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FFmpeg/libavcodec/dvdata.c

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  1. /*

  2.  * Constants for DV codec

  3.  * Copyright (c) 2002 Fabrice Bellard

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

  7.  * FFmpeg is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

  10.  * version 2.1 of the License, or (at your option) any later version.

  11.  *

  12.  * FFmpeg is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with FFmpeg; if not, write to the Free Software

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  20.  */

  21. 

  22. /**

  23.  * @file

  24.  * Constants for DV codec.

  25.  */

  26. 

  27. #include "libavutil/rational.h"

  28. #include "libavutil/intreadwrite.h"

  29. #include "libavutil/pixdesc.h"

  30. #include "avcodec.h"

  31. #include "dvdata.h"

  32. 

  33. static DVwork_chunk work_chunks_dv25pal   [1*12*27];

  34. static DVwork_chunk work_chunks_dv25pal411[1*12*27];

  35. static DVwork_chunk work_chunks_dv25ntsc  [1*10*27];

  36. static DVwork_chunk work_chunks_dv50pal   [2*12*27];

  37. static DVwork_chunk work_chunks_dv50ntsc  [2*10*27];

  38. static DVwork_chunk work_chunks_dv100palp [2*12*27];

  39. static DVwork_chunk work_chunks_dv100ntscp[2*10*27];

  40. static DVwork_chunk work_chunks_dv100pali [4*12*27];

  41. static DVwork_chunk work_chunks_dv100ntsci[4*10*27];

  42. 

  43. static uint32_t dv_idct_factor_sd    [2*2*22*64];

  44. static uint32_t dv_idct_factor_hd1080[2*4*16*64];

  45. static uint32_t dv_idct_factor_hd720 [2*4*16*64];

  46. 

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

  48.   {  0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */

  49.   {  6, 36, 66, 26, 56, 86, 16, 46, 76 },

  50.   { 12, 42, 72,  2, 32, 62, 22, 52, 82 },

  51.   { 18, 48, 78,  8, 38, 68, 28, 58, 88 },

  52.   { 24, 54, 84, 14, 44, 74,  4, 34, 64 },

  53. 

  54.   {  1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */

  55.   {  7, 37, 67, 27, 57, 87, 17, 47, 77 },

  56.   { 13, 43, 73,  3, 33, 63, 23, 53, 83 },

  57.   { 19, 49, 79,  9, 39, 69, 29, 59, 89 },

  58.   { 25, 55, 85, 15, 45, 75,  5, 35, 65 },

  59. };

  60. 

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

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

  63.   {   6,  42,  78,  32,  68, 104,  22,  58,  94},

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

  65.   {  18,  54,  90,   8,  44,  80,  34,  70, 106},

  66.   {  24,  60,  96,  14,  50,  86,   4,  40,  76},

  67.   {  30,  66, 102,  20,  56,  92,  10,  46,  82},

  68. 

  69.   {   1,  37,  73,  27,  63,  99,  17,  53,  89}, /* 2nd channel */

  70.   {   7,  43,  79,  33,  69, 105,  23,  59,  95},

  71.   {  13,  49,  85,   3,  39,  75,  29,  65, 101},

  72.   {  19,  55,  91,   9,  45,  81,  35,  71, 107},

  73.   {  25,  61,  97,  15,  51,  87,   5,  41,  77},

  74.   {  31,  67, 103,  21,  57,  93,  11,  47,  83},

  75. };

  76. 

  77. /* macroblock bit budgets */

  78. static const uint8_t block_sizes_dv2550[8] = {

  79.     112, 112, 112, 112, 80, 80, 0, 0,

  80. };

  81. 

