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avcodec/libdav1d: export Dynamic HDR10+ frame metadata

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As defined in https://aomediacodec.github.io/av1-hdr10plus/

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2023-03-03 13:19:02 -03:00
parent cc76e8340d
commit b465e6fed0
1 changed files with 32 additions and 4 deletions
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36
libavcodec/libdav1d.c
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@ -33,6 +33,7 @@
#include "bytestream.h"
#include "codec_internal.h"
#include "decode.h"
#include "dynamic_hdr10_plus.h"
#include "internal.h"
#define FF_DAV1D_VERSION_AT_LEAST(x,y) \
@ -511,12 +512,14 @@ FF_ENABLE_DEPRECATION_WARNINGS
}
if (p->itut_t35) {
GetByteContext gb;
unsigned int user_identifier;
int provider_code;
bytestream2_init(&gb, p->itut_t35->payload, p->itut_t35->payload_size);
bytestream2_skip(&gb, 1); // terminal provider code
bytestream2_skip(&gb, 1); // terminal provider oriented code
user_identifier = bytestream2_get_be32(&gb);
provider_code = bytestream2_get_be16(&gb);
switch (provider_code) {
case 0x31: { // atsc_provider_code
uint32_t user_identifier = bytestream2_get_be32(&gb);
switch (user_identifier) {
case MKBETAG('G', 'A', '9', '4'): { // closed captions
AVBufferRef *buf = NULL;
@ -536,6 +539,31 @@ FF_ENABLE_DEPRECATION_WARNINGS
default: // ignore unsupported identifiers
break;
}
}
case 0x3C: { // smpte_provider_code
AVDynamicHDRPlus *hdrplus;
int provider_oriented_code = bytestream2_get_be16(&gb);
int application_identifier = bytestream2_get_byte(&gb);
if (p->itut_t35->country_code != 0xB5 ||
provider_oriented_code != 1 || application_identifier != 4)
break;
hdrplus = av_dynamic_hdr_plus_create_side_data(frame);
if (!hdrplus) {
res = AVERROR(ENOMEM);
goto fail;
}
res = ff_parse_itu_t_t35_to_dynamic_hdr10_plus(hdrplus, gb.buffer,
bytestream2_get_bytes_left(&gb));
if (res < 0)
goto fail;
break;
}
default: // ignore unsupported provider codes
break;
}
}
if (p->frame_hdr->film_grain.present && (!dav1d->apply_grain ||
(c->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN))) {