@@ -1348,7 +1348,8 @@ static bool mxc_jpeg_source_change(struct mxc_jpeg_ctx *ctx,
q_data_cap = mxc_jpeg_get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
if (mxc_jpeg_compare_format(q_data_cap->fmt, jpeg_src_buf->fmt))
jpeg_src_buf->fmt = q_data_cap->fmt;
- if (q_data_cap->fmt != jpeg_src_buf->fmt ||
+ if (!ctx->source_change_cnt ||
+ q_data_cap->fmt != jpeg_src_buf->fmt ||
q_data_cap->w != jpeg_src_buf->w ||
q_data_cap->h != jpeg_src_buf->h) {
dev_dbg(dev, "Detected jpeg res=(%dx%d)->(%dx%d), pixfmt=%c%c%c%c\n",
@@ -1392,6 +1393,7 @@ static bool mxc_jpeg_source_change(struct mxc_jpeg_ctx *ctx,
mxc_jpeg_sizeimage(q_data_cap);
notify_src_chg(ctx);
ctx->source_change = 1;
+ ctx->source_change_cnt++;
if (vb2_is_streaming(v4l2_m2m_get_dst_vq(ctx->fh.m2m_ctx)))
mxc_jpeg_set_last_buffer(ctx);
}
@@ -1611,6 +1613,9 @@ static int mxc_jpeg_queue_setup(struct vb2_queue *q,
for (i = 0; i < *nplanes; i++)
sizes[i] = mxc_jpeg_get_plane_size(q_data, i);
+ if (V4L2_TYPE_IS_OUTPUT(q->type))
+ ctx->source_change_cnt = 0;
+
return 0;
}
@@ -99,6 +99,7 @@ struct mxc_jpeg_ctx {
enum mxc_jpeg_enc_state enc_state;
int slot;
unsigned int source_change;
+ unsigned int source_change_cnt;
bool header_parsed;
struct v4l2_ctrl_handler ctrl_handler;
u8 jpeg_quality;
After gstreamer rework the dynamic resolution change handling, gstreamer stop doing capture buffer allocation based on guesses and wait for the source change event when available. It requires driver always notify source change event in the initialization, even if the size parsed is equal to the size set on capture queue. otherwise, the pipeline will be stalled. Currently driver may not notify source change event if the parsed format and size are equal to those previously established, but it may stall the gstreamer pipeline. The link of gstreamer patch is https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4437 Fixes: b4e1fb8643da ("media: imx-jpeg: Support dynamic resolution change") Signed-off-by: Ming Qian <ming.qian@nxp.com> --- drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c | 7 ++++++- drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-)