  82. static const uint8_t block_sizes_dv100[8] = {

  83.     80, 80, 80, 80, 80, 80, 64, 64,

  84. };

  85. static const DVprofile dv_profiles[] = {

  86.     { .dsf = 0,

  87.       .video_stype = 0x0,

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

  89.       .difseg_size = 10,

  90.       .n_difchan = 1,

  91.       .time_base = { 1001, 30000 },

  92.       .ltc_divisor = 30,

  93.       .height = 480,

  94.       .width = 720,

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

  96.       .work_chunks = &work_chunks_dv25ntsc[0],

  97.       .idct_factor = &dv_idct_factor_sd[0],

  98.       .pix_fmt = PIX_FMT_YUV411P,

  99.       .bpm = 6,

  100.       .block_sizes = block_sizes_dv2550,

  101.       .audio_stride = 90,

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

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

  104.       .audio_shuffle = dv_audio_shuffle525,

  105.     },

  106.     { .dsf = 1,

  107.       .video_stype = 0x0,

  108.       .frame_size = 144000,        /* IEC 61834 - 625/50 (PAL) */

  109.       .difseg_size = 12,

  110.       .n_difchan = 1,

  111.       .time_base = { 1, 25 },

  112.       .ltc_divisor = 25,

  113.       .height = 576,

  114.       .width = 720,

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

  116.       .work_chunks = &work_chunks_dv25pal[0],

  117.       .idct_factor = &dv_idct_factor_sd[0],

  118.       .pix_fmt = PIX_FMT_YUV420P,

  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.     },

  126.     { .dsf = 1,

  127.       .video_stype = 0x0,

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

  129.       .difseg_size = 12,

  130.       .n_difchan = 1,

  131.       .time_base = { 1, 25 },

  132.       .ltc_divisor = 25,

  133.       .height = 576,

  134.       .width = 720,

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

  136.       .work_chunks = &work_chunks_dv25pal411[0],

  137.       .idct_factor = &dv_idct_factor_sd[0],

  138.       .pix_fmt = PIX_FMT_YUV411P,

  139.       .bpm = 6,

  140.       .block_sizes = block_sizes_dv2550,

  141.       .audio_stride = 108,

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

  143.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  144.       .audio_shuffle = dv_audio_shuffle625,

  145.     },

  146.     { .dsf = 0,

  147.       .video_stype = 0x4,

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

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

  150.       .n_difchan = 2,

  151.       .time_base = { 1001, 30000 },

  152.       .ltc_divisor = 30,

  153.       .height = 480,

  154.       .width = 720,

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

  156.       .work_chunks = &work_chunks_dv50ntsc[0],

  157.       .idct_factor = &dv_idct_factor_sd[0],

  158.       .pix_fmt = PIX_FMT_YUV422P,

  159.       .bpm = 6,

  160.       .block_sizes = block_sizes_dv2550,

  161.       .audio_stride = 90,

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

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

  164.       .audio_shuffle = dv_audio_shuffle525,

  165.     },

  166.     { .dsf = 1,

  167.       .video_stype = 0x4,

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

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

  170.       .n_difchan = 2,

  171.       .time_base = { 1, 25 },

  172.       .ltc_divisor = 25,

  173.       .height = 576,

  174.       .width = 720,

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

  176.       .work_chunks = &work_chunks_dv50pal[0],

  177.       .idct_factor = &dv_idct_factor_sd[0],

  178.       .pix_fmt = PIX_FMT_YUV422P,

  179.       .bpm = 6,

  180.       .block_sizes = block_sizes_dv2550,

  181.       .audio_stride = 108,

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

  183.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  184.       .audio_shuffle = dv_audio_shuffle625,

  185.     },

  186.     { .dsf = 0,

  187.       .video_stype = 0x14,

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

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

  190.       .n_difchan = 4,

  191.       .time_base = { 1001, 30000 },

  192.       .ltc_divisor = 30,

  193.       .height = 1080,

  194.       .width = 1280,

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

  196.       .work_chunks = &work_chunks_dv100ntsci[0],

  197.       .idct_factor = &dv_idct_factor_hd1080[0],

  198.       .pix_fmt = PIX_FMT_YUV422P,

  199.       .bpm = 8,

  200.       .block_sizes = block_sizes_dv100,

  201.       .audio_stride = 90,

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

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

  204.       .audio_shuffle = dv_audio_shuffle525,

  205.     },

  206.     { .dsf = 1,

  207.       .video_stype = 0x14,

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

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

  210.       .n_difchan = 4,

  211.       .time_base = { 1, 25 },

  212.       .ltc_divisor = 25,

  213.       .height = 1080,

  214.       .width = 1440,

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

  216.       .work_chunks = &work_chunks_dv100pali[0],

  217.       .idct_factor = &dv_idct_factor_hd1080[0],

  218.       .pix_fmt = PIX_FMT_YUV422P,

  219.       .bpm = 8,

  220.       .block_sizes = block_sizes_dv100,

  221.       .audio_stride = 108,

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

  223.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  224.       .audio_shuffle = dv_audio_shuffle625,

