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radeonsi/vcn: Set correct chroma format for H264 decode

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Fixes decoding monochrome (chroma_format_idc = 0).

Cc: mesa-stable
Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33396>
(cherry picked from commit 110d406302)
This commit is contained in:
David Rosca 2025-02-04 18:51:05 +01:00 • committed by Eric Engestrom
parent 326ea58650
commit 7ee94ef063
2 changed files with 2 additions and 21 deletions
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2
.pick_status.json
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@ -184,7 +184,7 @@
"description": "radeonsi/vcn: Set correct chroma format for H264 decode",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": null,
"notes": null

21
src/gallium/drivers/radeonsi/radeon_vcn_dec.c
View file

@ -107,32 +107,13 @@ static rvcn_dec_message_avc_t get_h264_msg(struct radeon_decoder *dec,
result.sps_info_flags |= ((dec->dpb_type == DPB_DYNAMIC_TIER_2) ? 0 : 1)
<< RDECODE_SPS_INFO_H264_EXTENSION_SUPPORT_FLAG_SHIFT;
result.chroma_format = pic->pps->sps->chroma_format_idc;
result.bit_depth_luma_minus8 = pic->pps->sps->bit_depth_luma_minus8;
result.bit_depth_chroma_minus8 = pic->pps->sps->bit_depth_chroma_minus8;
result.log2_max_frame_num_minus4 = pic->pps->sps->log2_max_frame_num_minus4;
result.pic_order_cnt_type = pic->pps->sps->pic_order_cnt_type;
result.log2_max_pic_order_cnt_lsb_minus4 = pic->pps->sps->log2_max_pic_order_cnt_lsb_minus4;
switch (dec->base.chroma_format) {
case PIPE_VIDEO_CHROMA_FORMAT_NONE:
break;
case PIPE_VIDEO_CHROMA_FORMAT_400:
result.chroma_format = 0;
break;
case PIPE_VIDEO_CHROMA_FORMAT_420:
result.chroma_format = 1;
break;
case PIPE_VIDEO_CHROMA_FORMAT_422:
result.chroma_format = 2;
break;
case PIPE_VIDEO_CHROMA_FORMAT_444:
result.chroma_format = 3;
break;
case PIPE_VIDEO_CHROMA_FORMAT_440:
result.chroma_format = 4;
break;
}
result.pps_info_flags = 0;
result.pps_info_flags |= pic->pps->transform_8x8_mode_flag << 0;
result.pps_info_flags |= pic->pps->redundant_pic_cnt_present_flag << 1;