git.sesse.net Git - vlc/blob - modules/codec/ffmpeg/ffmpeg.h

   1 /*****************************************************************************
   2  * ffmpeg_vdec.h: video decoder using ffmpeg library
   3  *****************************************************************************
   4  * Copyright (C) 2001 VideoLAN
   5  * $Id: ffmpeg.h,v 1.6 2002/10/24 10:33:09 fenrir Exp $
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /* Pour un flux video */
  25 typedef struct bitmapinfoheader_s
  26 {
  27     u32 i_size; /* size of header */
  28     u32 i_width;
  29     u32 i_height;
  30     u16 i_planes;
  31     u16 i_bitcount;
  32     u32 i_compression;
  33     u32 i_sizeimage;
  34     u32 i_xpelspermeter;
  35     u32 i_ypelspermeter;
  36     u32 i_clrused;
  37     u32 i_clrimportant;
  38
  39     int i_data;
  40     u8  *p_data;
  41 } bitmapinfoheader_t;
  42
  43
  44 #if 0
  45 typedef struct statistic_s
  46 {
  47     mtime_t i_frame_time[3];  /* total time to decode frame */
  48     int     i_frame_count[3]; /* number of frame to calculate frame_time */
  49
  50     int     i_frame_late[3];  /* number of frame consecutively late */
  51     int     i_frame_skip[3];  /* number of frame skip */
  52
  53 } statistic_t;
  54 #endif
  55
  56 typedef struct videodec_thread_s
  57 {
  58     decoder_fifo_t      *p_fifo;
  59
  60     bitmapinfoheader_t  format;
  61
  62     AVCodecContext      *p_context;
  63     AVCodec             *p_codec;
  64     vout_thread_t       *p_vout;
  65
  66     /* for post processing */
  67     u32                 i_pp_mode; /* valid only with I420 and YV12 */
  68     postprocessing_t    *p_pp;
  69
  70     char *psz_namecodec;
  71
  72     /* for frame skipping algo */
  73 //    statistic_s statistic;
  74
  75     int b_hurry_up;
  76     int i_frame_error;
  77     int i_frame_skip;
  78     int i_frame_late;  /* how may frame decoded are in late */
  79
  80      /* private */
  81     mtime_t i_pts;
  82
  83     u8      *p_buffer;      /* buffer for gather pes */
  84     int     i_buffer;       /* size of allocated p_framedata */
  85
  86 } videodec_thread_t;
  87
  88 /* MPEG4 video */
  89 #define FOURCC_DIVX         VLC_FOURCC('D','I','V','X')
  90 #define FOURCC_divx         VLC_FOURCC('d','i','v','x')
  91 #define FOURCC_DIV1         VLC_FOURCC('D','I','V','1')
  92 #define FOURCC_div1         VLC_FOURCC('d','i','v','1')
  93 #define FOURCC_MP4S         VLC_FOURCC('M','P','4','S')
  94 #define FOURCC_mp4s         VLC_FOURCC('m','p','4','s')
  95 #define FOURCC_M4S2         VLC_FOURCC('M','4','S','2')
  96 #define FOURCC_m4s2         VLC_FOURCC('m','4','s','2')
  97 #define FOURCC_xvid         VLC_FOURCC('x','v','i','d')
  98 #define FOURCC_XVID         VLC_FOURCC('X','V','I','D')
  99 #define FOURCC_XviD         VLC_FOURCC('X','v','i','D')
 100 #define FOURCC_DX50         VLC_FOURCC('D','X','5','0')
 101 #define FOURCC_mp4v         VLC_FOURCC('m','p','4','v')
 102 #define FOURCC_4            VLC_FOURCC( 4,  0,  0,  0 )
 103
 104 /* MSMPEG4 v2 */
 105 #define FOURCC_MPG4         VLC_FOURCC('M','P','G','4')
 106 #define FOURCC_mpg4         VLC_FOURCC('m','p','g','4')
