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cbs_h265: add raw filler encoding

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Dave Airlie 2023-06-26 08:36:32 +10:00 committed by Lynne
parent 12f158ca8f
commit b4283f93e1
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GPG Key ID: A2FEA5F03F034464
3 changed files with 52 additions and 0 deletions
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17
libavcodec/cbs_h2645.c
View File

@ -1055,6 +1055,14 @@ static int cbs_h265_read_nal_unit(CodedBitstreamContext *ctx,
}
break;
case HEVC_NAL_FD_NUT:
{
err = cbs_h265_read_filler(ctx, &gbc, unit->content);
if (err < 0)
return err;
}
break;
case HEVC_NAL_SEI_PREFIX:
case HEVC_NAL_SEI_SUFFIX:
{
@ -1497,6 +1505,14 @@ static int cbs_h265_write_nal_unit(CodedBitstreamContext *ctx,
}
break;
case HEVC_NAL_FD_NUT:
{
err = cbs_h265_write_filler(ctx, pbc, unit->content);
if (err < 0)
return err;
}
break;
case HEVC_NAL_SEI_PREFIX:
case HEVC_NAL_SEI_SUFFIX:
{
@ -2006,6 +2022,7 @@ static const CodedBitstreamUnitTypeDescriptor cbs_h265_unit_types[] = {
CBS_UNIT_TYPE_INTERNAL_REF(HEVC_NAL_PPS, H265RawPPS, extension_data.data),
CBS_UNIT_TYPE_POD(HEVC_NAL_AUD, H265RawAUD),
CBS_UNIT_TYPE_POD(HEVC_NAL_FD_NUT, H265RawFiller),
// Slices of non-IRAP pictures.
CBS_UNIT_RANGE_INTERNAL_REF(HEVC_NAL_TRAIL_N, HEVC_NAL_RASL_R,

6
libavcodec/cbs_h265.h
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@ -741,6 +741,12 @@ typedef struct H265RawSEI {
SEIRawMessageList message_list;
} H265RawSEI;
typedef struct H265RawFiller {
H265RawNALUnitHeader nal_unit_header;
uint32_t filler_size;
} H265RawFiller;
typedef struct CodedBitstreamH265Context {
// Reader/writer context in common with the H.264 implementation.
CodedBitstreamH2645Context common;

29
libavcodec/cbs_h265_syntax_template.c
View File

@ -2364,3 +2364,32 @@ static int FUNC(sei)(CodedBitstreamContext *ctx, RWContext *rw,
return 0;
}
static int FUNC(filler)(CodedBitstreamContext *ctx, RWContext *rw,
H265RawFiller *current)
{
int err;
HEADER("Filler Data");
CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
HEVC_NAL_FD_NUT));
#ifdef READ
while (show_bits(rw, 8) == 0xff) {
fixed(8, ff_byte, 0xff);
++current->filler_size;
}
#else
{
uint32_t i;
for (i = 0; i < current->filler_size; i++)
fixed(8, ff_byte, 0xff);
}
#endif
CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
return 0;
}