[FFmpeg-cvslog] avformat/av1: combine high_bitdepth and twelve_bit into a single bitdepth value
James Almer
git at videolan.org
Mon Aug 5 21:06:10 EEST 2019
ffmpeg | branch: release/4.2 | James Almer <jamrial at gmail.com> | Tue Jul 30 11:55:26 2019 -0300| [5152602ba8f49ceb58aa89fcad8e6aaa9a6a27ff] | committer: James Almer
avformat/av1: combine high_bitdepth and twelve_bit into a single bitdepth value
Signed-off-by: James Almer <jamrial at gmail.com>
(cherry picked from commit 9a44ec94100a647df6920c65cccdd605a2e6865b)
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5152602ba8f49ceb58aa89fcad8e6aaa9a6a27ff
---
libavformat/av1.c | 15 +++++++++------
libavformat/av1.h | 3 +--
2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/libavformat/av1.c b/libavformat/av1.c
index 43e40453c8..b36c5e44ba 100644
--- a/libavformat/av1.c
+++ b/libavformat/av1.c
@@ -94,9 +94,12 @@ static inline void uvlc(GetBitContext *gb)
static int parse_color_config(AV1SequenceParameters *seq_params, GetBitContext *gb)
{
- seq_params->high_bitdepth = get_bits1(gb);
- if (seq_params->profile == FF_PROFILE_AV1_PROFESSIONAL && seq_params->high_bitdepth)
- seq_params->twelve_bit = get_bits1(gb);
+ int twelve_bit = 0;
+ int high_bitdepth = get_bits1(gb);
+ if (seq_params->profile == FF_PROFILE_AV1_PROFESSIONAL && high_bitdepth)
+ twelve_bit = get_bits1(gb);
+
+ seq_params->bitdepth = 8 + (high_bitdepth * 2) + (twelve_bit * 2);
if (seq_params->profile == FF_PROFILE_AV1_HIGH)
seq_params->monochrome = 0;
@@ -135,7 +138,7 @@ static int parse_color_config(AV1SequenceParameters *seq_params, GetBitContext *
seq_params->chroma_subsampling_x = 0;
seq_params->chroma_subsampling_y = 0;
} else {
- if (seq_params->twelve_bit) {
+ if (twelve_bit) {
seq_params->chroma_subsampling_x = get_bits1(gb);
if (seq_params->chroma_subsampling_x)
seq_params->chroma_subsampling_y = get_bits1(gb);
@@ -383,8 +386,8 @@ int ff_isom_write_av1c(AVIOContext *pb, const uint8_t *buf, int size)
put_bits(&pbc, 3, seq_params.profile);
put_bits(&pbc, 5, seq_params.level);
put_bits(&pbc, 1, seq_params.tier);
- put_bits(&pbc, 1, seq_params.high_bitdepth);
- put_bits(&pbc, 1, seq_params.twelve_bit);
+ put_bits(&pbc, 1, seq_params.bitdepth > 8);
+ put_bits(&pbc, 1, seq_params.bitdepth == 12);
put_bits(&pbc, 1, seq_params.monochrome);
put_bits(&pbc, 1, seq_params.chroma_subsampling_x);
put_bits(&pbc, 1, seq_params.chroma_subsampling_y);
diff --git a/libavformat/av1.h b/libavformat/av1.h
index 308bff4818..441b6c9898 100644
--- a/libavformat/av1.h
+++ b/libavformat/av1.h
@@ -29,8 +29,7 @@ typedef struct AV1SequenceParameters {
uint8_t profile;
uint8_t level;
uint8_t tier;
- uint8_t high_bitdepth;
- uint8_t twelve_bit;
+ uint8_t bitdepth;
uint8_t monochrome;
uint8_t chroma_subsampling_x;
uint8_t chroma_subsampling_y;
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