From: Benjamin Cheng <ben@bcheng.me>
To: ffmpeg-devel@ffmpeg.org
Cc: Benjamin Cheng <ben@bcheng.me>
Subject: [FFmpeg-devel] [PATCH] vulkan_hevc: use diagonal scan order for scaling lists
Date: Thu, 27 Jul 2023 13:09:01 -0400
Message-ID: <20230727170900.73974-2-ben@bcheng.me> (raw)
The hevc parser parses the diagonal scan order in bitstream into raster
scan order. However, the Vulkan spec wants it as specified in H265 spec,
which is diagonal scan order.
Tested on RADV.
---
libavcodec/vulkan_hevc.c | 83 ++++++++++++++++++++--------------------
1 file changed, 41 insertions(+), 42 deletions(-)
diff --git a/libavcodec/vulkan_hevc.c b/libavcodec/vulkan_hevc.c
index ab0f6b96d0..15f2c3aa82 100644
--- a/libavcodec/vulkan_hevc.c
+++ b/libavcodec/vulkan_hevc.c
@@ -17,6 +17,7 @@
*/
#include "hevcdec.h"
+#include "hevc_data.h"
#include "hevc_ps.h"
#include "vulkan_decode.h"
@@ -205,6 +206,44 @@ static StdVideoH265LevelIdc convert_to_vk_level_idc(int level_idc)
}
}
+static void copy_scaling_list(const ScalingList *sl,
+ StdVideoH265ScalingLists *vksl)
+{
+ for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_4X4_NUM_LISTS; i++) {
+ for (int j = 0; j < STD_VIDEO_H265_SCALING_LIST_4X4_NUM_ELEMENTS; j++) {
+ uint8_t pos = 4 * ff_hevc_diag_scan4x4_y[j] + ff_hevc_diag_scan4x4_x[j];
+ vksl->ScalingList4x4[i][j] = sl->sl[0][i][pos];
+ }
+ }
+
+ for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_8X8_NUM_LISTS; i++) {
+ for (int j = 0; j < STD_VIDEO_H265_SCALING_LIST_8X8_NUM_ELEMENTS; j++) {
+ uint8_t pos = 8 * ff_hevc_diag_scan8x8_y[j] + ff_hevc_diag_scan8x8_x[j];
+ vksl->ScalingList8x8[i][j] = sl->sl[1][i][pos];
+ }
+ }
+
+ for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_16X16_NUM_LISTS; i++) {
+ for (int j = 0; j < STD_VIDEO_H265_SCALING_LIST_16X16_NUM_ELEMENTS; j++) {
+ uint8_t pos = 8 * ff_hevc_diag_scan8x8_y[j] + ff_hevc_diag_scan8x8_x[j];
+ vksl->ScalingList16x16[i][j] = sl->sl[2][i][pos];
+ }
+ }
+
+ for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_32X32_NUM_LISTS; i++) {
+ for (int j = 0; j < STD_VIDEO_H265_SCALING_LIST_32X32_NUM_ELEMENTS; j++) {
+ uint8_t pos = 8 * ff_hevc_diag_scan8x8_y[j] + ff_hevc_diag_scan8x8_x[j];
+ vksl->ScalingList32x32[i][j] = sl->sl[3][i * 3][pos];
+ }
+ }
+
+ memcpy(vksl->ScalingListDCCoef16x16, sl->sl_dc[0],
+ STD_VIDEO_H265_SCALING_LIST_16X16_NUM_LISTS * sizeof(*vksl->ScalingListDCCoef16x16));
+
+ for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_32X32_NUM_LISTS; i++)
+ vksl->ScalingListDCCoef32x32[i] = sl->sl_dc[1][i * 3];
+}
+
static void set_sps(const HEVCSPS *sps, int sps_idx,
StdVideoH265ScalingLists *vksps_scaling,
StdVideoH265HrdParameters *vksps_vui_header,
@@ -218,27 +257,7 @@ static void set_sps(const HEVCSPS *sps, int sps_idx,
StdVideoH265ShortTermRefPicSet *str,
StdVideoH265LongTermRefPicsSps *ltr)
{
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_4X4_NUM_LISTS; i++)
- memcpy(vksps_scaling->ScalingList4x4[i], sps->scaling_list.sl[0][i],
- STD_VIDEO_H265_SCALING_LIST_4X4_NUM_ELEMENTS * sizeof(**vksps_scaling->ScalingList4x4));
