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va: vp9dec: update segmentation and store the result.
The segmentation is stateful, its information may depend on the previous segmentation setting. For example, if loop_filter_delta_enabled is TRUE, the filter_level[GST_VP9_REF_FRAME_INTRA][1] should inherit the previous frame's value and can not be calculated by the current frame's segmentation data only. So we need to maintain the segmentation state inside the vp9 decoder and update it when the new frame header comes. We also fix the CLAMP issue of lvl_seg and intra_lvl because of their wrong uint type here. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2369>
This commit is contained in:
He Junyan
GStreamer Marge Bot
parent
17e8fea158
commit
ac51e41928
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@ -69,6 +69,7 @@ struct _GstVaVp9DecClass
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struct _GstVaVp9Dec
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{
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GstVaBaseDec parent;
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GstVp9Segmentation segmentation[GST_VP9_MAX_SEGMENTS];
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gboolean need_negotiation;
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};
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@ -311,27 +312,15 @@ _fill_param (GstVp9Decoder * decoder, GstVp9Picture * picture, GstVp9Dpb * dpb)
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VAPictureParameterBufferType, &pic_param, sizeof (pic_param));
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}
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static inline gboolean
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_fill_slice (GstVp9Decoder * decoder, GstVp9Picture * picture)
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static void
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_update_segmentation (GstVaVp9Dec * self, GstVp9FrameHeader * header)
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{
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GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
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GstVaDecodePicture *va_pic;
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const GstVp9FrameHeader *frame_hdr = &picture->frame_hdr;
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const GstVp9LoopFilterParams *lfp = &frame_hdr->loop_filter_params;
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const GstVp9QuantizationParams *qp = &frame_hdr->quantization_params;
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const GstVp9SegmentationParams *sp = &frame_hdr->segmentation_params;
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const GstVp9LoopFilterParams *lfp = &header->loop_filter_params;
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const GstVp9QuantizationParams *qp = &header->quantization_params;
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const GstVp9SegmentationParams *sp = &header->segmentation_params;
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guint8 n_shift = lfp->loop_filter_level >> 5;
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VASliceParameterBufferVP9 slice_param;
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guint i;
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/* *INDENT-OFF* */
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slice_param = (VASliceParameterBufferVP9) {
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.slice_data_size = picture->size,
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.slice_data_offset = 0,
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.slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
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};
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/* *INDENT-ON* */
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for (i = 0; i < GST_VP9_MAX_SEGMENTS; i++) {
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gint16 luma_dc_quant_scale;
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gint16 luma_ac_quant_scale;
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@ -339,18 +328,17 @@ _fill_slice (GstVp9Decoder * decoder, GstVp9Picture * picture)
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gint16 chroma_ac_quant_scale;
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guint8 qindex;
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guint8 lvl_lookup[GST_VP9_MAX_REF_LF_DELTAS][GST_VP9_MAX_MODE_LF_DELTAS];
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guint lvl_seg = lfp->loop_filter_level;
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gint lvl_seg = lfp->loop_filter_level;
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/* 8.6.1 Dequantization functions */
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qindex = gst_vp9_get_qindex (sp, qp, i);
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luma_dc_quant_scale =
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gst_vp9_get_dc_quant (qindex, qp->delta_q_y_dc, frame_hdr->bit_depth);
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luma_ac_quant_scale =
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gst_vp9_get_ac_quant (qindex, 0, frame_hdr->bit_depth);
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gst_vp9_get_dc_quant (qindex, qp->delta_q_y_dc, header->bit_depth);
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luma_ac_quant_scale = gst_vp9_get_ac_quant (qindex, 0, header->bit_depth);
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chroma_dc_quant_scale =
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gst_vp9_get_dc_quant (qindex, qp->delta_q_uv_dc, frame_hdr->bit_depth);
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gst_vp9_get_dc_quant (qindex, qp->delta_q_uv_dc, header->bit_depth);
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chroma_ac_quant_scale =
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gst_vp9_get_ac_quant (qindex, qp->delta_q_uv_ac, frame_hdr->bit_depth);
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gst_vp9_get_ac_quant (qindex, qp->delta_q_uv_ac, header->bit_depth);
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if (!lfp->loop_filter_level) {
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memset (lvl_lookup, 0, sizeof (lvl_lookup));
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@ -370,9 +358,11 @@ _fill_slice (GstVp9Decoder * decoder, GstVp9Picture * picture)
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memset (lvl_lookup, lvl_seg, sizeof (lvl_lookup));
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} else {
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guint8 ref, mode;
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guint intra_lvl = lvl_seg +
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(((guint) lfp->loop_filter_ref_deltas[GST_VP9_REF_FRAME_INTRA]) <<
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n_shift);
