ffmpeg/libavcodec/dv_profile.c

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdint.h>
  22
  23 #include "libavutil/common.h"
  24 #include "libavutil/intreadwrite.h"
  25 #include "libavutil/log.h"
  26 #include "libavutil/pixdesc.h"
  27
  28 #include "avcodec.h"
  29 #include "dv_profile.h"
  30 #include "dv_profile_internal.h"
  31
  32 #if CONFIG_DVPROFILE
  33
  34 static const uint8_t dv_audio_shuffle525[10][9] = {
  35     {  0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
  36     {  6, 36, 66, 26, 56, 86, 16, 46, 76 },
  37     { 12, 42, 72,  2, 32, 62, 22, 52, 82 },
  38     { 18, 48, 78,  8, 38, 68, 28, 58, 88 },
  39     { 24, 54, 84, 14, 44, 74,  4, 34, 64 },
  40
  41     {  1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
  42     {  7, 37, 67, 27, 57, 87, 17, 47, 77 },
  43     { 13, 43, 73,  3, 33, 63, 23, 53, 83 },
  44     { 19, 49, 79,  9, 39, 69, 29, 59, 89 },
  45     { 25, 55, 85, 15, 45, 75,  5, 35, 65 },
  46 };
  47
  48 static const uint8_t dv_audio_shuffle625[12][9] = {
  49     {  0, 36,  72, 26, 62,  98, 16, 52,  88 }, /* 1st channel */
  50     {  6, 42,  78, 32, 68, 104, 22, 58,  94 },
  51     { 12, 48,  84,  2, 38,  74, 28, 64, 100 },
  52     { 18, 54,  90,  8, 44,  80, 34, 70, 106 },
  53     { 24, 60,  96, 14, 50,  86,  4, 40,  76 },
  54     { 30, 66, 102, 20, 56,  92, 10, 46,  82 },
  55
  56     {  1, 37,  73, 27, 63,  99, 17, 53,  89 }, /* 2nd channel */
  57     {  7, 43,  79, 33, 69, 105, 23, 59,  95 },
  58     { 13, 49,  85,  3, 39,  75, 29, 65, 101 },
  59     { 19, 55,  91,  9, 45,  81, 35, 71, 107 },
  60     { 25, 61,  97, 15, 51,  87,  5, 41,  77 },
  61     { 31, 67, 103, 21, 57,  93, 11, 47,  83 },
  62 };
  63
  64 /* macroblock bit budgets */
  65 static const uint8_t block_sizes_dv2550[8] = {
  66     112, 112, 112, 112, 80, 80, 0, 0,
  67 };
  68
  69 static const uint8_t block_sizes_dv100[8] = {
  70     80, 80, 80, 80, 80, 80, 64, 64,
  71 };
  72
  73 static const AVDVProfile dv_profiles[] = {
  74     { .dsf                = 0,
  75       .video_stype        = 0x0,
  76       .frame_size         = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
  77       .difseg_size        = 10,
  78       .n_difchan          = 1,
  79       .time_base          = { 1001, 30000 },
  80       .ltc_divisor        = 30,
  81       .height             = 480,
  82       .width              = 720,
  83       .sar                = { { 8, 9 }, { 32, 27 } },
  84       .pix_fmt            = AV_PIX_FMT_YUV411P,
  85       .bpm                = 6,
  86       .block_sizes        = block_sizes_dv2550,
  87       .audio_stride       = 90,
  88       .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
  89       .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 },  /* per SMPTE-314M */
  90       .audio_shuffle      = dv_audio_shuffle525, },
  91     { .dsf                = 1,
  92       .video_stype        = 0x0,
  93       .frame_size         = 144000, /* IEC 61834 - 625/50 (PAL) */
  94       .difseg_size        = 12,
  95       .n_difchan          = 1,
  96       .time_base          = { 1, 25 },
  97       .ltc_divisor        = 25,
  98       .height             = 576,
  99       .width              = 720,
 100       .sar                = { { 16, 15 }, { 64, 45 } },
 101       .pix_fmt            = AV_PIX_FMT_YUV420P,
 102       .bpm                = 6,
 103       .block_sizes        = block_sizes_dv2550,
 104       .audio_stride       = 108,
 105       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
 106       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
 107       .audio_shuffle      = dv_audio_shuffle625, },
 108     { .dsf                = 1,
 109       .video_stype        = 0x0,
 110       .frame_size         = 144000, /* SMPTE-314M - 625/50 (PAL) */
 111       .difseg_size        = 12,
 112       .n_difchan          = 1,
 113       .time_base          = { 1, 25 },
 114       .ltc_divisor        = 25,
 115       .height             = 576,
 116       .width              = 720,
 117       .sar                = { { 16, 15 }, { 64, 45 } },
 118       .pix_fmt            = AV_PIX_FMT_YUV411P,
 119       .bpm                = 6,
 120       .block_sizes        = block_sizes_dv2550,
 121       .audio_stride       = 108,
 122       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
 123       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
 124       .audio_shuffle      = dv_audio_shuffle625, },
 125     { .dsf                = 0,
