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ffmpeg / libavformat / asf-enc.c @ 0d9f8633

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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
10 b78e7197 Diego Biurrun
 * 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
18 b78e7197 Diego Biurrun
 * 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"
22 9d9f4119 Måns Rullgård
#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 (\
34 bb270c08 Diego Biurrun
                ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \
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                ASF_PACKET_ERROR_CORRECTION_DATA_SIZE\
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                )
37 615b92fd Konstantin Andreyev
38
#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
43
44
#define ASF_PPI_PROPERTY_FLAGS (\
45 bb270c08 Diego Biurrun
                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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                )
50 615b92fd Konstantin Andreyev
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))
56
#   define ASF_PPI_SEQUENCE_FIELD_SIZE 1
57
#endif
58
#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
59
#   define ASF_PPI_SEQUENCE_FIELD_SIZE 2
60
#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
63
#endif
64
#ifndef ASF_PPI_SEQUENCE_FIELD_SIZE
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#   define ASF_PPI_SEQUENCE_FIELD_SIZE 0
66
#endif
67
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
75
#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
126
#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
130
#ifndef ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE
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#   define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 0
132
#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
136
#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
142
#endif
143
144
#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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160
#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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                )
167 115329f1 Diego Biurrun
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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 \
181
                )
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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 24c14d6d Michael Niedermayer
    assert(sizeof(*g) == 16);
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    put_buffer(s, g, sizeof(*g));
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}
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static void put_str16_nolen(ByteIOContext *s, const char *tag);
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static void put_str16(ByteIOContext *s, const char *tag)
209
{
210
    put_le16(s,strlen(tag) + 1);
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    put_str16_nolen(s, tag);
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}
213
214
static void put_str16_nolen(ByteIOContext *s, const char *tag)
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{
216
    int c;
217
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    do{
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        c = (uint8_t)*tag++;
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        put_le16(s, c);
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    }while(c);
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}
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224
static int64_t put_header(ByteIOContext *pb, const GUID *g)
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{
226
    int64_t pos;
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228
    pos = url_ftell(pb);
229
    put_guid(pb, g);
230
    put_le64(pb, 24);
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    return pos;
232
}
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/* update header size */
235
static void end_header(ByteIOContext *pb, int64_t pos)
236
{
237
    int64_t pos1;