 107 #define FOURCC_DIV2         VLC_FOURCC('D','I','V','2')
 108 #define FOURCC_div2         VLC_FOURCC('d','i','v','2')
 109 #define FOURCC_MP42         VLC_FOURCC('M','P','4','2')
 110 #define FOURCC_mp42         VLC_FOURCC('m','p','4','2')
 111
 112 /* MSMPEG4 v3 / M$ mpeg4 v3 */
 113 #define FOURCC_MPG3         VLC_FOURCC('M','P','G','3')
 114 #define FOURCC_mpg3         VLC_FOURCC('m','p','g','3')
 115 #define FOURCC_div3         VLC_FOURCC('d','i','v','3')
 116 #define FOURCC_MP43         VLC_FOURCC('M','P','4','3')
 117 #define FOURCC_mp43         VLC_FOURCC('m','p','4','3')
 118
 119 /* DivX 3.20 */
 120 #define FOURCC_DIV3         VLC_FOURCC('D','I','V','3')
 121 #define FOURCC_DIV4         VLC_FOURCC('D','I','V','4')
 122 #define FOURCC_div4         VLC_FOURCC('d','i','v','4')
 123 #define FOURCC_DIV5         VLC_FOURCC('D','I','V','5')
 124 #define FOURCC_div5         VLC_FOURCC('d','i','v','5')
 125 #define FOURCC_DIV6         VLC_FOURCC('D','I','V','6')
 126 #define FOURCC_div6         VLC_FOURCC('d','i','v','6')
 127
 128 /* AngelPotion stuff */
 129 #define FOURCC_AP41         VLC_FOURCC('A','P','4','1')
 130
 131 /* ?? */
 132 #define FOURCC_3IV1         VLC_FOURCC('3','I','V','1')
 133 #define FOURCC_3IV2         VLC_FOURCC('3','I','V','2')
 134
 135 /* H263 and H263i */
 136 #define FOURCC_H263         VLC_FOURCC('H','2','6','3')
 137 #define FOURCC_h263         VLC_FOURCC('h','2','6','3')
 138 #define FOURCC_U263         VLC_FOURCC('U','2','6','3')
 139 #define FOURCC_I263         VLC_FOURCC('I','2','6','3')
 140 #define FOURCC_i263         VLC_FOURCC('i','2','6','3')
 141
 142 /* Sorenson v1 */
 143 #define FOURCC_SVQ1 VLC_FOURCC( 'S', 'V', 'Q', '1' )
 144
 145 /* wmv */
 146 #define FOURCC_WMV1         VLC_FOURCC('W','M','V','1')
 147 #define FOURCC_WMV2         VLC_FOURCC('W','M','V','2')
 148
 149 static int ffmpeg_GetFfmpegCodec( vlc_fourcc_t i_fourcc,
 150                                   int *pi_ffmpeg_codec,
 151                                   char **ppsz_name )
 152 {
 153     int i_codec = 0;
 154     char *psz_name = NULL;
 155
 156     switch( i_fourcc )
 157     {
 158 #if LIBAVCODEC_BUILD >= 4608
 159         case FOURCC_DIV1:
 160         case FOURCC_div1:
 161         case FOURCC_MPG4:
 162         case FOURCC_mpg4:
 163             i_codec = CODEC_ID_MSMPEG4V1;
 164             psz_name = "MS MPEG-4 v1";
 165             break;
 166
 167         case FOURCC_DIV2:
 168         case FOURCC_div2:
 169         case FOURCC_MP42:
 170         case FOURCC_mp42:
 171             i_codec = CODEC_ID_MSMPEG4V2;
 172             psz_name = "MS MPEG-4 v2";
 173             break;
 174 #endif
 175
 176         case FOURCC_MPG3:
 177         case FOURCC_mpg3:
 178         case FOURCC_div3:
 179         case FOURCC_MP43:
 180         case FOURCC_mp43:
 181         case FOURCC_DIV3:
 182         case FOURCC_DIV4:
 183         case FOURCC_div4:
 184         case FOURCC_DIV5:
 185         case FOURCC_div5:
 186         case FOURCC_DIV6:
 187         case FOURCC_div6:
 188         case FOURCC_AP41:
 189         case FOURCC_3IV1:
 190 #if LIBAVCODEC_BUILD >= 4608
 191             i_codec = CODEC_ID_MSMPEG4V3;
 192 #else
