[PATCH v6 13/14] media: mediatek: decoder: fill av1 buffer size with picinfo

From: Kyrie Wu

Date: Sun Jul 19 2026 - 21:23:17 EST


The buffer size of y and c plane has been calculated in vcp/scp,
can fill each frame buffer size with picinfo directly.

Signed-off-by: Kyrie Wu <kyrie.wu@xxxxxxxxxxxx>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@xxxxxxxxxxxxx>
---
.../vcodec/decoder/vdec/vdec_av1_req_lat_if.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
index 4932ef469..14639098f 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
@@ -1811,18 +1811,19 @@ static int vdec_av1_slice_setup_core_buffer(struct vdec_av1_slice_instance *inst
{
struct vb2_buffer *vb;
struct vb2_queue *vq;
- int w, h, plane, size;
+ int plane;
int i;

plane = instance->ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes;
- w = vsi->frame.uh.upscaled_width;
- h = vsi->frame.uh.frame_height;
- size = ALIGN(w, VCODEC_DEC_ALIGNED_64) * ALIGN(h, VCODEC_DEC_ALIGNED_64);

/* frame buffer */
vsi->fb.y.dma_addr = fb->base_y.dma_addr;
+
+ vsi->fb.y.size = instance->ctx->picinfo.fb_sz[0];
+ vsi->fb.c.size = instance->ctx->picinfo.fb_sz[1];
+
if (plane == 1)
- vsi->fb.c.dma_addr = fb->base_y.dma_addr + size;
+ vsi->fb.c.dma_addr = fb->base_y.dma_addr + vsi->fb.y.size;
else
vsi->fb.c.dma_addr = fb->base_c.dma_addr;

@@ -1845,8 +1846,10 @@ static int vdec_av1_slice_setup_core_buffer(struct vdec_av1_slice_instance *inst
}

vref->y.dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
+ vref->y.size = vsi->fb.y.size;
+ vref->c.size = vsi->fb.c.size;
if (plane == 1)
- vref->c.dma_addr = vref->y.dma_addr + size;
+ vref->c.dma_addr = vref->y.dma_addr + vsi->fb.y.size;
else
vref->c.dma_addr = vb2_dma_contig_plane_dma_addr(vb, 1);
}
--
2.51.0.windows.2