quick hack by)
746
    pts = (pkt->pts != AV_NOPTS_VALUE) ? pkt->pts : pkt->dts;
747
    if (pts == AV_NOPTS_VALUE) {
748
        if (codec->codec_type == CODEC_TYPE_AUDIO) {
749 8da9266c Måns Rullgård
            duration = (codec->frame_number * (int64_t)codec->frame_size * INT64_C(10000000)) /
750 982e53fe Calcium
                codec->sample_rate;
751
        } else {
752 c0df9d75 Michael Niedermayer
            duration = av_rescale(codec->frame_number * (int64_t)codec->time_base.num, 10000000, codec->time_base.den);
753 982e53fe Calcium
        }
754 542993b0 Konstantin Andreyev
    } else {
755 982e53fe Calcium
        duration = pts * 10000;
756 542993b0 Konstantin Andreyev
    }
757
    if (duration > asf->duration)
758
        asf->duration = duration;
759
760 982e53fe Calcium
    packet_st = asf->nb_packets;
761 3c895fc0 Michael Niedermayer
    put_frame(s, stream, pkt->pts, pkt->data, pkt->size, pkt->flags);
762 982e53fe Calcium
763
    /* check index */
764
    if ((!asf->is_streamed) && (codec->codec_type == CODEC_TYPE_VIDEO) && (pkt->flags & PKT_FLAG_KEY)) {
765 8da9266c Måns Rullgård
        start_sec = (int)(duration / INT64_C(10000000));
766
        if (start_sec != (int)(asf->last_indexed_pts / INT64_C(10000000))) {
767 982e53fe Calcium
            for(i=asf->nb_index_count;i<start_sec;i++) {
768
                if (i>=asf->nb_index_memory_alloc) {
769
                    asf->nb_index_memory_alloc += ASF_INDEX_BLOCK;
770
                    asf->index_ptr = (ASFIndex*)av_realloc( asf->index_ptr, sizeof(ASFIndex) * asf->nb_index_memory_alloc );
771
                }
772
                // store
773
                asf->index_ptr[i].packet_number = (uint32_t)packet_st;
774
                asf->index_ptr[i].packet_count  = (uint16_t)(asf->nb_packets-packet_st);
775
                if (asf->maximum_packet < (uint16_t)(asf->nb_packets-packet_st))
776
                    asf->maximum_packet = (uint16_t)(asf->nb_packets-packet_st);
777
            }
778
            asf->nb_index_count = start_sec;
779
            asf->last_indexed_pts = duration;
780
        }
781
    }
782
    return 0;
783
}
784
785
//
786
static int asf_write_index(AVFormatContext *s, ASFIndex *index, uint16_t max, uint32_t count)
787
{
788
    ByteIOContext *pb = &s->pb;
789
    int i;
790
791
    put_guid(pb, &simple_index_header);
792
    put_le64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2)*count);
793
    put_guid(pb, &my_guid);
794
    put_le64(pb, ASF_INDEXED_INTERVAL);
795
    put_le32(pb, max);
796
    put_le32(pb, count);
797
    for(i=0; i<count; i++) {
798
        put_le32(pb, index[i].packet_number);
799
        put_le16(pb, index[i].packet_count);
800
    }
801
802 542993b0 Konstantin Andreyev
    return 0;
803
}
804
805
static int asf_write_trailer(AVFormatContext *s)
806
{
807
    ASFContext *asf = s->priv_data;
808 982e53fe Calcium
    int64_t file_size,data_size;
809 542993b0 Konstantin Andreyev
810
    /* flush the current packet */
811
    if (asf->pb.buf_ptr > asf->pb.buffer)
812
        flush_packet(s);
813
814 982e53fe Calcium
    /* write index */
815
    data_size = url_ftell(&s->pb);
816
    if ((!asf->is_streamed) && (asf->nb_index_count != 0)) {
817
        asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->nb_index_count);
818
    }
819
    put_flush_packet(&s->pb);
820
821 542993b0 Konstantin Andreyev
    if (asf->is_streamed) {
822
        put_chunk(s, 0x4524, 0, 0); /* end of stream */
823
    } else {
824
        /* rewrite an updated header */
825
        file_size = url_ftell(&s->pb);
826
        url_fseek(&s->pb, 0, SEEK_SET);
827 982e53fe Calcium
        asf_write_header1(s, file_size, data_size - asf->data_offset);
828 542993b0 Konstantin Andreyev
    }
829
830
    put_flush_packet(&s->pb);
831 982e53fe Calcium
    av_free(asf->index_ptr);
832 542993b0 Konstantin Andreyev
    return 0;
833
}
834
835 ff70e601 Måns Rullgård
#ifdef CONFIG_ASF_MUXER
836 d2a067d1 Måns Rullgård
AVOutputFormat asf_muxer = {
837 542993b0 Konstantin Andreyev
    "asf",
838
    "asf format",
839
    "video/x-ms-asf",
840 87094371 Michael Niedermayer
    "asf,wmv,wma",
841 542993b0 Konstantin Andreyev
    sizeof(ASFContext),
842 6ebe07fb Diego Biurrun
#ifdef CONFIG_LIBMP3LAME
843 542993b0 Konstantin Andreyev
    CODEC_ID_MP3,
844
#else
845
    CODEC_ID_MP2,
846
#endif
847
    CODEC_ID_MSMPEG4V3,
848
    asf_write_header,
849
    asf_write_packet,
850
    asf_write_trailer,
851 982e53fe Calcium
    .flags = AVFMT_GLOBALHEADER,
852 7caf0cc6 Michael Niedermayer
    .codec_tag= {codec_asf_bmp_tags, codec_bmp_tags, codec_wav_tags},
853 542993b0 Konstantin Andreyev
};
854 ff70e601 Måns Rullgård
#endif
855 542993b0 Konstantin Andreyev
856 ff70e601 Måns Rullgård
#ifdef CONFIG_ASF_STREAM_MUXER
857 d2a067d1 Måns Rullgård
AVOutputFormat asf_stream_muxer = {
858 542993b0 Konstantin Andreyev
    "asf_stream",
859
    "asf format",
860
    "video/x-ms-asf",
861 87094371 Michael Niedermayer
    "asf,wmv,wma",
862 542993b0 Konstantin Andreyev
    sizeof(ASFContext),
863 6ebe07fb Diego Biurrun
#ifdef CONFIG_LIBMP3LAME
864 542993b0 Konstantin Andreyev
    CODEC_ID_MP3,
865
#else
866
    CODEC_ID_MP2,
867
#endif
868
    CODEC_ID_MSMPEG4V3,
869
    asf_write_stream_header,
870
    asf_write_packet,
871
    asf_write_trailer,
872 982e53fe Calcium
    .flags = AVFMT_GLOBALHEADER,
873 7caf0cc6 Michael Niedermayer
    .codec_tag= {codec_asf_bmp_tags, codec_bmp_tags, codec_wav_tags},
874 542993b0 Konstantin Andreyev
};
875 ff70e601 Måns Rullgård
#endif //CONFIG_ASF_STREAM_MUXER