LCOV - code coverage report
Current view: top level - libavcodec - dv_profile.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 23 43 53.5 %
Date: 2017-12-14 08:27:08 Functions: 3 5 60.0 %

          Line data    Source code
       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           0 : void ff_dv_print_profiles(void *logctx, int loglevel)
     247             : {
     248             :     int i;
     249           0 :     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
     250           0 :         const AVDVProfile *p = &dv_profiles[i];
     251           0 :         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           0 : }
     257             : 
     258             : #endif /* CONFIG_DVPROFILE */
     259             : 
     260        1265 : 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        1265 :     if(buf_size < DV_PROFILE_BYTES)
     267           0 :         return NULL;
     268             : 
     269        1265 :     dsf   = (frame[3] & 0x80) >> 7;
     270        1265 :     stype = frame[80 * 5 + 48 + 3] & 0x1f;
     271             : 
     272             :     /* 576i50 25Mbps 4:1:1 is a special case */
     273        1265 :     if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) ||
     274           0 :         (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576))
     275         335 :         return &dv_profiles[2];
     276             : 
     277         930 :     if(   stype == 0
     278         567 :        && codec
     279         273 :        && (codec->codec_tag==AV_RL32("dvsd") || codec->codec_tag==AV_RL32("CDVC"))
     280           0 :        && codec->coded_width ==720
     281           0 :        && codec->coded_height==576)
     282           0 :         return &dv_profiles[1];
     283             : 
     284        2879 :     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
     285        2879 :         if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
     286         930 :             return &dv_profiles[i];
     287             : 
     288             :     /* check if old sys matches and assumes corrupted input */
     289           0 :     if (sys && buf_size == sys->frame_size)
     290           0 :         return sys;
     291             : 
     292             :     /* hack for trac issue #217, dv files created with QuickTime 3 */
     293           0 :     if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
     294           0 :         return &dv_profiles[dsf];
     295             : #endif
     296             : 
     297           0 :     return NULL;
     298             : }
     299             : 
     300         657 : const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
     301             :                                        const uint8_t *frame, unsigned buf_size)
     302             : {
     303         657 :     return ff_dv_frame_profile(NULL, sys, frame, buf_size);
     304             : }
     305             : 
     306           0 : const AVDVProfile *av_dv_codec_profile(int width, int height,
     307             :                                        enum AVPixelFormat pix_fmt)
     308             : {
     309             : #if CONFIG_DVPROFILE
     310           0 :     return av_dv_codec_profile2(width, height, pix_fmt, (AVRational){0, 0});
     311             : #endif
     312             : 
     313             :     return NULL;
     314             : }
     315             : 
     316          26 : const AVDVProfile *av_dv_codec_profile2(int width, int height,
     317             :                                        enum AVPixelFormat pix_fmt,
     318             :                                        AVRational frame_rate)
     319             : {
     320          26 :     const AVDVProfile *p = NULL;
     321             : #if CONFIG_DVPROFILE
     322             :     int i;
     323             :     /* frame rate is necessary to select between 720p50 and 720p60 profiles */
     324          26 :     int invalid_framerate = frame_rate.num == 0 || frame_rate.den == 0;
     325             : 
     326          77 :     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
     327         123 :         if (height  == dv_profiles[i].height  &&
     328          72 :             pix_fmt == dv_profiles[i].pix_fmt &&
     329          26 :             width   == dv_profiles[i].width)
     330             :         {
     331          26 :             if( invalid_framerate || av_div_q(dv_profiles[i].time_base, frame_rate).num == 1 )
     332          26 :                 return &dv_profiles[i];
     333             : 
     334           0 :             if(!p)
     335           0 :                 p = &dv_profiles[i];
     336             :         }
     337             : #endif
     338             : 
     339           0 :     return p;
     340             : }
     341             : 

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