mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-12 19:18:44 +02:00
286 lines
9.7 KiB
C
286 lines
9.7 KiB
C
/*
|
|
* Constants for DV codec
|
|
* Copyright (c) 2002 Fabrice Bellard
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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* avpriv_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* avpriv_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;
|
|
}
|
|
|