 126       .video_stype        = 0x4,
 127       .frame_size         = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
 128       .difseg_size        = 10,    /* also known as "DVCPRO50" */
 129       .n_difchan          = 2,
 130       .time_base          = { 1001, 30000 },
 131       .ltc_divisor        = 30,
 132       .height             = 480,
 133       .width              = 720,
 134       .sar                = { { 8, 9 }, { 32, 27 } },
 135       .pix_fmt            = AV_PIX_FMT_YUV422P,
 136       .bpm                = 6,
 137       .block_sizes        = block_sizes_dv2550,
 138       .audio_stride       = 90,
 139       .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
 140       .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 },  /* per SMPTE-314M */
 141       .audio_shuffle      = dv_audio_shuffle525, },
 142     { .dsf                = 1,
 143       .video_stype        = 0x4,
 144       .frame_size         = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
 145       .difseg_size        = 12,    /* also known as "DVCPRO50" */
 146       .n_difchan          = 2,
 147       .time_base          = { 1, 25 },
 148       .ltc_divisor        = 25,
 149       .height             = 576,
 150       .width              = 720,
 151       .sar                = { { 16, 15 }, { 64, 45 } },
 152       .pix_fmt            = AV_PIX_FMT_YUV422P,
 153       .bpm                = 6,
 154       .block_sizes        = block_sizes_dv2550,
 155       .audio_stride       = 108,
 156       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
 157       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
 158       .audio_shuffle      = dv_audio_shuffle625, },
 159     { .dsf                = 0,
 160       .video_stype        = 0x14,
 161       .frame_size         = 480000, /* SMPTE-370M - 1080i60 100 Mbps */
 162       .difseg_size        = 10,    /* also known as "DVCPRO HD" */
 163       .n_difchan          = 4,
 164       .time_base          = { 1001, 30000 },
 165       .ltc_divisor        = 30,
 166       .height             = 1080,
 167       .width              = 1280,
 168       .sar                = { { 1, 1 }, { 3, 2 } },
 169       .pix_fmt            = AV_PIX_FMT_YUV422P,
 170       .bpm                = 8,
 171       .block_sizes        = block_sizes_dv100,
 172       .audio_stride       = 90,
 173       .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
 174       .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 },  /* per SMPTE-314M */
 175       .audio_shuffle      = dv_audio_shuffle525, },
 176     { .dsf                = 1,
 177       .video_stype        = 0x14,
 178       .frame_size         = 576000, /* SMPTE-370M - 1080i50 100 Mbps */
 179       .difseg_size        = 12,    /* also known as "DVCPRO HD" */
 180       .n_difchan          = 4,
 181       .time_base          = { 1, 25 },
 182       .ltc_divisor        = 25,
 183       .height             = 1080,
 184       .width              = 1440,
 185       .sar                = { { 1, 1 }, { 4, 3 } },
 186       .pix_fmt            = AV_PIX_FMT_YUV422P,
 187       .bpm                = 8,
 188       .block_sizes        = block_sizes_dv100,
 189       .audio_stride       = 108,
 190       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
 191       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
 192       .audio_shuffle      = dv_audio_shuffle625, },
 193     { .dsf                = 0,
 194       .video_stype        = 0x18,
 195       .frame_size         = 240000, /* SMPTE-370M - 720p60 100 Mbps */
 196       .difseg_size        = 10,    /* also known as "DVCPRO HD" */
 197       .n_difchan          = 2,
 198       .time_base          = { 1001, 60000 },
 199       .ltc_divisor        = 60,
 200       .height             = 720,
 201       .width              = 960,
 202       .sar                = { { 1, 1 }, { 4, 3 } },
 203       .pix_fmt            = AV_PIX_FMT_YUV422P,
 204       .bpm                = 8,
 205       .block_sizes        = block_sizes_dv100,
 206       .audio_stride       = 90,
 207       .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
 208       .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 },  /* per SMPTE-314M */
 209       .audio_shuffle      = dv_audio_shuffle525, },
 210     { .dsf                = 1,
 211       .video_stype        = 0x18,
 212       .frame_size         = 288000, /* SMPTE-370M - 720p50 100 Mbps */
 213       .difseg_size        = 12,    /* also known as "DVCPRO HD" */
