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FFmpeg/libavcodec/dv_profile.c

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  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 <stdint.h>

  20. 

  21. #include "config.h"

  22. 

  23. #include "libavutil/common.h"

  24. #include "libavutil/intreadwrite.h"

  25. #include "libavutil/log.h"

  26. #include "libavutil/pixdesc.h"

  27. #include "avcodec.h"

  28. #include "dv_profile.h"

  29. #include "dv_profile_internal.h"

  30. 

  31. #if CONFIG_DVPROFILE

  32. 

  33. static const uint8_t dv_audio_shuffle525[10][9] = {

  34.   {  0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */

  35.   {  6, 36, 66, 26, 56, 86, 16, 46, 76 },

  36.   { 12, 42, 72,  2, 32, 62, 22, 52, 82 },

  37.   { 18, 48, 78,  8, 38, 68, 28, 58, 88 },

  38.   { 24, 54, 84, 14, 44, 74,  4, 34, 64 },

  39. 

  40.   {  1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */

  41.   {  7, 37, 67, 27, 57, 87, 17, 47, 77 },

  42.   { 13, 43, 73,  3, 33, 63, 23, 53, 83 },

  43.   { 19, 49, 79,  9, 39, 69, 29, 59, 89 },

  44.   { 25, 55, 85, 15, 45, 75,  5, 35, 65 },

  45. };

  46. 

  47. static const uint8_t dv_audio_shuffle625[12][9] = {

  48.   {   0,  36,  72,  26,  62,  98,  16,  52,  88}, /* 1st channel */

  49.   {   6,  42,  78,  32,  68, 104,  22,  58,  94},

  50.   {  12,  48,  84,   2,  38,  74,  28,  64, 100},

  51.   {  18,  54,  90,   8,  44,  80,  34,  70, 106},

  52.   {  24,  60,  96,  14,  50,  86,   4,  40,  76},

  53.   {  30,  66, 102,  20,  56,  92,  10,  46,  82},

  54. 

  55.   {   1,  37,  73,  27,  63,  99,  17,  53,  89}, /* 2nd channel */

  56.   {   7,  43,  79,  33,  69, 105,  23,  59,  95},

  57.   {  13,  49,  85,   3,  39,  75,  29,  65, 101},

  58.   {  19,  55,  91,   9,  45,  81,  35,  71, 107},

  59.   {  25,  61,  97,  15,  51,  87,   5,  41,  77},

  60.   {  31,  67, 103,  21,  57,  93,  11,  47,  83},

  61. };

  62. 

  63. /* macroblock bit budgets */

  64. static const uint8_t block_sizes_dv2550[8] = {

  65.     112, 112, 112, 112, 80, 80, 0, 0,

  66. };

  67. 

  68. static const uint8_t block_sizes_dv100[8] = {

  69.     80, 80, 80, 80, 80, 80, 64, 64,

  70. };

  71. 

  72. static const AVDVProfile dv_profiles[] = {

  73.     { .dsf = 0,

  74.       .video_stype = 0x0,

  75.       .frame_size = 120000,        /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */

  76.       .difseg_size = 10,

  77.       .n_difchan = 1,

  78.       .time_base = { 1001, 30000 },

  79.       .ltc_divisor = 30,

  80.       .height = 480,

  81.       .width = 720,

  82.       .sar = {{8, 9}, {32, 27}},

  83.       .pix_fmt = AV_PIX_FMT_YUV411P,

  84.       .bpm = 6,

  85.       .block_sizes = block_sizes_dv2550,

  86.       .audio_stride = 90,

  87.       .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */

  88.       .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */

  89.       .audio_shuffle = dv_audio_shuffle525,

  90.     },

  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.     },

  109.     { .dsf = 1,

  110.       .video_stype = 0x0,

  111.       .frame_size = 144000,        /* SMPTE-314M - 625/50 (PAL) */

  112.       .difseg_size = 12,

  113.       .n_difchan = 1,

  114.       .time_base = { 1, 25 },

  115.       .ltc_divisor = 25,

  116.       .height = 576,

  117.       .width = 720,

  118.       .sar = {{16, 15}, {64, 45}},

  119.       .pix_fmt = AV_PIX_FMT_YUV411P,

  120.       .bpm = 6,

  121.       .block_sizes = block_sizes_dv2550,

  122.       .audio_stride = 108,

  123.       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */

  124.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  125.       .audio_shuffle = dv_audio_shuffle625,

  126.     },

  127.     { .dsf = 0,

  128.       .video_stype = 0x4,

  129.       .frame_size = 240000,        /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */

  130.       .difseg_size = 10,           /* also known as "DVCPRO50" */

  131.       .n_difchan = 2,

  132.       .time_base = { 1001, 30000 },

  133.       .ltc_divisor = 30,

  134.       .height = 480,

  135.       .width = 720,

  136.       .sar = {{8, 9}, {32, 27}},

  137.       .pix_fmt = AV_PIX_FMT_YUV422P,

  138.       .bpm = 6,

  139.       .block_sizes = block_sizes_dv2550,

  140.       .audio_stride = 90,

  141.       .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */

  142.       .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */

  143.       .audio_shuffle = dv_audio_shuffle525,

  144.     },

  145.     { .dsf = 1,

  146.       .video_stype = 0x4,

  147.       .frame_size = 288000,        /* SMPTE-314M - 625/50 (PAL) 50 Mbps */

  148.       .difseg_size = 12,           /* also known as "DVCPRO50" */

  149.       .n_difchan = 2,

  150.       .time_base = { 1, 25 },

  151.       .ltc_divisor = 25,

  152.       .height = 576,

  153.       .width = 720,

  154.       .sar = {{16, 15}, {64, 45}},

  155.       .pix_fmt = AV_PIX_FMT_YUV422P,

  156.       .bpm = 6,

  157.       .block_sizes = block_sizes_dv2550,

  158.       .audio_stride = 108,

  159.       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */

  160.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  161.       .audio_shuffle = dv_audio_shuffle625,

  162.     },

  163.     { .dsf = 0,

  164.       .video_stype = 0x14,

  165.       .frame_size = 480000,        /* SMPTE-370M - 1080i60 100 Mbps */

  166.       .difseg_size = 10,           /* also known as "DVCPRO HD" */

  167.       .n_difchan = 4,

  168.       .time_base = { 1001, 30000 },

  169.       .ltc_divisor = 30,

  170.       .height = 1080,

  171.       .width = 1280,

  172.       .sar = {{1, 1}, {3, 2}},

  173.       .pix_fmt = AV_PIX_FMT_YUV422P,

  174.       .bpm = 8,

  175.       .block_sizes = block_sizes_dv100,

  176.       .audio_stride = 90,

  177.       .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */

  178.       .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */

  179.       .audio_shuffle = dv_audio_shuffle525,

  180.     },

  181.     { .dsf = 1,

  182.       .video_stype = 0x14,

  183.       .frame_size = 576000,        /* SMPTE-370M - 1080i50 100 Mbps */

  184.       .difseg_size = 12,           /* also known as "DVCPRO HD" */

  185.       .n_difchan = 4,

  186.       .time_base = { 1, 25 },

  187.       .ltc_divisor = 25,

  188.       .height = 1080,

  189.       .width = 1440,

  190.       .sar = {{1, 1}, {4, 3}},

  191.       .pix_fmt = AV_PIX_FMT_YUV422P,

  192.       .bpm = 8,

  193.       .block_sizes = block_sizes_dv100,

  194.       .audio_stride = 108,

  195.       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */

  196.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  197.       .audio_shuffle = dv_audio_shuffle625,

  198.     },

  199.     { .dsf = 0,

  200.       .video_stype = 0x18,

  201.       .frame_size = 240000,        /* SMPTE-370M - 720p60 100 Mbps */

  202.       .difseg_size = 10,           /* also known as "DVCPRO HD" */

  203.       .n_difchan = 2,

  204.       .time_base = { 1001, 60000 },

  205.       .ltc_divisor = 60,

  206.       .height = 720,

  207.       .width = 960,

  208.       .sar = {{1, 1}, {4, 3}},

  209.       .pix_fmt = AV_PIX_FMT_YUV422P,

  210.       .bpm = 8,

  211.       .block_sizes = block_sizes_dv100,

  212.       .audio_stride = 90,

  213.       .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */

  214.       .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */

  215.       .audio_shuffle = dv_audio_shuffle525,

  216.     },

  217.     { .dsf = 1,

  218.       .video_stype = 0x18,

  219.       .frame_size = 288000,        /* SMPTE-370M - 720p50 100 Mbps */

  220.       .difseg_size = 12,           /* also known as "DVCPRO HD" */

  221.       .n_difchan = 2,

  222.       .time_base = { 1, 50 },

  223.       .ltc_divisor = 50,

  224.       .height = 720,

  225.       .width = 960,

  226.       .sar = {{1, 1}, {4, 3}},

  227.       .pix_fmt = AV_PIX_FMT_YUV422P,

  228.       .bpm = 8,

  229.       .block_sizes = block_sizes_dv100,

  230.       .audio_stride = 90,

  231.       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */

  232.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  233.       .audio_shuffle = dv_audio_shuffle625,