  225.     },

  226.     { .dsf = 0,

  227.       .video_stype = 0x18,

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

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

  230.       .n_difchan = 2,

  231.       .time_base = { 1001, 60000 },

  232.       .ltc_divisor = 60,

  233.       .height = 720,

  234.       .width = 960,

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

  236.       .work_chunks = &work_chunks_dv100ntscp[0],

  237.       .idct_factor = &dv_idct_factor_hd720[0],

  238.       .pix_fmt = PIX_FMT_YUV422P,

  239.       .bpm = 8,

  240.       .block_sizes = block_sizes_dv100,

  241.       .audio_stride = 90,

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

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

  244.       .audio_shuffle = dv_audio_shuffle525,

  245.     },

  246.     { .dsf = 1,

  247.       .video_stype = 0x18,

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

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

  250.       .n_difchan = 2,

  251.       .time_base = { 1, 50 },

  252.       .ltc_divisor = 50,

  253.       .height = 720,

  254.       .width = 960,

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

  256.       .work_chunks = &work_chunks_dv100palp[0],

  257.       .idct_factor = &dv_idct_factor_hd720[0],

  258.       .pix_fmt = PIX_FMT_YUV422P,

  259.       .bpm = 8,

  260.       .block_sizes = block_sizes_dv100,

  261.       .audio_stride = 90,

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

  263.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  264.       .audio_shuffle = dv_audio_shuffle625,

  265.     },

  266.     { .dsf = 1,

  267.       .video_stype = 0x1,

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

  269.       .difseg_size = 12,

  270.       .n_difchan = 1,

  271.       .time_base = { 1, 25 },

  272.       .ltc_divisor = 25,

  273.       .height = 576,

  274.       .width = 720,

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

  276.       .work_chunks = &work_chunks_dv25pal[0],

  277.       .idct_factor = &dv_idct_factor_sd[0],

  278.       .pix_fmt = PIX_FMT_YUV420P,

  279.       .bpm = 6,

  280.       .block_sizes = block_sizes_dv2550,

  281.       .audio_stride = 108,

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

  283.       .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },

  284.       .audio_shuffle = dv_audio_shuffle625,

  285.     }

  286. };

  287. 

  288. const DVprofile* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile *sys,

  289.                                   const uint8_t* frame, unsigned buf_size)

  290. {

  291.     int i, dsf, stype;

  292. 

  293.     if(buf_size < DV_PROFILE_BYTES)

  294.         return NULL;

  295. 

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

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

  298. 

  299.     /* 576i50 25Mbps 4:1:1 is a special case */

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

  301.         return &dv_profiles[2];

  302.     }

  303. 

  304.     if(stype == 0 && codec && codec->codec_tag==AV_RL32("dvsd") && codec->coded_width==720 && codec->coded_height==576)

  305.         return &dv_profiles[1];

  306. 

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

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

  309.             return &dv_profiles[i];

  310. 

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

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

  313.         return sys;

  314. 

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

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

  317.         return &dv_profiles[dsf];

  318. 

  319.     return NULL;

  320. }

  321. 

  322. const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys,

  323.                                   const uint8_t* frame, unsigned buf_size)

  324. {

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

  326. }

  327. 

  328. const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec)

  329. {

  330.     int i;

  331.     int w, h;

  332. 

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

  334.         w = codec->coded_width;

  335.         h = codec->coded_height;

  336.     } else {

  337.         w = codec->width;

  338.         h = codec->height;

  339.     }

  340. 

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

  342.        if (h == dv_profiles[i].height  &&

  343.            codec->pix_fmt      == dv_profiles[i].pix_fmt &&

  344.            w == dv_profiles[i].width)

  345.                return &dv_profiles[i];

  346. 

  347.     return NULL;

  348. }

  349. 

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

  351. {

  352.     int i;

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

  354.         const DVprofile *p = &dv_profiles[i];

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

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

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

  358.     }

  359. }