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    pos1 = url_ftell(pb);
240
    url_fseek(pb, pos + 16, SEEK_SET);
241
    put_le64(pb, pos1 - pos);
242
    url_fseek(pb, pos1, SEEK_SET);
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}
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/* write an asf chunk (only used in streaming case) */
246
static void put_chunk(AVFormatContext *s, int type, int payload_length, int flags)
247
{
248
    ASFContext *asf = s->priv_data;
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    ByteIOContext *pb = &s->pb;
250
    int length;
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    length = payload_length + 8;
253
    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++;
259
}
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261
/* convert from unix to windows time */
262
static int64_t unix_to_file_time(int ti)
263
{
264
    int64_t t;
265
266 8da9266c Måns Rullgård
    t = ti * INT64_C(10000000);
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    t += INT64_C(116444736000000000);
268 542993b0 Konstantin Andreyev
    return t;
269
}
270
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/* write the header (used two times if non streamed) */
272
static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data_chunk_size)
273
{
274
    ASFContext *asf = s->priv_data;
275
    ByteIOContext *pb = &s->pb;
276
    int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;
277
    int has_title;
278
    AVCodecContext *enc;
279
    int64_t header_offset, cur_pos, hpos;
280
    int bit_rate;
281 4336886c Brian Brice
    int64_t duration;
282 542993b0 Konstantin Andreyev
283 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;
287
    for(n=0;n<s->nb_streams;n++) {
288 01f4895c Michael Niedermayer
        enc = s->streams[n]->codec;
289 542993b0 Konstantin Andreyev
290 9ee91c2f Michael Niedermayer
        av_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */
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        bit_rate += enc->bit_rate;
293
    }
294
295
    if (asf->is_streamed) {
296
        put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */
297
    }
298
299
    put_guid(pb, &asf_header);
300
    put_le64(pb, -1); /* header length, will be patched after */
301
    put_le32(pb, 3 + has_title + s->nb_streams); /* number of chunks in header */
302
    put_byte(pb, 1); /* ??? */
303
    put_byte(pb, 2); /* ??? */
304
305
    /* file header */
306
    header_offset = url_ftell(pb);
307
    hpos = put_header(pb, &file_header);
308
    put_guid(pb, &my_guid);
309
    put_le64(pb, file_size);
310
    file_time = 0;
311
    put_le64(pb, unix_to_file_time(file_time));
312
    put_le64(pb, asf->nb_packets); /* number of packets */
313 4336886c Brian Brice
    put_le64(pb, duration); /* end time stamp (in 100ns units) */
314
    put_le64(pb, duration); /* duration (in 100ns units) */
315 e928649b Michael Niedermayer
    put_le32(pb, preroll_time); /* start time stamp */
316 542993b0 Konstantin Andreyev
    put_le32(pb, 0); /* ??? */
317
    put_le32(pb, asf->is_streamed ? 1 : 0); /* ??? */
318
    put_le32(pb, asf->packet_size); /* packet size */
319
    put_le32(pb, asf->packet_size); /* packet size */
320
    put_le32(pb, bit_rate); /* Nominal data rate in bps */
321
    end_header(pb, hpos);
322
323
    /* unknown headers */
324
    hpos = put_header(pb, &head1_guid);
325
    put_guid(pb, &head2_guid);
326
    put_le32(pb, 6);
327
    put_le16(pb, 0);
328
    end_header(pb, hpos);
329
330
    /* title and other infos */
331
    if (has_title) {
332
        hpos = put_header(pb, &comment_header);
333 982e53fe Calcium
        if ( s->title[0]     ) { put_le16(pb, 2 * (strlen(s->title    ) + 1)); } else { put_le16(pb, 0); }
334
        if ( s->author[0]    ) { put_le16(pb, 2 * (strlen(s->author   ) + 1)); } else { put_le16(pb, 0); }
335
        if ( s->copyright[0] ) { put_le16(pb, 2 * (strlen(s->copyright) + 1)); } else { put_le16(pb, 0); }
336
        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);
338 982e53fe Calcium
        if ( s->title[0]     ) put_str16_nolen(pb, s->title);
339
        if ( s->author[0]    ) put_str16_nolen(pb, s->author);
