/* * Constants for DV codec * Copyright (c) 2002 Fabrice Bellard * * 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 */ /** * @file * Constants for DV codec. */ #include "libavutil/rational.h" #include "avcodec.h" #include "dvdata.h" static DVwork_chunk work_chunks_dv25pal [1*12*27]; static DVwork_chunk work_chunks_dv25pal411[1*12*27]; static DVwork_chunk work_chunks_dv25ntsc [1*10*27]; static DVwork_chunk work_chunks_dv50pal [2*12*27]; static DVwork_chunk work_chunks_dv50ntsc [2*10*27]; static DVwork_chunk work_chunks_dv100palp [2*12*27]; static DVwork_chunk work_chunks_dv100ntscp[2*10*27]; static DVwork_chunk work_chunks_dv100pali [4*12*27]; static DVwork_chunk work_chunks_dv100ntsci[4*10*27]; static uint32_t dv_idct_factor_sd [2*2*22*64]; static uint32_t dv_idct_factor_hd1080[2*4*16*64]; static uint32_t dv_idct_factor_hd720 [2*4*16*64]; static const DVprofile 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}}, .work_chunks = &work_chunks_dv25ntsc[0], .idct_factor = &dv_idct_factor_sd[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv25pal[0], .idct_factor = &dv_idct_factor_sd[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv25pal411[0], .idct_factor = &dv_idct_factor_sd[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv50ntsc[0], .idct_factor = &dv_idct_factor_sd[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv50pal[0], .idct_factor = &dv_idct_factor_sd[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv100ntsci[0], .idct_factor = &dv_idct_factor_hd1080[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv100pali[0], .idct_factor = &dv_idct_factor_hd1080[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv100ntscp[0], .idct_factor = &dv_idct_factor_hd720[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv100palp[0], .idct_factor = &dv_idct_factor_hd720[0], .pix_fmt = 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}}, .work_chunks = &work_chunks_dv25pal[0], .idct_factor = &dv_idct_factor_sd[0], .pix_fmt = 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, } }; const DVprofile* ff_dv_frame_profile(const DVprofile *sys, const uint8_t* frame, unsigned buf_size) { int i; int dsf = (frame[3] & 0x80) >> 7; int 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 */) { return &dv_profiles[2]; } 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; return NULL; } const DVprofile* ff_dv_codec_profile(AVCodecContext* codec) { int i; for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++) if (codec->height == dv_profiles[i].height && codec->pix_fmt == dv_profiles[i].pix_fmt && codec->width == dv_profiles[i].width) return &dv_profiles[i]; return NULL; }