rkmppdec: divide hor stride by 4 when in AFBC. Most likely an mpp bug

nyanmisaka · Jan 4, 2024 · 4487c02 · 4487c02
1 parent 1b2fe16
commit 4487c02
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/libavcodec/rkmppdec.c b/libavcodec/rkmppdec.c
@@ -514,7 +514,8 @@ static int rkmpp_export_frame(AVCodecContext *avctx, AVFrame *frame, MppFrame mp
                     DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_SPARSE | AFBC_FORMAT_MOD_BLOCK_SIZE_16x16);
         layer->format = rkmpp_get_drm_afbc_format(mpp_fmt);
         layer->nb_planes = 1;
-        layer->planes[0].pitch = mpp_frame_get_hor_stride(mpp_frame);
+        // no idea why 1/4, found by testing, should be an mpp bug
+        layer->planes[0].pitch = mpp_frame_get_hor_stride(mpp_frame) >> 2;
         layer->planes[0].offset = mpp_frame_get_offset_y(mpp_frame) * layer->planes[0].pitch;
     } else {
         layer->format = rkmpp_get_drm_format(mpp_fmt);