libavformat/swf.h

   1 /*
   2  * Flash Compatible Streaming Format common header.
   3  * Copyright (c) 2000 Fabrice Bellard.
   4  * Copyright (c) 2003 Tinic Uro.
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #ifndef FFMPEG_SWF_H
  24 #define FFMPEG_SWF_H
  25
  26 #include "avformat.h"
  27 #include "riff.h"    /* for CodecTag */
  28
  29 /* should have a generic way to indicate probable size */
  30 #define DUMMY_FILE_SIZE   (100 * 1024 * 1024)
  31 #define DUMMY_DURATION    600 /* in seconds */
  32
  33 #define TAG_END           0
  34 #define TAG_SHOWFRAME     1
  35 #define TAG_DEFINESHAPE   2
  36 #define TAG_FREECHARACTER 3
  37 #define TAG_PLACEOBJECT   4
  38 #define TAG_REMOVEOBJECT  5
  39 #define TAG_STREAMHEAD    18
  40 #define TAG_STREAMBLOCK   19
  41 #define TAG_JPEG2         21
  42 #define TAG_PLACEOBJECT2  26
  43 #define TAG_STREAMHEAD2   45
  44 #define TAG_VIDEOSTREAM   60
  45 #define TAG_VIDEOFRAME    61
  46 #define TAG_FILEATTRIBUTES 69
  47
  48 #define TAG_LONG         0x100
  49
  50 /* flags for shape definition */
  51 #define FLAG_MOVETO      0x01
  52 #define FLAG_SETFILL0    0x02
  53 #define FLAG_SETFILL1    0x04
  54
  55 #define AUDIO_FIFO_SIZE 65536
  56
  57 /* character id used */
  58 #define BITMAP_ID 0
  59 #define VIDEO_ID 0
  60 #define SHAPE_ID  1
  61
  62 #undef NDEBUG
  63 #include <assert.h>
  64
  65 typedef struct {
  66     int audio_stream_index;
  67     offset_t duration_pos;
  68     offset_t tag_pos;
  69
  70     int samples_per_frame;
  71     int sound_samples;
  72     int swf_frame_number;
  73     int video_frame_number;
  74     int frame_rate;
  75     int tag;
  76
  77     uint8_t audio_fifo[AUDIO_FIFO_SIZE];
  78     int audio_in_pos;
  79
  80     int video_type;
  81     int audio_type;
  82 } SWFContext;
  83
  84 static const AVCodecTag swf_codec_tags[] = {
  85     {CODEC_ID_FLV1, 0x02},
  86     {CODEC_ID_VP6F, 0x04},
  87     {0, 0},
  88 };
  89
  90 static const AVCodecTag swf_audio_codec_tags[] = {
  91     {CODEC_ID_PCM_S16LE,  0x00},
  92     {CODEC_ID_ADPCM_SWF,  0x01},
  93     {CODEC_ID_MP3,        0x02},
  94     {CODEC_ID_PCM_S16LE,  0x03},
  95   //{CODEC_ID_NELLYMOSER, 0x06},
  96     {0, 0},
  97 };
  98
  99 #endif /* FFMPEG_SWF_H */