 214       .n_difchan          = 2,
 215       .time_base          = { 1, 50 },
 216       .ltc_divisor        = 50,
 217       .height             = 720,
 218       .width              = 960,
 219       .sar                = { { 1, 1 }, { 4, 3 } },
 220       .pix_fmt            = AV_PIX_FMT_YUV422P,
 221       .bpm                = 8,
 222       .block_sizes        = block_sizes_dv100,
 223       .audio_stride       = 90,
 224       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
 225       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
 226       .audio_shuffle      = dv_audio_shuffle625, },
 227     { .dsf                = 1,
 228       .video_stype        = 0x1,
 229       .frame_size         = 144000, /* IEC 61883-5 - 625/50 (PAL) */
 230       .difseg_size        = 12,
 231       .n_difchan          = 1,
 232       .time_base          = { 1, 25 },
 233       .ltc_divisor        = 25,
 234       .height             = 576,
 235       .width              = 720,
 236       .sar                = { { 16, 15 }, { 64, 45 } },
 237       .pix_fmt            = AV_PIX_FMT_YUV420P,
 238       .bpm                = 6,
 239       .block_sizes        = block_sizes_dv2550,
 240       .audio_stride       = 108,
 241       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
 242       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
 243       .audio_shuffle      = dv_audio_shuffle625, }
 244 };
 245
 246 void ff_dv_print_profiles(void *logctx, int loglevel)
 247 {
 248     int i;
 249     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
 250         const AVDVProfile *p = &dv_profiles[i];
 251         av_log(logctx, loglevel,
 252                "Frame size: %dx%d; pixel format: %s, framerate: %d/%d\n",
 253                p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
 254                p->time_base.den, p->time_base.num);
 255     }
 256 }
 257
 258 #endif /* CONFIG_DVPROFILE */
 259
 260 const AVDVProfile* ff_dv_frame_profile(AVCodecContext* codec, const AVDVProfile *sys,
 261                                        const uint8_t *frame, unsigned buf_size)
 262 {
 263 #if CONFIG_DVPROFILE
 264     int i, dsf, stype;
 265
 266     if(buf_size < DV_PROFILE_BYTES)
 267         return NULL;
 268
 269     dsf   = (frame[3] & 0x80) >> 7;
 270     stype = frame[80 * 5 + 48 + 3] & 0x1f;
 271
 272     /* 576i50 25Mbps 4:1:1 is a special case */
 273     if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) ||
 274         (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576))
 275         return &dv_profiles[2];
 276
 277     if(   stype == 0
 278        && codec
 279        && (codec->codec_tag==AV_RL32("dvsd") || codec->codec_tag==AV_RL32("CDVC"))
 280        && codec->coded_width ==720
 281        && codec->coded_height==576)
 282         return &dv_profiles[1];
 283
 284     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
 285         if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
 286             return &dv_profiles[i];
 287
 288     /* check if old sys matches and assumes corrupted input */
 289     if (sys && buf_size == sys->frame_size)
 290         return sys;
 291
 292     /* hack for trac issue #217, dv files created with QuickTime 3 */
 293     if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
 294         return &dv_profiles[dsf];
 295 #endif
 296
 297     return NULL;
 298 }
 299
 300 #if FF_API_DV_FRAME_PROFILE
 301 const AVDVProfile* avpriv_dv_frame_profile2(AVCodecContext* codec, const AVDVProfile *sys,
 302                                             const uint8_t *frame, unsigned buf_size)
 303 {
 304     return ff_dv_frame_profile(codec, sys, frame, buf_size);
 305 }
 306 #endif
 307
 308 const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
 309                                        const uint8_t *frame, unsigned buf_size)
 310 {
 311     return ff_dv_frame_profile(NULL, sys, frame, buf_size);
 312 }
 313
 314 const AVDVProfile *av_dv_codec_profile(int width, int height,
 315                                        enum AVPixelFormat pix_fmt)
 316 {
 317 #if CONFIG_DVPROFILE
 318     int i;
 319
 320     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
 321         if (height  == dv_profiles[i].height  &&
 322             pix_fmt == dv_profiles[i].pix_fmt &&
 323             width   == dv_profiles[i].width)
 324             return &dv_profiles[i];
 325 #endif
 326
 327     return NULL;
 328 }
 329