From: Benjamin Cheng <ben@bcheng.me> To: ffmpeg-devel@ffmpeg.org Cc: Benjamin Cheng <ben@bcheng.me> Subject: [FFmpeg-devel] [PATCH v2] vulkan_h264: fill correct ScalingList8x8 entries Date: Tue, 1 Aug 2023 10:18:01 -0400 Message-ID: <20230801141801.2324-1-ben@bcheng.me> (raw) The Vulkan spec wants ScalingList8x8 as defined by ITU spec, which is in a different order from how ffmpeg parses it. --- libavcodec/vulkan_h264.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/libavcodec/vulkan_h264.c b/libavcodec/vulkan_h264.c index 84bcef7933..9d4ffa1f9d 100644 --- a/libavcodec/vulkan_h264.c +++ b/libavcodec/vulkan_h264.c @@ -43,6 +43,9 @@ typedef struct H264VulkanDecodePicture { VkVideoDecodeH264PictureInfoKHR h264_pic_info; } H264VulkanDecodePicture; +const static int h264_scaling_list8_order[] = { 0, 3, 1, 4, 2, 5 }; + + static int vk_h264_fill_pict(AVCodecContext *avctx, H264Picture **ref_src, VkVideoReferenceSlotInfoKHR *ref_slot, /* Main structure */ VkVideoPictureResourceInfoKHR *ref, /* Goes in ^ */ @@ -147,9 +150,9 @@ static void set_sps(const SPS *sps, STD_VIDEO_H264_SCALING_LIST_4X4_NUM_ELEMENTS * sizeof(**sps->scaling_matrix4)); for (int i = 0; i < STD_VIDEO_H264_SCALING_LIST_8X8_NUM_LISTS; i++) - memcpy(vksps_scaling->ScalingList8x8[i], sps->scaling_matrix8[i], + memcpy(vksps_scaling->ScalingList8x8[i], sps->scaling_matrix8[h264_scaling_list8_order[i]], STD_VIDEO_H264_SCALING_LIST_8X8_NUM_ELEMENTS * sizeof(**sps->scaling_matrix8)); - + *vksps_vui_header = (StdVideoH264HrdParameters) { .cpb_cnt_minus1 = sps->cpb_cnt - 1, .bit_rate_scale = sps->bit_rate_scale, @@ -252,7 +255,7 @@ static void set_pps(const PPS *pps, const SPS *sps, STD_VIDEO_H264_SCALING_LIST_4X4_NUM_ELEMENTS * sizeof(**pps->scaling_matrix4)); for (int i = 0; i < STD_VIDEO_H264_SCALING_LIST_8X8_NUM_LISTS; i++) - memcpy(vkpps_scaling->ScalingList8x8[i], pps->scaling_matrix8[i], + memcpy(vkpps_scaling->ScalingList8x8[i], pps->scaling_matrix8[h264_scaling_list8_order[i]], STD_VIDEO_H264_SCALING_LIST_8X8_NUM_ELEMENTS * sizeof(**pps->scaling_matrix8)); *vkpps = (StdVideoH264PictureParameterSet) { -- 2.41.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
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