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gint intra_lvl = lvl_seg +
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(lfp->loop_filter_ref_deltas[GST_VP9_REF_FRAME_INTRA] << n_shift);
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memcpy (lvl_lookup, self->segmentation[i].filter_level,
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sizeof (lvl_lookup));
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lvl_lookup[GST_VP9_REF_FRAME_INTRA][0] =
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CLAMP (intra_lvl, 0, GST_VP9_MAX_LOOP_FILTER);
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@ -388,24 +378,61 @@ _fill_slice (GstVp9Decoder * decoder, GstVp9Picture * picture)
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}
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/* *INDENT-OFF* */
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slice_param.seg_param[i] = (VASegmentParameterVP9) {
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.segment_flags.fields = {
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.segment_reference_enabled =
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sp->feature_enabled[i][GST_VP9_SEG_LVL_REF_FRAME],
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.segment_reference =
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sp->feature_data[i][GST_VP9_SEG_LVL_REF_FRAME],
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.segment_reference_skipped =
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sp->feature_enabled[i][GST_VP9_SEG_SEG_LVL_SKIP],
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},
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self->segmentation[i] = (GstVp9Segmentation) {
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.luma_dc_quant_scale = luma_dc_quant_scale,
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.luma_ac_quant_scale = luma_ac_quant_scale,
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.chroma_dc_quant_scale = chroma_dc_quant_scale,
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.chroma_ac_quant_scale = chroma_ac_quant_scale,
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.luma_dc_quant_scale = luma_dc_quant_scale,
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.luma_ac_quant_scale = luma_ac_quant_scale,
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.chroma_dc_quant_scale = chroma_dc_quant_scale,
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.chroma_ac_quant_scale = chroma_ac_quant_scale,
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.reference_frame_enabled = sp->feature_enabled[i][GST_VP9_SEG_LVL_REF_FRAME],
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.reference_frame = sp->feature_data[i][GST_VP9_SEG_LVL_REF_FRAME],
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.reference_skip = sp->feature_enabled[i][GST_VP9_SEG_SEG_LVL_SKIP],
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};
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/* *INDENT-ON* */
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memcpy (slice_param.seg_param[i].filter_level, lvl_lookup,
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memcpy (self->segmentation[i].filter_level, lvl_lookup,
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sizeof (lvl_lookup));
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}
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}
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static inline gboolean
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_fill_slice (GstVp9Decoder * decoder, GstVp9Picture * picture)
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{
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GstVaBaseDec *base = GST_VA_BASE_DEC (decoder);
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GstVaVp9Dec *self = GST_VA_VP9_DEC (decoder);
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GstVaDecodePicture *va_pic;
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const GstVp9Segmentation *seg;
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VASliceParameterBufferVP9 slice_param;
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guint i;
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_update_segmentation (self, &picture->frame_hdr);
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/* *INDENT-OFF* */
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slice_param = (VASliceParameterBufferVP9) {
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.slice_data_size = picture->size,
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.slice_data_offset = 0,
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.slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
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};
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/* *INDENT-ON* */
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for (i = 0; i < GST_VP9_MAX_SEGMENTS; i++) {
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seg = &self->segmentation[i];
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/* *INDENT-OFF* */
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slice_param.seg_param[i] = (VASegmentParameterVP9) {
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.segment_flags.fields = {
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.segment_reference_enabled = seg->reference_frame_enabled,
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.segment_reference = seg->reference_frame,
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.segment_reference_skipped = seg->reference_skip,
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},
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.luma_dc_quant_scale = seg->luma_dc_quant_scale,
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.luma_ac_quant_scale = seg->luma_ac_quant_scale,
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.chroma_dc_quant_scale = seg->chroma_dc_quant_scale,
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.chroma_ac_quant_scale = seg->chroma_ac_quant_scale,
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};
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/* *INDENT-ON* */
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memcpy (slice_param.seg_param[i].filter_level, seg->filter_level,
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sizeof (slice_param.seg_param[i].filter_level));
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}
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@ -413,7 +440,6 @@ _fill_slice (GstVp9Decoder * decoder, GstVp9Picture * picture)
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return gst_va_decoder_add_slice_buffer (base->decoder, va_pic, &slice_param,
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sizeof (slice_param), (gpointer) picture->data, picture->size);
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}
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static gboolean
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