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h265parser: parse range extension message in SPS/PPS.

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Range extension message may exist in some extension-profile clips.
This commit is contained in:
Wangfei 2019-04-26 09:52:43 +08:00
parent f53beb876c
commit 3a0a82a783
2 changed files with 161 additions and 1 deletions
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69
gst-libs/gst/codecparsers/gsth265parser.c
View file

@ -1775,6 +1775,31 @@ gst_h265_parse_sps (GstH265Parser * parser, GstH265NalUnit * nalu,
READ_UINT8 (&nr, sps->sps_extension_flag, 1);
if (sps->sps_extension_flag) {
READ_UINT8 (&nr, sps->sps_range_extension_flag, 1);
READ_UINT8 (&nr, sps->sps_multilayer_extension_flag, 1);
READ_UINT8 (&nr, sps->sps_3d_extension_flag, 1);
READ_UINT8 (&nr, sps->sps_extension_5bits, 5);
}
if (sps->sps_range_extension_flag) {
READ_UINT8 (&nr,
sps->sps_extnsion_params.transform_skip_rotation_enabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extnsion_params.transform_skip_context_enabled_flag, 1);
READ_UINT8 (&nr, sps->sps_extnsion_params.implicit_rdpcm_enabled_flag, 1);
READ_UINT8 (&nr, sps->sps_extnsion_params.explicit_rdpcm_enabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extnsion_params.extended_precision_processing_flag, 1);
READ_UINT8 (&nr, sps->sps_extnsion_params.intra_smoothing_disabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extnsion_params.high_precision_offsets_enabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extnsion_params.persistent_rice_adaptation_enabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extnsion_params.cabac_bypass_alignment_enabled_flag, 1);
}
/* calculate ChromaArrayType */
if (!sps->separate_colour_plane_flag)
sps->chroma_array_type = sps->chroma_format_idc;
@ -1847,7 +1872,7 @@ gst_h265_parse_pps (GstH265Parser * parser, GstH265NalUnit * nalu,
GstH265SPS *sps;
gint sps_id;
gint qp_bd_offset;
guint32 CtbSizeY, MinCbLog2SizeY, CtbLog2SizeY;
guint32 CtbSizeY, MinCbLog2SizeY, CtbLog2SizeY, MaxBitDepthY, MaxBitDepthC;
guint8 i;
INITIALIZE_DEBUG_CATEGORY;
@ -1977,6 +2002,45 @@ gst_h265_parse_pps (GstH265Parser * parser, GstH265NalUnit * nalu,
READ_UINT8 (&nr, pps->slice_segment_header_extension_present_flag, 1);
READ_UINT8 (&nr, pps->pps_extension_flag, 1);
if (pps->pps_extension_flag) {
READ_UINT8 (&nr, pps->pps_range_extension_flag, 1);
READ_UINT8 (&nr, pps->pps_multilayer_extension_flag, 1);
READ_UINT8 (&nr, pps->pps_3d_extension_flag, 1);
READ_UINT8 (&nr, pps->pps_extension_5bits, 5);
}
if (pps->pps_range_extension_flag) {
READ_UE (&nr,
pps->pps_extension_params.log2_max_transform_skip_block_size_minus2);
READ_UINT8 (&nr,
pps->pps_extension_params.cross_component_prediction_enabled_flag, 1);
READ_UINT8 (&nr,
pps->pps_extension_params.chroma_qp_offset_list_enabled_flag, 1);
if (pps->pps_extension_params.chroma_qp_offset_list_enabled_flag) {
READ_UE_MAX (&nr,
pps->pps_extension_params.diff_cu_chroma_qp_offset_depth,
sps->log2_diff_max_min_luma_coding_block_size);
READ_UE_MAX (&nr,
pps->pps_extension_params.chroma_qp_offset_list_len_minus1, 5);
for (i = 0;