340
        if ( s->copyright[0] ) put_str16_nolen(pb, s->copyright);
341
        if ( s->comment[0]   ) put_str16_nolen(pb, s->comment);
342 542993b0 Konstantin Andreyev
        end_header(pb, hpos);
343
    }
344
345
    /* stream headers */
346
    for(n=0;n<s->nb_streams;n++) {
347
        int64_t es_pos;
348 a97c1e93 Stefan Huehner
        const uint8_t *er_spr = NULL;
349 982e53fe Calcium
        int er_spr_len = 0;
350 542993b0 Konstantin Andreyev
        //        ASFStream *stream = &asf->streams[n];
351
352 01f4895c Michael Niedermayer
        enc = s->streams[n]->codec;
353 542993b0 Konstantin Andreyev
        asf->streams[n].num = n + 1;
354
        asf->streams[n].seq = 0;
355
356 115329f1 Diego Biurrun
357 982e53fe Calcium
        if (enc->codec_type == CODEC_TYPE_AUDIO) {
358
            if (enc->codec_id == CODEC_ID_ADPCM_G726) {
359 a97c1e93 Stefan Huehner
                er_spr     = error_spread_ADPCM_G726;
360 982e53fe Calcium
                er_spr_len = sizeof(error_spread_ADPCM_G726);
361
            }
362
        }
363
364 542993b0 Konstantin Andreyev
        switch(enc->codec_type) {
365
        case CODEC_TYPE_AUDIO:
366
            wav_extra_size = 0;
367
            extra_size = 18 + wav_extra_size;
368 982e53fe Calcium
            extra_size2 = er_spr_len;
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            break;
370
        default:
371
        case CODEC_TYPE_VIDEO:
372 982e53fe Calcium
            wav_extra_size = enc->extradata_size;
373
            extra_size = 0x33 + wav_extra_size;
374 542993b0 Konstantin Andreyev
            extra_size2 = 0;
375
            break;
376
        }
377
378
        hpos = put_header(pb, &stream_header);
379
        if (enc->codec_type == CODEC_TYPE_AUDIO) {
380
            put_guid(pb, &audio_stream);
381 982e53fe Calcium
            if ((er_spr != NULL) && (er_spr_len != 0)) {
382
                put_guid(pb, &audio_conceal_spread);
383
            } else {
384
                put_guid(pb, &video_conceal_none);
385
            }
386 542993b0 Konstantin Andreyev
        } else {
387
            put_guid(pb, &video_stream);
388
            put_guid(pb, &video_conceal_none);
389
        }
390
        put_le64(pb, 0); /* ??? */
391
        es_pos = url_ftell(pb);
392
        put_le32(pb, extra_size); /* wav header len */
393
        put_le32(pb, extra_size2); /* additional data len */
394
        put_le16(pb, n + 1); /* stream number */
395
        put_le32(pb, 0); /* ??? */
396
397
        if (enc->codec_type == CODEC_TYPE_AUDIO) {
398
            /* WAVEFORMATEX header */
399
            int wavsize = put_wav_header(pb, enc);
400 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)) {
401
                wavsize += 2;
402
                put_le16(pb, 0);
403
            }
404 542993b0 Konstantin Andreyev
405
            if (wavsize < 0)
406
                return -1;
407
            if (wavsize != extra_size) {
408
                cur_pos = url_ftell(pb);
409
                url_fseek(pb, es_pos, SEEK_SET);
410
                put_le32(pb, wavsize); /* wav header len */
411
                url_fseek(pb, cur_pos, SEEK_SET);
412
            }
413 982e53fe Calcium
            /* ERROR Correction */
414
            if ((er_spr != NULL) && (er_spr_len != 0))
415
                put_buffer(pb, er_spr, er_spr_len);
416 542993b0 Konstantin Andreyev
        } else {
417
            put_le32(pb, enc->width);
418
            put_le32(pb, enc->height);
419
            put_byte(pb, 2); /* ??? */
420 982e53fe Calcium
            put_le16(pb, 40 + enc->extradata_size); /* size */
421 542993b0 Konstantin Andreyev
422
            /* BITMAPINFOHEADER header */
423
            put_bmp_header(pb, enc, codec_bmp_tags, 1);
424
        }
425
        end_header(pb, hpos);
426
    }
427
428
    /* media comments */
429
430
    hpos = put_header(pb, &codec_comment_header);
431
    put_guid(pb, &codec_comment1_header);
432
    put_le32(pb, s->nb_streams);
433
    for(n=0;n<s->nb_streams;n++) {
434
        AVCodec *p;
435
436 01f4895c Michael Niedermayer
        enc = s->streams[n]->codec;
437 542993b0 Konstantin Andreyev
