apps/ffmpeg-rockchip
1
0
Fork 0
mirror of https://github.com/nyanmisaka/ffmpeg-rockchip.git synced 2026-04-25 08:56:59 +08:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/cbs_{h2645,sei}: add support for Ambient Viewing Environment SEI

Browse Source 
Defined by H.274, this SEI message is utilized by iPhones to save
the nominal ambient viewing environment for the display of recorded
HDR content.
This commit is contained in:
Jan Ekström
2023-01-09 22:49:49 +02:00
parent d3538dd293
commit f4bebc0c34
3 changed files with 29 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libavcodec/cbs_sei_syntax_template.c
+17
View File
@@ -144,6 +144,23 @@ static int FUNC(alternative_transfer_characteristics)
return 0;
}
static int FUNC(ambient_viewing_environment)
(CodedBitstreamContext *ctx, RWContext *rw,
SEIRawAmbientViewingEnvironment *current,
SEIMessageState *state)
{
static const uint16_t max_ambient_light_value = 50000;
int err;
HEADER("Ambient Viewing Environment");
u(32, ambient_illuminance, 1, MAX_UINT_BITS(32));
u(16, ambient_light_x, 0, max_ambient_light_value);
u(16, ambient_light_y, 0, max_ambient_light_value);
return 0;
}
static int FUNC(message)(CodedBitstreamContext *ctx, RWContext *rw,
SEIRawMessage *current)
{