i <= pps->pps_extension_params.chroma_qp_offset_list_len_minus1;
i++) {
READ_SE_ALLOWED (&nr, pps->pps_extension_params.cb_qp_offset_list[i],
-12, 12);
READ_SE_ALLOWED (&nr, pps->pps_extension_params.cr_qp_offset_list[i],
-12, 12);
}
}
MaxBitDepthY =
sps->bit_depth_luma_minus8 > 2 ? sps->bit_depth_luma_minus8 - 2 : 0;
MaxBitDepthC =
sps->bit_depth_chroma_minus8 > 2 ? sps->bit_depth_chroma_minus8 - 2 : 0;
READ_UE_ALLOWED (&nr, pps->pps_extension_params.log2_sao_offset_scale_luma,
0, MaxBitDepthY);
READ_UE_ALLOWED (&nr,
pps->pps_extension_params.log2_sao_offset_scale_chroma, 0,
MaxBitDepthC);
}
pps->valid = TRUE;
return GST_H265_PARSER_OK;
@ -2241,6 +2305,9 @@ gst_h265_parser_parse_slice_hdr (GstH265Parser * parser,
READ_SE_ALLOWED (&nr, slice->cr_qp_offset, -12, 12);
}
if (pps->pps_extension_params.chroma_qp_offset_list_enabled_flag)
READ_UINT8 (&nr, slice->cu_chroma_qp_offset_enabled_flag, 1);
if (pps->deblocking_filter_override_enabled_flag)
READ_UINT8 (&nr, slice->deblocking_filter_override_flag, 1);
if (slice->deblocking_filter_override_flag) {

93
gst-libs/gst/codecparsers/gsth265parser.h
View file

@ -308,6 +308,8 @@ typedef struct _GstH265ProfileTierLevel GstH265ProfileTierLevel;
typedef struct _GstH265SubLayerHRDParams GstH265SubLayerHRDParams;
typedef struct _GstH265HRDParams GstH265HRDParams;
typedef struct _GstH265VUIParams GstH265VUIParams;
typedef struct _GstH265SPSExtensionParams GstH265SPSExtensionParams;
typedef struct _GstH265PPSExtensionParams GstH265PPSExtensionParams;
typedef struct _GstH265ScalingList GstH265ScalingList;
typedef struct _GstH265RefPicListModification GstH265RefPicListModification;
@ -755,6 +757,77 @@ struct _GstH265VUIParams
guint par_d;
};
/**
* GstH265SPSExtensionParams:
* @transform_skip_rotation_enabled_flag: %TRUE specifies that a rotation is applied to
* the residual data block from intra 4X4 blocks coded using a transform skip operation.
* @transform_skip_context_enabled_flag: %TRUE specifies tspecifies that a particular
* context is used for the parsing of the sig_coeff_flag for transform blocks with a skipped
* transform.
* @implicit_residual_dpcm_enabled_flag: %TRUE specifies that the residual modification process
* for blocks using a transform bypass may be used for intra blocks in the CVS
* @explicit_residual_dpcm_enabled_flag: %TRUE specifies that the residual modification process
* for blocks using a transform bypass may be used for inter blocks in the CVS
* @extended_precision_processing_flag: %TRUE specifies that an extended dynamic range is used
* for coefficient parsing and inverse transform processing
* @intra_smoothing_disabled_flag: %TRUE specifies that the filtering process of neighbouring
* samples is unconditionally disabled for intra prediction
* @high_precision_offsets_enabled_flag: %TRUE specifies that weighted prediction offset values
* are signalled using a bit-depth-dependent precision.
* @persistent_rice_adaptation_enabled_flag: %TRUE specifies that the Rice parameter derivation
* for the binarization of coeff_abs_level_remaining[] is initialized at the start of each
* sub-block using mode dependent statistics accumulated from previous sub-blocks.