        p = avcodec_find_encoder(enc->codec_id);
438
439
        put_le16(pb, asf->streams[n].num);
440
        put_str16(pb, p ? p->name : enc->codec_name);
441
        put_le16(pb, 0); /* no parameters */
442 115329f1 Diego Biurrun
443
444 542993b0 Konstantin Andreyev
        /* id */
445
        if (enc->codec_type == CODEC_TYPE_AUDIO) {
446
            put_le16(pb, 2);
447
            put_le16(pb, enc->codec_tag);
448
        } else {
449
            put_le16(pb, 4);
450
            put_le32(pb, enc->codec_tag);
451
        }
452 d65b8230 Michael Niedermayer
        if(!enc->codec_tag)
453
            return -1;
454 542993b0 Konstantin Andreyev
    }
455
    end_header(pb, hpos);
456
457
    /* patch the header size fields */
458
459
    cur_pos = url_ftell(pb);
460
    header_size = cur_pos - header_offset;
461
    if (asf->is_streamed) {
462
        header_size += 8 + 30 + 50;
463
464
        url_fseek(pb, header_offset - 10 - 30, SEEK_SET);
465
        put_le16(pb, header_size);
466
        url_fseek(pb, header_offset - 2 - 30, SEEK_SET);
467
        put_le16(pb, header_size);
468
469
        header_size -= 8 + 30 + 50;
470
    }
471
    header_size += 24 + 6;
472
    url_fseek(pb, header_offset - 14, SEEK_SET);
473
    put_le64(pb, header_size);
474
    url_fseek(pb, cur_pos, SEEK_SET);
475
476
    /* movie chunk, followed by packets of packet_size */
477
    asf->data_offset = cur_pos;
478
    put_guid(pb, &data_header);
479
    put_le64(pb, data_chunk_size);
480
    put_guid(pb, &my_guid);
481
    put_le64(pb, asf->nb_packets); /* nb packets */
482
    put_byte(pb, 1); /* ??? */
483
    put_byte(pb, 1); /* ??? */
484
    return 0;
485
}
486
487
static int asf_write_header(AVFormatContext *s)
488
{
489
    ASFContext *asf = s->priv_data;
490
491
    asf->packet_size = PACKET_SIZE;
492
    asf->nb_packets = 0;
493 115329f1 Diego Biurrun
494 982e53fe Calcium
    asf->last_indexed_pts = 0;
495
    asf->index_ptr = (ASFIndex*)av_malloc( sizeof(ASFIndex) * ASF_INDEX_BLOCK );
496
    asf->nb_index_memory_alloc = ASF_INDEX_BLOCK;
497
    asf->nb_index_count = 0;
498
    asf->maximum_packet = 0;
499 542993b0 Konstantin Andreyev
500
    if (asf_write_header1(s, 0, 50) < 0) {
501
        //av_free(asf);
502
        return -1;
503
    }
504
505
    put_flush_packet(&s->pb);
506
507 615b92fd Konstantin Andreyev
    asf->packet_nb_payloads = 0;
508 542993b0 Konstantin Andreyev
    asf->packet_timestamp_start = -1;
509
    asf->packet_timestamp_end = -1;
510
    init_put_byte(&asf->pb, asf->packet_buf, asf->packet_size, 1,
511
                  NULL, NULL, NULL, NULL);
512
513
    return 0;
514
}
515
516
static int asf_write_stream_header(AVFormatContext *s)
517
{
518
    ASFContext *asf = s->priv_data;
519
520
    asf->is_streamed = 1;
521
522
    return asf_write_header(s);
523
}
524
525 615b92fd Konstantin Andreyev
static int put_payload_parsing_info(
526
                                AVFormatContext *s,
527 115329f1 Diego Biurrun
                                unsigned int    sendtime,
528 615b92fd Konstantin Andreyev
                                unsigned int    duration,
529 115329f1 Diego Biurrun
                                int             nb_payloads,
530 615b92fd Konstantin Andreyev
                                int             padsize
531
            )
532 542993b0 Konstantin Andreyev
{
533
    ASFContext *asf = s->priv_data;
534
    ByteIOContext *pb = &s->pb;
535 615b92fd Konstantin Andreyev
    int ppi_size, i;
536 ff5b8d83 Michael Niedermayer
    int64_t start= url_ftell(pb);
537 615b92fd Konstantin Andreyev
538
    int iLengthTypeFlags = ASF_PPI_LENGTH_TYPE_FLAGS;
539 115329f1 Diego Biurrun
540 2d241e66 Michael Niedermayer
    padsize -= PACKET_HEADER_MIN_SIZE;
541
    if(asf->multi_payloads_present)
542
        padsize--;
543
    assert(padsize>=0);
544
545 615b92fd Konstantin Andreyev
    put_byte(pb, ASF_PACKET_ERROR_CORRECTION_FLAGS);
546
    for (i = 0; i < ASF_PACKET_ERROR_CORRECTION_DATA_SIZE; i++){
547
        put_byte(pb, 0x0);
548 542993b0 Konstantin Andreyev
    }
549
550 615b92fd Konstantin Andreyev
    if (asf->multi_payloads_present)
551
