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 1.4 2002/10/14 21:59:44 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     int     i_framesize;
  83     u8      *p_framedata;
  84
  85     u8      *p_buffer;     /* buffer for gather pes */
  86     int     i_buffer_size; /* size of allocated p_framedata */
  87
  88 } videodec_thread_t;
  89
  90 /* MPEG4 video */
  91 #define FOURCC_DIVX         VLC_FOURCC('D','I','V','X')
  92 #define FOURCC_divx         VLC_FOURCC('d','i','v','x')
  93 #define FOURCC_DIV1         VLC_FOURCC('D','I','V','1')
  94 #define FOURCC_div1         VLC_FOURCC('d','i','v','1')
  95 #define FOURCC_MP4S         VLC_FOURCC('M','P','4','S')
  96 #define FOURCC_mp4s         VLC_FOURCC('m','p','4','s')
  97 #define FOURCC_M4S2         VLC_FOURCC('M','4','S','2')
  98 #define FOURCC_m4s2         VLC_FOURCC('m','4','s','2')
  99 #define FOURCC_xvid         VLC_FOURCC('x','v','i','d')
 100 #define FOURCC_XVID         VLC_FOURCC('X','V','I','D')
 101 #define FOURCC_XviD         VLC_FOURCC('X','v','i','D')
 102 #define FOURCC_DX50         VLC_FOURCC('D','X','5','0')
 103 #define FOURCC_mp4v         VLC_FOURCC('m','p','4','v')
 104 #define FOURCC_4            VLC_FOURCC( 4,  0,  0,  0 )
 105
 106 /* MSMPEG4 v2 */
 107 #define FOURCC_MPG4         VLC_FOURCC('M','P','G','4')
 108 #define FOURCC_mpg4         VLC_FOURCC('m','p','g','4')
 109 #define FOURCC_DIV2         VLC_FOURCC('D','I','V','2')
 110 #define FOURCC_div2         VLC_FOURCC('d','i','v','2')
 111 #define FOURCC_MP42         VLC_FOURCC('M','P','4','2')
 112 #define FOURCC_mp42         VLC_FOURCC('m','p','4','2')
 113
 114 /* MSMPEG4 v3 / M$ mpeg4 v3 */
 115 #define FOURCC_MPG3         VLC_FOURCC('M','P','G','3')
 116 #define FOURCC_mpg3         VLC_FOURCC('m','p','g','3')
 117 #define FOURCC_div3         VLC_FOURCC('d','i','v','3')
 118 #define FOURCC_MP43         VLC_FOURCC('M','P','4','3')
 119 #define FOURCC_mp43         VLC_FOURCC('m','p','4','3')
 120
 121 /* DivX 3.20 */
 122 #define FOURCC_DIV3         VLC_FOURCC('D','I','V','3')
 123 #define FOURCC_DIV4         VLC_FOURCC('D','I','V','4')
 124 #define FOURCC_div4         VLC_FOURCC('d','i','v','4')
 125 #define FOURCC_DIV5         VLC_FOURCC('D','I','V','5')
 126 #define FOURCC_div5         VLC_FOURCC('d','i','v','5')
 127 #define FOURCC_DIV6         VLC_FOURCC('D','I','V','6')
 128 #define FOURCC_div6         VLC_FOURCC('d','i','v','6')
 129
 130 /* AngelPotion stuff */
 131 #define FOURCC_AP41         VLC_FOURCC('A','P','4','1')
 132
 133 /* ?? */
 134 #define FOURCC_3IV1         VLC_FOURCC('3','I','V','1')
 135 #define FOURCC_3IV2         VLC_FOURCC('3','I','V','2')
 136
 137 /* H263 and H263i */
 138 #define FOURCC_H263         VLC_FOURCC('H','2','6','3')
 139 #define FOURCC_h263         VLC_FOURCC('h','2','6','3')
 140 #define FOURCC_U263         VLC_FOURCC('U','2','6','3')
 141 #define FOURCC_I263         VLC_FOURCC('I','2','6','3')
 142 #define FOURCC_i263         VLC_FOURCC('i','2','6','3')
 143
 144 /* Sorenson v1 */
 145 #define FOURCC_SVQ1 VLC_FOURCC( 'S', 'V', 'Q', '1' )
 146
 147 static int ffmpeg_GetFfmpegCodec( vlc_fourcc_t i_fourcc,
 148                                   int *pi_ffmpeg_codec,
 149                                   char **ppsz_name )
 150 {
 151     int i_codec = 0;
 152     char *psz_name = NULL;
 153
 154     switch( i_fourcc )
 155     {
 156 #if LIBAVCODEC_BUILD >= 4608
 157         case FOURCC_DIV1:
 158         case FOURCC_div1:
 159         case FOURCC_MPG4:
 160         case FOURCC_mpg4:
 161             i_codec = CODEC_ID_MSMPEG4V1;
 162             psz_name = "MS MPEG-4 v1";
 163             break;
 164
