Parse all the constraint flags.
It can be passed to hw decoders to detemine the exact profile for Range
Extension HEVC.
Signed-off-by: Linjie Fu <linjie...@intel.com>
---
libavcodec/hevc_ps.c | 18 +++++++++++++++---
libavcodec/hevc_ps.h | 10 ++++++++++
2 files changed, 25 insertions(+), 3 deletions(-)
diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
index 80df417e4f..1365a9d640 100644
--- a/libavcodec/hevc_ps.c
+++ b/libavcodec/hevc_ps.c
@@ -295,9 +295,21 @@ static int decode_profile_tier_level(GetBitContext *gb,
AVCodecContext *avctx,
ptl->non_packed_constraint_flag = get_bits1(gb);
ptl->frame_only_constraint_flag = get_bits1(gb);
- skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
- skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
- skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
+ ptl->max_12bit_constraint_flag = get_bits1(gb);
+ ptl->max_10bit_constraint_flag = get_bits1(gb);
+ ptl->max_8bit_constraint_flag = get_bits1(gb);
+ ptl->max_422chroma_constraint_flag = get_bits1(gb);
+ ptl->max_420chroma_constraint_flag = get_bits1(gb);
+ ptl->max_monochrome_constraint_flag = get_bits1(gb);
+ ptl->intra_constraint_flag = get_bits1(gb);
+ ptl->one_picture_only_constraint_flag = get_bits1(gb);
+ ptl->lower_bit_rate_constraint_flag = get_bits1(gb);
+
+ skip_bits(gb, 16); // XXX_reserved_zero_34bits[0..15]
+ skip_bits(gb, 16); // XXX_reserved_zero_34bits[16..31]
+ skip_bits(gb, 2); // XXX_reserved_zero_34bits[32..33]
+
+ ptl->inbld_flag = get_bits1(gb);
return 0;
}
diff --git a/libavcodec/hevc_ps.h b/libavcodec/hevc_ps.h
index bbaa9205ef..1c95a1848b 100644
--- a/libavcodec/hevc_ps.h
+++ b/libavcodec/hevc_ps.h
@@ -182,6 +182,16 @@ typedef struct PTLCommon {
uint8_t interlaced_source_flag;
uint8_t non_packed_constraint_flag;
uint8_t frame_only_constraint_flag;
+ uint8_t max_12bit_constraint_flag;
+ uint8_t max_10bit_constraint_flag;
+ uint8_t max_8bit_constraint_flag;
+ uint8_t max_422chroma_constraint_flag;
+ uint8_t max_420chroma_constraint_flag;
+ uint8_t max_monochrome_constraint_flag;
+ uint8_t intra_constraint_flag;
+ uint8_t one_picture_only_constraint_flag;
+ uint8_t lower_bit_rate_constraint_flag;
+ uint8_t inbld_flag;
} PTLCommon;
typedef struct PTL {
--
2.17.1
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