        iLengthTypeFlags |= ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT;
552 542993b0 Konstantin Andreyev
553
    if (padsize > 0) {
554
        if (padsize < 256)
555 615b92fd Konstantin Andreyev
            iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE;
556 542993b0 Konstantin Andreyev
        else
557 615b92fd Konstantin Andreyev
            iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD;
558 542993b0 Konstantin Andreyev
    }
559 615b92fd Konstantin Andreyev
    put_byte(pb, iLengthTypeFlags);
560
561
    put_byte(pb, ASF_PPI_PROPERTY_FLAGS);
562
563
    if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD)
564 542993b0 Konstantin Andreyev
        put_le16(pb, padsize - 2);
565 615b92fd Konstantin Andreyev
    if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE)
566 542993b0 Konstantin Andreyev
        put_byte(pb, padsize - 1);
567 615b92fd Konstantin Andreyev
568
    put_le32(pb, sendtime);
569 542993b0 Konstantin Andreyev
    put_le16(pb, duration);
570 615b92fd Konstantin Andreyev
    if (asf->multi_payloads_present)
571
        put_byte(pb, nb_payloads | ASF_PAYLOAD_FLAGS);
572
573 ff5b8d83 Michael Niedermayer
    ppi_size = url_ftell(pb) - start;
574 542993b0 Konstantin Andreyev
575 615b92fd Konstantin Andreyev
    return ppi_size;
576 542993b0 Konstantin Andreyev
}
577
578
static void flush_packet(AVFormatContext *s)
579
{
580
    ASFContext *asf = s->priv_data;
581 615b92fd Konstantin Andreyev
    int packet_hdr_size, packet_filled_size;
582 542993b0 Konstantin Andreyev
583 615b92fd Konstantin Andreyev
    if (asf->is_streamed) {
584
        put_chunk(s, 0x4424, asf->packet_size, 0);
585
    }
586
587
    packet_hdr_size = put_payload_parsing_info(
588
                            s,
589
                            asf->packet_timestamp_start,
590
                            asf->packet_timestamp_end - asf->packet_timestamp_start,
591
                            asf->packet_nb_payloads,
592
                            asf->packet_size_left
593
                        );
594 542993b0 Konstantin Andreyev
595 2d241e66 Michael Niedermayer
    packet_filled_size = PACKET_SIZE - asf->packet_size_left;
596
    assert(packet_hdr_size <= asf->packet_size_left);
597 615b92fd Konstantin Andreyev
    memset(asf->packet_buf + packet_filled_size, 0, asf->packet_size_left);
598 542993b0 Konstantin Andreyev
599 615b92fd Konstantin Andreyev
    put_buffer(&s->pb, asf->packet_buf, asf->packet_size - packet_hdr_size);
600 542993b0 Konstantin Andreyev
601
    put_flush_packet(&s->pb);
602
    asf->nb_packets++;
603 615b92fd Konstantin Andreyev
    asf->packet_nb_payloads = 0;
604 542993b0 Konstantin Andreyev
    asf->packet_timestamp_start = -1;
605
    asf->packet_timestamp_end = -1;
606
    init_put_byte(&asf->pb, asf->packet_buf, asf->packet_size, 1,
607
                  NULL, NULL, NULL, NULL);
608
}
609
610 615b92fd Konstantin Andreyev
static void put_payload_header(
611
                                AVFormatContext *s,
612
                                ASFStream       *stream,
613
                                int             presentation_time,
614
                                int             m_obj_size,
615
                                int             m_obj_offset,
616 3c895fc0 Michael Niedermayer
                                int             payload_len,
617
                                int             flags
618 615b92fd Konstantin Andreyev
            )
619 542993b0 Konstantin Andreyev
{
620
    ASFContext *asf = s->priv_data;
621
    ByteIOContext *pb = &asf->pb;
622
    int val;
623 115329f1 Diego Biurrun
624 542993b0 Konstantin Andreyev
    val = stream->num;
625 3c895fc0 Michael Niedermayer
    if (flags & PKT_FLAG_KEY)
626 615b92fd Konstantin Andreyev
        val |= ASF_PL_FLAG_KEY_FRAME;
627 542993b0 Konstantin Andreyev
    put_byte(pb, val);
628 115329f1 Diego Biurrun
629 615b92fd Konstantin Andreyev
    put_byte(pb, stream->seq);  //Media object number
630
    put_le32(pb, m_obj_offset); //Offset Into Media Object
631 115329f1 Diego Biurrun
632 615b92fd Konstantin Andreyev
    // Replicated Data shall be at least 8 bytes long.
