| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "config.h" |
| |
| #include <stdint.h> |
| |
| #include "libavutil/common.h" |
| #include "libavutil/intreadwrite.h" |
| #include "libavutil/log.h" |
| #include "libavutil/pixdesc.h" |
| |
| #include "avcodec.h" |
| #include "dv_profile.h" |
| #include "dv_profile_internal.h" |
| |
| #if CONFIG_DVPROFILE |
| |
| static const uint8_t dv_audio_shuffle525[10][9] = { |
| { 0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */ |
| { 6, 36, 66, 26, 56, 86, 16, 46, 76 }, |
| { 12, 42, 72, 2, 32, 62, 22, 52, 82 }, |
| { 18, 48, 78, 8, 38, 68, 28, 58, 88 }, |
| { 24, 54, 84, 14, 44, 74, 4, 34, 64 }, |
| |
| { 1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */ |
| { 7, 37, 67, 27, 57, 87, 17, 47, 77 }, |
| { 13, 43, 73, 3, 33, 63, 23, 53, 83 }, |
| { 19, 49, 79, 9, 39, 69, 29, 59, 89 }, |
| { 25, 55, 85, 15, 45, 75, 5, 35, 65 }, |
| }; |
| |
| static const uint8_t dv_audio_shuffle625[12][9] = { |
| { 0, 36, 72, 26, 62, 98, 16, 52, 88 }, /* 1st channel */ |
| { 6, 42, 78, 32, 68, 104, 22, 58, 94 }, |
| { 12, 48, 84, 2, 38, 74, 28, 64, 100 }, |
| { 18, 54, 90, 8, 44, 80, 34, 70, 106 }, |
| { 24, 60, 96, 14, 50, 86, 4, 40, 76 }, |
| { 30, 66, 102, 20, 56, 92, 10, 46, 82 }, |
| |
| { 1, 37, 73, 27, 63, 99, 17, 53, 89 }, /* 2nd channel */ |
| { 7, 43, 79, 33, 69, 105, 23, 59, 95 }, |
| { 13, 49, 85, 3, 39, 75, 29, 65, 101 }, |
| { 19, 55, 91, 9, 45, 81, 35, 71, 107 }, |
| { 25, 61, 97, 15, 51, 87, 5, 41, 77 }, |
| { 31, 67, 103, 21, 57, 93, 11, 47, 83 }, |
| }; |
| |
| /* macroblock bit budgets */ |
| static const uint8_t block_sizes_dv2550[8] = { |
| 112, 112, 112, 112, 80, 80, 0, 0, |
| }; |
| |
| static const uint8_t block_sizes_dv100[8] = { |
| 80, 80, 80, 80, 80, 80, 64, 64, |
| }; |
| |
| static const AVDVProfile dv_profiles[] = { |
| { .dsf = 0, |
| .video_stype = 0x0, |
| .frame_size = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */ |
| .difseg_size = 10, |
| .n_difchan = 1, |
| .time_base = { 1001, 30000 }, |
| .ltc_divisor = 30, |
| .height = 480, |
| .width = 720, |
| .sar = { { 8, 9 }, { 32, 27 } }, |
| .pix_fmt = AV_PIX_FMT_YUV411P, |
| .bpm = 6, |
| .block_sizes = block_sizes_dv2550, |
| .audio_stride = 90, |
| .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */ |
| .audio_shuffle = dv_audio_shuffle525, }, |
| { .dsf = 1, |
| .video_stype = 0x0, |
| .frame_size = 144000, /* IEC 61834 - 625/50 (PAL) */ |
| .difseg_size = 12, |
| .n_difchan = 1, |
| .time_base = { 1, 25 }, |
| .ltc_divisor = 25, |
| .height = 576, |
| .width = 720, |
| .sar = { { 16, 15 }, { 64, 45 } }, |
| .pix_fmt = AV_PIX_FMT_YUV420P, |
| .bpm = 6, |
| .block_sizes = block_sizes_dv2550, |
| .audio_stride = 108, |
| .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
| .audio_shuffle = dv_audio_shuffle625, }, |
| { .dsf = 1, |
| .video_stype = 0x0, |
| .frame_size = 144000, /* SMPTE-314M - 625/50 (PAL) */ |
| .difseg_size = 12, |
| .n_difchan = 1, |
| .time_base = { 1, 25 }, |
| .ltc_divisor = 25, |
| .height = 576, |
| .width = 720, |
| .sar = { { 16, 15 }, { 64, 45 } }, |
| .pix_fmt = AV_PIX_FMT_YUV411P, |
| .bpm = 6, |
| .block_sizes = block_sizes_dv2550, |
| .audio_stride = 108, |
| .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
| .audio_shuffle = dv_audio_shuffle625, }, |
