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lavf/mov: support dvcC/dvvC box for DOVI 

support dvcC/dvcC box from spec Dolby Vision Streams Within the
ISO Base MediaFile Format Version 2.1.2
(https://www.dolby.com/in/en/technologies/dolby-vision/dolby-vision\
-bitstreams-within-the-iso-base-media-file-format-v2.1.2.pdf)

export the DOVI information to sidedata.

Signed-off-by: vacingfang <vacingfang@tencent.com>
This commit is contained in:
vacingfang 2020-04-11 21:00:50 +08:00 committed by Jun Zhao
parent 22b05ccb38
commit 1483cfa817
1 changed files with 60 additions and 0 deletions
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60
libavformat/mov.c
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@ -46,6 +46,7 @@
#include "libavutil/spherical.h"
#include "libavutil/stereo3d.h"
#include "libavutil/timecode.h"
#include "libavutil/dovi_meta.h"
#include "libavcodec/ac3tab.h"
#include "libavcodec/flac.h"
#include "libavcodec/mpegaudiodecheader.h"
@ -6786,6 +6787,63 @@ static int mov_read_dmlp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
}
static int mov_read_dvcc_dvvc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
uint32_t buf;
AVDOVIDecoderConfigurationRecord *dovi;
size_t dovi_size;
int ret;
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
if ((uint64_t)atom.size > (1<<30) || atom.size < 4)
return AVERROR_INVALIDDATA;
dovi = av_dovi_alloc(&dovi_size);
if (!dovi)
return AVERROR(ENOMEM);
dovi->dv_version_major = avio_r8(pb);
dovi->dv_version_minor = avio_r8(pb);
buf = avio_rb16(pb);
dovi->dv_profile = (buf >> 9) & 0x7f; // 7 bits
dovi->dv_level = (buf >> 3) & 0x3f; // 6 bits
dovi->rpu_present_flag = (buf >> 2) & 0x01; // 1 bit
dovi->el_present_flag = (buf >> 1) & 0x01; // 1 bit
dovi->bl_present_flag = buf & 0x01; // 1 bit
if (atom.size >= 24) { // 4 + 4 + 4 * 4
buf = avio_r8(pb);
dovi->dv_bl_signal_compatibility_id = (buf >> 4) & 0x0f; // 4 bits
} else {
// 0 stands for None
// Dolby Vision V1.2.93 profiles and levels
dovi->dv_bl_signal_compatibility_id = 0;
}
ret = av_stream_add_side_data(st, AV_PKT_DATA_DOVI_CONF,
(uint8_t *)dovi, dovi_size);
if (ret < 0) {
av_freep(dovi);
return ret;
}
av_log(c, AV_LOG_TRACE, "DOVI in dvcC/dvvC box, version: %d.%d, profile: %d, level: %d, "
"rpu flag: %d, el flag: %d, bl flag: %d, compatibility id: %d\n",
dovi->dv_version_major, dovi->dv_version_minor,
dovi->dv_profile, dovi->dv_level,
dovi->rpu_present_flag,
dovi->el_present_flag,
dovi->bl_present_flag,
dovi->dv_bl_signal_compatibility_id
);
return 0;
}
static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('A','C','L','R'), mov_read_aclr },
{ MKTAG('A','P','R','G'), mov_read_avid },
@ -6881,6 +6939,8 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('v','p','c','C'), mov_read_vpcc },
{ MKTAG('m','d','c','v'), mov_read_mdcv },
{ MKTAG('c','l','l','i'), mov_read_clli },
{ MKTAG('d','v','c','C'), mov_read_dvcc_dvvc },
{ MKTAG('d','v','v','C'), mov_read_dvcc_dvvc },
{ 0, NULL }
};