633 115329f1 Diego Biurrun
    // The first 4 bytes of data shall contain the
634 615b92fd Konstantin Andreyev
    // Size of the Media Object that the payload belongs to.
635 115329f1 Diego Biurrun
    // The next 4 bytes of data shall contain the
636 615b92fd Konstantin Andreyev
    // Presentation Time for the media object that the payload belongs to.
637
    put_byte(pb, ASF_PAYLOAD_REPLICATED_DATA_LENGTH);
638
639
    put_le32(pb, m_obj_size);       //Replicated Data - Media Object Size
640
    put_le32(pb, presentation_time);//Replicated Data - Presentation Time
641 115329f1 Diego Biurrun
642 615b92fd Konstantin Andreyev
    if (asf->multi_payloads_present){
643
        put_le16(pb, payload_len);   //payload length
644
    }
645 542993b0 Konstantin Andreyev
}
646
647 615b92fd Konstantin Andreyev
static void put_frame(
648
                    AVFormatContext *s,
649
                    ASFStream       *stream,
650 bb270c08 Diego Biurrun
                    int             timestamp,
651 615b92fd Konstantin Andreyev
                    const uint8_t   *buf,
652 bb270c08 Diego Biurrun
                    int             m_obj_size,
653 3c895fc0 Michael Niedermayer
                    int             flags
654 bb270c08 Diego Biurrun
                )
655 542993b0 Konstantin Andreyev
{
656
    ASFContext *asf = s->priv_data;
657 615b92fd Konstantin Andreyev
    int m_obj_offset, payload_len, frag_len1;
658
659
    m_obj_offset = 0;
660
    while (m_obj_offset < m_obj_size) {
661
        payload_len = m_obj_size - m_obj_offset;
662
        if (asf->packet_timestamp_start == -1) {
663
            asf->multi_payloads_present = (payload_len < MULTI_PAYLOAD_CONSTANT);
664 115329f1 Diego Biurrun
665 2d241e66 Michael Niedermayer
            asf->packet_size_left = PACKET_SIZE;
666 615b92fd Konstantin Andreyev
            if (asf->multi_payloads_present){
667
                frag_len1 = MULTI_PAYLOAD_CONSTANT - 1;
668
            }
669
            else {
670
                frag_len1 = SINGLE_PAYLOAD_DATA_LENGTH;
671
            }
672 190972a0 Michael Niedermayer
            asf->packet_timestamp_start = timestamp;
673 615b92fd Konstantin Andreyev
        }
674
        else {
675
            // multi payloads
676 2d241e66 Michael Niedermayer
            frag_len1 = asf->packet_size_left - PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS - PACKET_HEADER_MIN_SIZE - 1;
677 542993b0 Konstantin Andreyev
678 190972a0 Michael Niedermayer
            asf->packet_timestamp_start = timestamp;
679 615b92fd Konstantin Andreyev
        }
680 542993b0 Konstantin Andreyev
        if (frag_len1 > 0) {
681 615b92fd Konstantin Andreyev
            if (payload_len > frag_len1)
682
                payload_len = frag_len1;
683
            else if (payload_len == (frag_len1 - 1))
684
                payload_len = frag_len1 - 2;  //additional byte need to put padding length
685 115329f1 Diego Biurrun
686 3c895fc0 Michael Niedermayer
            put_payload_header(s, stream, timestamp+preroll_time, m_obj_size, m_obj_offset, payload_len, flags);
687 615b92fd Konstantin Andreyev
            put_buffer(&asf->pb, buf, payload_len);
688
689
            if (asf->multi_payloads_present)
690
                asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS);
691
            else
692
                asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD);