| { .dsf = 0, |
| .video_stype = 0x4, |
| .frame_size = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */ |
| .difseg_size = 10, /* also known as "DVCPRO50" */ |
| .n_difchan = 2, |
| .time_base = { 1001, 30000 }, |
| .ltc_divisor = 30, |
| .height = 480, |
| .width = 720, |
| .sar = { { 8, 9 }, { 32, 27 } }, |
| .pix_fmt = AV_PIX_FMT_YUV422P, |
| .bpm = 6, |
| .block_sizes = block_sizes_dv2550, |
| .audio_stride = 90, |
| .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */ |
| .audio_shuffle = dv_audio_shuffle525, }, |
| { .dsf = 1, |
| .video_stype = 0x4, |
| .frame_size = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */ |
| .difseg_size = 12, /* also known as "DVCPRO50" */ |
| .n_difchan = 2, |
| .time_base = { 1, 25 }, |
| .ltc_divisor = 25, |
| .height = 576, |
| .width = 720, |
| .sar = { { 16, 15 }, { 64, 45 } }, |
| .pix_fmt = AV_PIX_FMT_YUV422P, |
| .bpm = 6, |
| .block_sizes = block_sizes_dv2550, |
| .audio_stride = 108, |
| .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
| .audio_shuffle = dv_audio_shuffle625, }, |
| { .dsf = 0, |
| .video_stype = 0x14, |
| .frame_size = 480000, /* SMPTE-370M - 1080i60 100 Mbps */ |
| .difseg_size = 10, /* also known as "DVCPRO HD" */ |
| .n_difchan = 4, |
| .time_base = { 1001, 30000 }, |
| .ltc_divisor = 30, |
| .height = 1080, |
| .width = 1280, |
| .sar = { { 1, 1 }, { 3, 2 } }, |
| .pix_fmt = AV_PIX_FMT_YUV422P, |
| .bpm = 8, |
| .block_sizes = block_sizes_dv100, |
| .audio_stride = 90, |
| .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */ |
| .audio_shuffle = dv_audio_shuffle525, }, |
| { .dsf = 1, |
| .video_stype = 0x14, |
| .frame_size = 576000, /* SMPTE-370M - 1080i50 100 Mbps */ |
| .difseg_size = 12, /* also known as "DVCPRO HD" */ |
| .n_difchan = 4, |
| .time_base = { 1, 25 }, |
| .ltc_divisor = 25, |
| .height = 1080, |
| .width = 1440, |
| .sar = { { 1, 1 }, { 4, 3 } }, |
| .pix_fmt = AV_PIX_FMT_YUV422P, |
| .bpm = 8, |
| .block_sizes = block_sizes_dv100, |
| .audio_stride = 108, |
| .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
| .audio_shuffle = dv_audio_shuffle625, }, |
| { .dsf = 0, |
| .video_stype = 0x18, |
| .frame_size = 240000, /* SMPTE-370M - 720p60 100 Mbps */ |
| .difseg_size = 10, /* also known as "DVCPRO HD" */ |
| .n_difchan = 2, |
| .time_base = { 1001, 60000 }, |
| .ltc_divisor = 60, |
| .height = 720, |
| .width = 960, |
| .sar = { { 1, 1 }, { 4, 3 } }, |
| .pix_fmt = AV_PIX_FMT_YUV422P, |
| .bpm = 8, |
| .block_sizes = block_sizes_dv100, |
| .audio_stride = 90, |
| .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */ |
| .audio_shuffle = dv_audio_shuffle525, }, |
| { .dsf = 1, |
| .video_stype = 0x18, |
| .frame_size = 288000, /* SMPTE-370M - 720p50 100 Mbps */ |
| .difseg_size = 12, /* also known as "DVCPRO HD" */ |
| .n_difchan = 2, |
| .time_base = { 1, 50 }, |
| .ltc_divisor = 50, |
| .height = 720, |
| .width = 960, |
| .sar = { { 1, 1 }, { 4, 3 } }, |
| .pix_fmt = AV_PIX_FMT_YUV422P, |
| .bpm = 8, |
| .block_sizes = block_sizes_dv100, |
| .audio_stride = 90, |
| .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
| .audio_shuffle = dv_audio_shuffle625, }, |
| { .dsf = 1, |
| .video_stype = 0x1, |
| .frame_size = 144000, /* IEC 61883-5 - 625/50 (PAL) */ |