* @cabac_bypass_alignment_enabled_flag: %TRUE specifies that a context-based adaptive binary
* arithmetic coding (CABAC) alignment process is used prior to bypass decoding of the syntax
* elements coeff_sign_flag[] and coeff_abs_level_remaining[]
*
* Defines the GstH265SPSExtensionParams
*/
struct _GstH265SPSExtensionParams {
guint8 transform_skip_rotation_enabled_flag;
guint8 transform_skip_context_enabled_flag;
guint8 implicit_rdpcm_enabled_flag;
guint8 explicit_rdpcm_enabled_flag;
guint8 extended_precision_processing_flag;
guint8 intra_smoothing_disabled_flag;
guint8 high_precision_offsets_enabled_flag;
guint8 persistent_rice_adaptation_enabled_flag;
guint8 cabac_bypass_alignment_enabled_flag;
};
/**
* GstH265PPSExtensionParams:
* @log2_max_transform_skip_block_size_minus2: plus 2 specifies the maximum transform block size for which
* transform_skip_flag may be present in coded pictures referring to the PPS.
* @cross_component_prediction_enabled_flag: equal to 1 specifies that log2_res_scale_abs_plus1 and
* res_scale_sign_flag may be present in the transform unit syntax for pictures referring to the PPS.
* @chroma_qp_offset_list_enabled_flag: equal to 1 specifies that the cu_chroma_qp_offset_flag may be
* present in the transform unit syntax.
* @diff_cu_chroma_qp_offset_depth: specifies the difference between the luma coding tree block size and
* the minimum luma coding block size of coding units that convey cu_chroma_qp_offset_flag.
* @chroma_qp_offset_list_len_minus1: plus 1 specifies the number of cb_qp_offset_list[] and
* cr_qp_offset_list[] syntax elements that are present in the PPS.
* @cb_qp_offset_list: specify offsets used in the derivation of qp cb.
* @cr_qp_offset_list: specify offsets used in the derivation of qp cr.
* @log2_sao_offset_scale_luma: the base 2 logarithm of the scaling parameter that is used to scale sample
* adaptive offset (SAO) offset values for luma samples.
* @log2_sao_offset_scale_chroma: the base 2 logarithm of the scaling parameter that is used to scale SAO
* offset values for chroma samples.
*
* Defines the GstH265SPSExtensionParams
*/
struct _GstH265PPSExtensionParams {
guint32 log2_max_transform_skip_block_size_minus2;
guint8 cross_component_prediction_enabled_flag;
guint8 chroma_qp_offset_list_enabled_flag;
guint8 diff_cu_chroma_qp_offset_depth;
guint8 chroma_qp_offset_list_len_minus1;
gint8 cb_qp_offset_list[6];
gint8 cr_qp_offset_list[6];
guint8 log2_sao_offset_scale_luma;
guint8 log2_sao_offset_scale_chroma;
};
/**
* GstH265ScalingList:
* @scaling_list_dc_coef_minus8_16x16: this plus 8 specifies the DC
@ -859,6 +932,15 @@ struct _GstH265SPS
guint8 sps_extension_flag;
/* if sps_extension_present_flag */
guint8 sps_range_extension_flag;
guint8 sps_multilayer_extension_flag;
guint8 sps_3d_extension_flag;
guint8 sps_extension_5bits;
/* if sps_range_extension_flag */
GstH265SPSExtensionParams sps_extnsion_params;
/* calculated values */
guint8 chroma_array_type;
gint width, height;
@ -926,6 +1008,15 @@ struct _GstH265PPS
guint8 pps_extension_flag;
/* if pps_extension_flag*/
guint8 pps_range_extension_flag;
guint8 pps_multilayer_extension_flag;
guint8 pps_3d_extension_flag;
guint8 pps_extension_5bits;
/* if pps_range_extension_flag*/
GstH265PPSExtensionParams pps_extension_params;
/* calculated values */
guint32 PicWidthInCtbsY;
guint32 PicHeightInCtbsY;
@ -1010,6 +1101,8 @@ struct _GstH265SliceHdr
gint8 cb_qp_offset;
gint8 cr_qp_offset;
guint8 cu_chroma_qp_offset_enabled_flag;
guint8 deblocking_filter_override_flag;
guint8 deblocking_filter_disabled_flag;
gint8 beta_offset_div2;