693 542993b0 Konstantin Andreyev
            asf->packet_timestamp_end = timestamp;
694 115329f1 Diego Biurrun
695 615b92fd Konstantin Andreyev
            asf->packet_nb_payloads++;
696 542993b0 Konstantin Andreyev
        } else {
697 615b92fd Konstantin Andreyev
            payload_len = 0;
698 542993b0 Konstantin Andreyev
        }
699 615b92fd Konstantin Andreyev
        m_obj_offset += payload_len;
700
        buf += payload_len;
701
702
        if (!asf->multi_payloads_present)
703
            flush_packet(s);
704 2d241e66 Michael Niedermayer
        else if (asf->packet_size_left <= (PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS + PACKET_HEADER_MIN_SIZE + 1))
705 542993b0 Konstantin Andreyev
            flush_packet(s);
706
    }
707
    stream->seq++;
708
}
709
710 e928649b Michael Niedermayer
static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
711 542993b0 Konstantin Andreyev
{
712
    ASFContext *asf = s->priv_data;
713
    ASFStream *stream;
714
    int64_t duration;
715
    AVCodecContext *codec;
716 115329f1 Diego Biurrun
    int64_t packet_st,pts;
717 982e53fe Calcium
    int start_sec,i;
718 0d9f8633 Michael Niedermayer
    int flags= pkt->flags;
719 542993b0 Konstantin Andreyev
720 01f4895c Michael Niedermayer
    codec = s->streams[pkt->stream_index]->codec;
721 e928649b Michael Niedermayer
    stream = &asf->streams[pkt->stream_index];
722 542993b0 Konstantin Andreyev
723 0d9f8633 Michael Niedermayer
    if(codec->codec_type == CODEC_TYPE_AUDIO)
724
        flags &= ~PKT_FLAG_KEY;
725
726 982e53fe Calcium
    //XXX /FIXME use duration from AVPacket (quick hack by)
727
    pts = (pkt->pts != AV_NOPTS_VALUE) ? pkt->pts : pkt->dts;
728 9bc93229 Michael Niedermayer
    assert(pts != AV_NOPTS_VALUE);
729
    duration = pts * 10000;
730 d65b8230 Michael Niedermayer
    asf->duration= FFMAX(asf->duration, duration);
731 542993b0 Konstantin Andreyev
732 982e53fe Calcium
    packet_st = asf->nb_packets;
733 0d9f8633 Michael Niedermayer
    put_frame(s, stream, pkt->dts, pkt->data, pkt->size, flags);
734 982e53fe Calcium
735
    /* check index */
736 0d9f8633 Michael Niedermayer
    if ((!asf->is_streamed) && (flags & PKT_FLAG_KEY)) {
737 8da9266c Måns Rullgård
        start_sec = (int)(duration / INT64_C(10000000));
738
        if (start_sec != (int)(asf->last_indexed_pts / INT64_C(10000000))) {
739 982e53fe Calcium
            for(i=asf->nb_index_count;i<start_sec;i++) {
740
                if (i>=asf->nb_index_memory_alloc) {
741
                    asf->nb_index_memory_alloc += ASF_INDEX_BLOCK;
742
                    asf->index_ptr = (ASFIndex*)av_realloc( asf->index_ptr, sizeof(ASFIndex) * asf->nb_index_memory_alloc );
743
                }
744
                // store
745
                asf->index_ptr[i].packet_number = (uint32_t)packet_st;
746
                asf->index_ptr[i].packet_count  = (uint16_t)(asf->nb_packets-packet_st);
747 d65b8230 Michael Niedermayer
                asf->maximum_packet = FFMAX(asf->maximum_packet, (uint16_t)(asf->nb_packets-packet_st));
748 982e53fe Calcium
            }
749
            asf->nb_index_count = start_sec;
750
            asf->last_indexed_pts = duration;
751
        }
752
    }
753
    return 0;
754
}
755
756
//
757
static int asf_write_index(AVFormatContext *s, ASFIndex *index, uint16_t max, uint32_t count)
