mirror of
https://github.com/ossrs/srs.git
synced 2025-03-09 15:49:59 +00:00
341 lines
13 KiB
C
341 lines
13 KiB
C
/*
|
|
* 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;
|
|
}
|
|
|