 193             i_codec = CODEC_ID_MSMPEG4;
 194 #endif
 195             psz_name = "MS MPEG-4 v3";
 196             break;
 197
 198 #if LIBAVCODEC_BUILD >= 4615
 199         case FOURCC_SVQ1:
 200             i_codec = CODEC_ID_SVQ1;
 201             psz_name = "SVQ-1 (Sorenson Video v1)";
 202             break;
 203 #endif
 204
 205         case FOURCC_DIVX:
 206         case FOURCC_divx:
 207         case FOURCC_MP4S:
 208         case FOURCC_mp4s:
 209         case FOURCC_M4S2:
 210         case FOURCC_m4s2:
 211         case FOURCC_xvid:
 212         case FOURCC_XVID:
 213         case FOURCC_XviD:
 214         case FOURCC_DX50:
 215         case FOURCC_mp4v:
 216         case FOURCC_4:
 217         case FOURCC_3IV2:
 218
 219             i_codec = CODEC_ID_MPEG4;
 220             psz_name = "MPEG-4";
 221             break;
 222 /* FIXME FOURCC_H263P exist but what fourcc ? */
 223         case FOURCC_H263:
 224         case FOURCC_h263:
 225         case FOURCC_U263:
 226             i_codec = CODEC_ID_H263;
 227             psz_name = "H263";
 228             break;
 229
 230         case FOURCC_I263:
 231         case FOURCC_i263:
 232             i_codec = CODEC_ID_H263I;
 233             psz_name = "I263.I";
 234             break;
 235         case FOURCC_WMV1:
 236             i_codec = CODEC_ID_WMV1;
 237             psz_name ="Windows Media Video 1";
 238             break;
 239         case FOURCC_WMV2:
 240             i_codec = CODEC_ID_WMV2;
 241             psz_name ="Windows Media Video 2";
 242             break;
 243
 244     }
 245
 246     if( i_codec )
 247     {
 248         if( pi_ffmpeg_codec ) *pi_ffmpeg_codec = i_codec;
 249         if( ppsz_name ) *ppsz_name = psz_name;
 250         return VLC_TRUE;
 251     }
 252
 253     return VLC_FALSE;
 254 }
 255
 256 /* FIXME FIXME some of them are wrong */
 257 static int i_ffmpeg_PixFmtToChroma[] =
 258 {
 259     /* PIX_FMT_ANY = -1, PIX_FMT_YUV420P,
 260        PIX_FMT_YUV422,   PIX_FMT_RGB24,
 261        PIX_FMT_BGR24,    PIX_FMT_YUV422P,
 262        PIX_FMT_YUV444P,  PIX_FMT_YUV410P
 263      */
 264     0,                           VLC_FOURCC('I','4','2','0'),
 265     VLC_FOURCC('I','4','2','0'), VLC_FOURCC('R','V','2','4'),
 266     0,                           VLC_FOURCC('Y','4','2','2'),
 267     VLC_FOURCC('I','4','4','4'), 0
 268 };
 269
 270 static inline u32 ffmpeg_PixFmtToChroma( int i_ffmpegchroma )
 271 {
 272     if( ++i_ffmpegchroma > 7 )
 273     {
 274         return( 0 );
 275     }
 276     else
 277     {
 278         return( i_ffmpeg_PixFmtToChroma[i_ffmpegchroma] );
 279     }
 280 }
 281
 282 static inline int ffmpeg_FfAspect( int i_width, int i_height, int i_ffaspect )
 283 {
 284     switch( i_ffaspect )
 285     {
 286         case( FF_ASPECT_4_3_625 ):
 287         case( FF_ASPECT_4_3_525 ):
 288             return( VOUT_ASPECT_FACTOR * 4 / 3);
 289         case( FF_ASPECT_16_9_625 ):
 290         case( FF_ASPECT_16_9_525 ):
 291             return( VOUT_ASPECT_FACTOR * 16 / 9 );
 292         case( FF_ASPECT_SQUARE ):
 293         default:
 294             return( VOUT_ASPECT_FACTOR * i_width / i_height );
 295     }
 296 }
 297