758
{
759
    ByteIOContext *pb = &s->pb;
760
    int i;
761
762
    put_guid(pb, &simple_index_header);
763
    put_le64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2)*count);
764
    put_guid(pb, &my_guid);
765
    put_le64(pb, ASF_INDEXED_INTERVAL);
766
    put_le32(pb, max);
767
    put_le32(pb, count);
768
    for(i=0; i<count; i++) {
769
        put_le32(pb, index[i].packet_number);
770
        put_le16(pb, index[i].packet_count);
771
    }
772
773 542993b0 Konstantin Andreyev
    return 0;
774
}
775
776
static int asf_write_trailer(AVFormatContext *s)
777
{
778
    ASFContext *asf = s->priv_data;
779 982e53fe Calcium
    int64_t file_size,data_size;
780 542993b0 Konstantin Andreyev
781
    /* flush the current packet */
782
    if (asf->pb.buf_ptr > asf->pb.buffer)
783
        flush_packet(s);
784
785 982e53fe Calcium
    /* write index */
786
    data_size = url_ftell(&s->pb);
787
    if ((!asf->is_streamed) && (asf->nb_index_count != 0)) {
788
        asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->nb_index_count);
789
    }
790
    put_flush_packet(&s->pb);
791
792 542993b0 Konstantin Andreyev
    if (asf->is_streamed) {
793
        put_chunk(s, 0x4524, 0, 0); /* end of stream */
794
    } else {
795
        /* rewrite an updated header */
796
        file_size = url_ftell(&s->pb);
797
        url_fseek(&s->pb, 0, SEEK_SET);
798 982e53fe Calcium
        asf_write_header1(s, file_size, data_size - asf->data_offset);
799 542993b0 Konstantin Andreyev
    }
800
801
    put_flush_packet(&s->pb);
802 982e53fe Calcium
    av_free(asf->index_ptr);
803 542993b0 Konstantin Andreyev
    return 0;
804
}
805
806 ff70e601 Måns Rullgård
#ifdef CONFIG_ASF_MUXER
807 d2a067d1 Måns Rullgård
AVOutputFormat asf_muxer = {
808 542993b0 Konstantin Andreyev
    "asf",
809
    "asf format",
810
    "video/x-ms-asf",
811 87094371 Michael Niedermayer
    "asf,wmv,wma",
812 542993b0 Konstantin Andreyev
    sizeof(ASFContext),
813 6ebe07fb Diego Biurrun
#ifdef CONFIG_LIBMP3LAME
814 542993b0 Konstantin Andreyev
    CODEC_ID_MP3,
815
#else
816
    CODEC_ID_MP2,
817
#endif
818
    CODEC_ID_MSMPEG4V3,
819
    asf_write_header,
820
    asf_write_packet,
821
    asf_write_trailer,
822 982e53fe Calcium
    .flags = AVFMT_GLOBALHEADER,
823 6c77805f Michael Niedermayer
    .codec_tag= (const AVCodecTag*[]){codec_asf_bmp_tags, codec_bmp_tags, codec_wav_tags, 0},
824 542993b0 Konstantin Andreyev
};
825 ff70e601 Måns Rullgård
#endif
826 542993b0 Konstantin Andreyev
827 ff70e601 Måns Rullgård
#ifdef CONFIG_ASF_STREAM_MUXER
828 d2a067d1 Måns Rullgård
AVOutputFormat asf_stream_muxer = {
829 542993b0 Konstantin Andreyev
    "asf_stream",
830
    "asf format",
831
    "video/x-ms-asf",
832 87094371 Michael Niedermayer
    "asf,wmv,wma",
833 542993b0 Konstantin Andreyev
    sizeof(ASFContext),
834 6ebe07fb Diego Biurrun
#ifdef CONFIG_LIBMP3LAME
835 542993b0 Konstantin Andreyev
    CODEC_ID_MP3,
836
#else
837
    CODEC_ID_MP2,
838
#endif
839
    CODEC_ID_MSMPEG4V3,
840
    asf_write_stream_header,
841
    asf_write_packet,
842
    asf_write_trailer,
843 982e53fe Calcium
    .flags = AVFMT_GLOBALHEADER,
844 6c77805f Michael Niedermayer
    .codec_tag= (const AVCodecTag*[]){codec_asf_bmp_tags, codec_bmp_tags, codec_wav_tags, 0},
845 542993b0 Konstantin Andreyev
};
846 ff70e601 Måns Rullgård
#endif //CONFIG_ASF_STREAM_MUXER