@@ -102,7 +102,7 @@ static void cedrus_write_frame_list(struct cedrus_ctx *ctx,
struct cedrus_dev *dev = ctx->dev;
unsigned long used_dpbs = 0;
unsigned int position;
- unsigned int output = 0;
+ int output = -1;
unsigned int i;
cap_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
@@ -125,6 +125,11 @@ static void cedrus_write_frame_list(struct cedrus_ctx *ctx,
position = cedrus_buf->codec.h264.position;
used_dpbs |= BIT(position);
+ if (run->dst->vb2_buf.timestamp == dpb->reference_ts) {
+ output = position;
+ continue;
+ }
+
if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
continue;
@@ -132,13 +137,11 @@ static void cedrus_write_frame_list(struct cedrus_ctx *ctx,
dpb->top_field_order_cnt,
dpb->bottom_field_order_cnt,
&pic_list[position]);
-
- output = max(position, output);
}
- position = find_next_zero_bit(&used_dpbs, CEDRUS_H264_FRAME_NUM,
- output);
- if (position >= CEDRUS_H264_FRAME_NUM)
+ if (output >= 0)
+ position = output;
+ else
position = find_first_zero_bit(&used_dpbs, CEDRUS_H264_FRAME_NUM);
output_buf = vb2_to_cedrus_buffer(&run->dst->vb2_buf);
Current frame list construction algorithm assumes that decoded image will be output into its own buffer. That is true for progressive content but not for interlaced where each field is decoded separately into same buffer. Fix that by checking if capture buffer is listed in DPB. If it is, reuse it. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> --- drivers/staging/media/sunxi/cedrus/cedrus_h264.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)