  234.     },

  235.     { .dsf = 1,

  236.       .video_stype = 0x1,

  237.       .frame_size = 144000,        /* IEC 61883-5 - 625/50 (PAL) */

  238.       .difseg_size = 12,

  239.       .n_difchan = 1,

  240.       .time_base = { 1, 25 },

  241.       .ltc_divisor = 25,

  242.       .height = 576,

  243.       .width = 720,

  244.       .sar = {{16, 15}, {64, 45}},

  245.       .pix_fmt = AV_PIX_FMT_YUV420P,

  246.       .bpm = 6,

  247.       .block_sizes = block_sizes_dv2550,

  248.       .audio_stride = 108,

  249.       .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */

  250.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  251.       .audio_shuffle = dv_audio_shuffle625,

  252.     }

  253. };

  254. 

  255. void ff_dv_print_profiles(void *logctx, int loglevel)

  256. {

  257.     int i;

  258.     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {

  259.         const AVDVProfile *p = &dv_profiles[i];

  260.         av_log(logctx, loglevel, "Frame size: %dx%d; pixel format: %s, "

  261.                "framerate: %d/%d\n", p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),

  262.                p->time_base.den, p->time_base.num);

  263.     }

  264. }

  265. 

  266. #endif /* CONFIG_DVPROFILE */

  267. 

  268. const AVDVProfile* avpriv_dv_frame_profile2(AVCodecContext* codec, const AVDVProfile *sys,

  269.                                        const uint8_t* frame, unsigned buf_size)

  270. {

  271. #if CONFIG_DVPROFILE

  272.     int i, dsf, stype;

  273. 

  274.     if(buf_size < DV_PROFILE_BYTES)

  275.         return NULL;

  276. 

  277.     dsf = (frame[3] & 0x80) >> 7;

  278.     stype = frame[80 * 5 + 48 + 3] & 0x1f;

  279. 

  280.     /* 576i50 25Mbps 4:1:1 is a special case */

  281.     if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) ||

  282.         (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576)) {

  283.         return &dv_profiles[2];

  284.     }

  285. 

  286.     if(   stype == 0

  287.        && codec

  288.        && (codec->codec_tag==AV_RL32("dvsd") || codec->codec_tag==AV_RL32("CDVC"))

  289.        && codec->coded_width ==720

  290.        && codec->coded_height==576)

  291.         return &dv_profiles[1];

  292. 

  293.     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)

  294.         if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)

  295.             return &dv_profiles[i];

  296. 

  297.     /* check if old sys matches and assumes corrupted input */

  298.     if (sys && buf_size == sys->frame_size)

  299.         return sys;

  300. 

  301.     /* hack for trac issue #217, dv files created with QuickTime 3 */

  302.     if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)

  303.         return &dv_profiles[dsf];

  304. #endif

  305. 

  306.     return NULL;

  307. }

  308. 

  309. const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,

  310.                                        const uint8_t* frame, unsigned buf_size)

  311. {

  312.     return avpriv_dv_frame_profile2(NULL, sys, frame, buf_size);

  313. }

  314. 

  315. const AVDVProfile *av_dv_codec_profile(int width, int height,

  316.                                        enum AVPixelFormat pix_fmt)

  317. {

  318. #if CONFIG_DVPROFILE

  319.     int i;

  320. 

  321.     for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)

  322.        if (height  == dv_profiles[i].height  &&

  323.            pix_fmt == dv_profiles[i].pix_fmt &&

  324.            width   == dv_profiles[i].width)

  325.            return &dv_profiles[i];

  326. #endif

  327. 

  328.     return NULL;

  329. }

  330. 

  331. #if LIBAVCODEC_VERSION_MAJOR < 56

  332. const AVDVProfile *avpriv_dv_frame_profile(const AVDVProfile *sys,

  333.                                          const uint8_t* frame, unsigned buf_size)

  334. {

  335.     return av_dv_frame_profile(sys, frame, buf_size);

  336. }

  337. 

  338. const AVDVProfile *avpriv_dv_codec_profile(AVCodecContext *codec)

  339. {

  340.     if (codec->coded_width || codec->coded_height) {

  341.         return av_dv_codec_profile(codec->coded_width, codec->coded_height, codec->pix_fmt);

  342.     } else

  343.         return av_dv_codec_profile(codec->width, codec->height, codec->pix_fmt);

  344. }

  345. #endif