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