-
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_8X8_NUM_LISTS; i++)
- memcpy(vksps_scaling->ScalingList8x8[i], sps->scaling_list.sl[1][i],
- STD_VIDEO_H265_SCALING_LIST_8X8_NUM_ELEMENTS * sizeof(**vksps_scaling->ScalingList8x8));
-
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_16X16_NUM_LISTS; i++)
- memcpy(vksps_scaling->ScalingList16x16[i], sps->scaling_list.sl[2][i],
- STD_VIDEO_H265_SCALING_LIST_16X16_NUM_ELEMENTS * sizeof(**vksps_scaling->ScalingList16x16));
-
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_32X32_NUM_LISTS; i++)
- memcpy(vksps_scaling->ScalingList32x32[i], sps->scaling_list.sl[3][i * 3],
- STD_VIDEO_H265_SCALING_LIST_32X32_NUM_ELEMENTS * sizeof(**vksps_scaling->ScalingList32x32));
-
- memcpy(vksps_scaling->ScalingListDCCoef16x16, sps->scaling_list.sl_dc[0],
- STD_VIDEO_H265_SCALING_LIST_16X16_NUM_LISTS * sizeof(*vksps_scaling->ScalingListDCCoef16x16));
-
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_32X32_NUM_LISTS; i++)
- vksps_scaling->ScalingListDCCoef32x32[i] = sps->scaling_list.sl_dc[1][i * 3];
+ copy_scaling_list(&sps->scaling_list, vksps_scaling);
*vksps_vui_header = (StdVideoH265HrdParameters) {
.flags = (StdVideoH265HrdFlags) {
@@ -464,27 +483,7 @@ static void set_pps(const HEVCPPS *pps, const HEVCSPS *sps,
StdVideoH265PictureParameterSet *vkpps,
StdVideoH265PredictorPaletteEntries *pal)
{
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_4X4_NUM_LISTS; i++)
- memcpy(vkpps_scaling->ScalingList4x4[i], pps->scaling_list.sl[0][i],
- STD_VIDEO_H265_SCALING_LIST_4X4_NUM_ELEMENTS * sizeof(**vkpps_scaling->ScalingList4x4));
-
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_8X8_NUM_LISTS; i++)
- memcpy(vkpps_scaling->ScalingList8x8[i], pps->scaling_list.sl[1][i],
- STD_VIDEO_H265_SCALING_LIST_8X8_NUM_ELEMENTS * sizeof(**vkpps_scaling->ScalingList8x8));
-
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_16X16_NUM_LISTS; i++)
- memcpy(vkpps_scaling->ScalingList16x16[i], pps->scaling_list.sl[2][i],
- STD_VIDEO_H265_SCALING_LIST_16X16_NUM_ELEMENTS * sizeof(**vkpps_scaling->ScalingList16x16));
-
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_32X32_NUM_LISTS; i++)
- memcpy(vkpps_scaling->ScalingList32x32[i], pps->scaling_list.sl[3][i * 3],
- STD_VIDEO_H265_SCALING_LIST_32X32_NUM_ELEMENTS * sizeof(**vkpps_scaling->ScalingList32x32));
-
- memcpy(vkpps_scaling->ScalingListDCCoef16x16, pps->scaling_list.sl_dc[0],
- STD_VIDEO_H265_SCALING_LIST_16X16_NUM_LISTS * sizeof(*vkpps_scaling->ScalingListDCCoef16x16));
-
- for (int i = 0; i < STD_VIDEO_H265_SCALING_LIST_32X32_NUM_LISTS; i++)
- vkpps_scaling->ScalingListDCCoef32x32[i] = sps->scaling_list.sl_dc[1][i * 3];
+ copy_scaling_list(&sps->scaling_list, vkpps_scaling);
*vkpps = (StdVideoH265PictureParameterSet) {
.flags = (StdVideoH265PpsFlags) {
--
2.41.0
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reply other threads:[~2023-07-27 17:13 UTC|newest]
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