 165         case FOURCC_DIV2:
 166         case FOURCC_div2:
 167         case FOURCC_MP42:
 168         case FOURCC_mp42:
 169             i_codec = CODEC_ID_MSMPEG4V2;
 170             psz_name = "MS MPEG-4 v2";
 171             break;
 172 #endif
 173
 174         case FOURCC_MPG3:
 175         case FOURCC_mpg3:
 176         case FOURCC_div3:
 177         case FOURCC_MP43:
 178         case FOURCC_mp43:
 179         case FOURCC_DIV3:
 180         case FOURCC_DIV4:
 181         case FOURCC_div4:
 182         case FOURCC_DIV5:
 183         case FOURCC_div5:
 184         case FOURCC_DIV6:
 185         case FOURCC_div6:
 186         case FOURCC_AP41:
 187         case FOURCC_3IV1:
 188 #if LIBAVCODEC_BUILD >= 4608
 189             i_codec = CODEC_ID_MSMPEG4V3;
 190 #else
 191             i_codec = CODEC_ID_MSMPEG4;
 192 #endif
 193             psz_name = "MS MPEG-4 v3";
 194             break;
 195
 196 #if LIBAVCODEC_BUILD >= 4615
 197         case FOURCC_SVQ1:
 198             i_codec = CODEC_ID_SVQ1;
 199             psz_name = "SVQ-1 (Sorenson Video v1)";
 200             break;
 201 #endif
 202
 203         case FOURCC_DIVX:
 204         case FOURCC_divx:
 205         case FOURCC_MP4S:
 206         case FOURCC_mp4s:
 207         case FOURCC_M4S2:
 208         case FOURCC_m4s2:
 209         case FOURCC_xvid:
 210         case FOURCC_XVID:
 211         case FOURCC_XviD:
 212         case FOURCC_DX50:
 213         case FOURCC_mp4v:
 214         case FOURCC_4:
 215         case FOURCC_3IV2:
 216
 217             i_codec = CODEC_ID_MPEG4;
 218             psz_name = "MPEG-4";
 219             break;
 220 /* FIXME FOURCC_H263P exist but what fourcc ? */
 221         case FOURCC_H263:
 222         case FOURCC_h263:
 223         case FOURCC_U263:
 224             i_codec = CODEC_ID_H263;
 225             psz_name = "H263";
 226             break;
 227
 228         case FOURCC_I263:
 229         case FOURCC_i263:
 230             i_codec = CODEC_ID_H263I;
 231             psz_name = "I263.I";
 232             break;
 233     }
 234
 235     if( i_codec )
 236     {
 237         if( pi_ffmpeg_codec ) *pi_ffmpeg_codec = i_codec;
 238         if( ppsz_name ) *ppsz_name = psz_name;
 239         return VLC_TRUE;
 240     }
 241
 242     return VLC_FALSE;
 243 }
 244
 245 /* FIXME FIXME some of them are wrong */
 246 static int i_ffmpeg_PixFmtToChroma[] =
 247 {
 248     /* PIX_FMT_ANY = -1, PIX_FMT_YUV420P,
 249        PIX_FMT_YUV422,   PIX_FMT_RGB24,
 250        PIX_FMT_BGR24,    PIX_FMT_YUV422P,
 251        PIX_FMT_YUV444P,  PIX_FMT_YUV410P
 252      */
 253     0,                           VLC_FOURCC('I','4','2','0'),
 254     VLC_FOURCC('I','4','2','0'), VLC_FOURCC('R','V','2','4'),
 255     0,                           VLC_FOURCC('Y','4','2','2'),
 256     VLC_FOURCC('I','4','4','4'), 0
 257 };
 258
 259 static inline u32 ffmpeg_PixFmtToChroma( int i_ffmpegchroma )
 260 {
 261     if( ++i_ffmpegchroma > 7 )
 262     {
 263         return( 0 );
 264     }
 265     else
 266     {
 267         return( i_ffmpeg_PixFmtToChroma[i_ffmpegchroma] );
 268     }
 269 }
 270
 271 static inline int ffmpeg_FfAspect( int i_width, int i_height, int i_ffaspect )
 272 {
 273     switch( i_ffaspect )
 274     {
 275         case( FF_ASPECT_4_3_625 ):
 276         case( FF_ASPECT_4_3_525 ):
 277             return( VOUT_ASPECT_FACTOR * 4 / 3);
 278         case( FF_ASPECT_16_9_625 ):
 279         case( FF_ASPECT_16_9_525 ):
 280             return( VOUT_ASPECT_FACTOR * 16 / 9 );
 281         case( FF_ASPECT_SQUARE ):
 282         default:
 283             return( VOUT_ASPECT_FACTOR * i_width / i_height );
 284     }
 285 }
 286