| .difseg_size = 12, |
| .n_difchan = 1, |
| .time_base = { 1, 25 }, |
| .ltc_divisor = 25, |
| .height = 576, |
| .width = 720, |
| .sar = { { 16, 15 }, { 64, 45 } }, |
| .pix_fmt = AV_PIX_FMT_YUV420P, |
| .bpm = 6, |
| .block_sizes = block_sizes_dv2550, |
| .audio_stride = 108, |
| .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
| .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
| .audio_shuffle = dv_audio_shuffle625, } |
| }; |
| |
| void ff_dv_print_profiles(void *logctx, int loglevel) |
| { |
| int i; |
| for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) { |
| const AVDVProfile *p = &dv_profiles[i]; |
| av_log(logctx, loglevel, |
| "Frame size: %dx%d; pixel format: %s, framerate: %d/%d\n", |
| p->width, p->height, av_get_pix_fmt_name(p->pix_fmt), |
| p->time_base.den, p->time_base.num); |
| } |
| } |
| |
| #endif /* CONFIG_DVPROFILE */ |
| |
| const AVDVProfile* ff_dv_frame_profile(AVCodecContext* codec, const AVDVProfile *sys, |
| const uint8_t *frame, unsigned buf_size) |
| { |
| #if CONFIG_DVPROFILE |
| int i, dsf, stype; |
| |
| if(buf_size < DV_PROFILE_BYTES) |
| return NULL; |
| |
| dsf = (frame[3] & 0x80) >> 7; |
| stype = frame[80 * 5 + 48 + 3] & 0x1f; |
| |
| /* 576i50 25Mbps 4:1:1 is a special case */ |
| if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) || |
| (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576)) |
| return &dv_profiles[2]; |
| |
| if( stype == 0 |
| && codec |
| && (codec->codec_tag==AV_RL32("dvsd") || codec->codec_tag==AV_RL32("CDVC")) |
| && codec->coded_width ==720 |
| && codec->coded_height==576) |
| return &dv_profiles[1]; |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) |
| if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype) |
| return &dv_profiles[i]; |
| |
| /* check if old sys matches and assumes corrupted input */ |
| if (sys && buf_size == sys->frame_size) |
| return sys; |
| |
| /* hack for trac issue #217, dv files created with QuickTime 3 */ |
| if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff) |
| return &dv_profiles[dsf]; |
| #endif |
| |
| return NULL; |
| } |
| |
| const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys, |
| const uint8_t *frame, unsigned buf_size) |
| { |
| return ff_dv_frame_profile(NULL, sys, frame, buf_size); |
| } |
| |
| const AVDVProfile *av_dv_codec_profile(int width, int height, |
| enum AVPixelFormat pix_fmt) |
| { |
| #if CONFIG_DVPROFILE |
| return av_dv_codec_profile2(width, height, pix_fmt, (AVRational){0, 0}); |
| #endif |
| |
| return NULL; |
| } |
| |
| const AVDVProfile *av_dv_codec_profile2(int width, int height, |
| enum AVPixelFormat pix_fmt, |
| AVRational frame_rate) |
| { |
| const AVDVProfile *p = NULL; |
| #if CONFIG_DVPROFILE |
| int i; |
| /* frame rate is necessary to select between 720p50 and 720p60 profiles */ |
| int invalid_framerate = frame_rate.num == 0 || frame_rate.den == 0; |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) |
| if (height == dv_profiles[i].height && |
| pix_fmt == dv_profiles[i].pix_fmt && |
| width == dv_profiles[i].width) |
| { |
| if( invalid_framerate || av_div_q(dv_profiles[i].time_base, frame_rate).num == 1 ) |
| return &dv_profiles[i]; |
| |
| if(!p) |
| p = &dv_profiles[i]; |
| } |
| #endif |
| |
| return p; |
| } |
| |
