staging: bcm2835_codec: Include timing info in SPS headers

Inserting timing information into the VUI block of the SPS is
optional with the VPU encoder.
GStreamer appears to require them when using V4L2 M2M, therefore
set the option to enable them from the encoder.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c

@@ -1785,6 +1785,8 @@ static int bcm2835_codec_create_component(struct bcm2835_codec_ctx *ctx)
 		goto destroy_component;
 
 	if (dev->role == ENCODE) {
+		u32 param = 1;
+
 		if (ctx->q_data[V4L2_M2M_SRC].sizeimage <
 			ctx->component->output[0].minimum_buffer.size)
 			v4l2_err(&dev->v4l2_dev, "buffer size mismatch sizeimage %u < min size %u\n",
@@ -1793,6 +1795,16 @@ static int bcm2835_codec_create_component(struct bcm2835_codec_ctx *ctx)
 
 		/* Now we have a component we can set all the ctrls */
 		bcm2835_codec_set_ctrls(ctx);
+
+		/* Enable SPS Timing header so framerate information is encoded
+		 * in the H264 header.
+		 */
+		vchiq_mmal_port_parameter_set(
+					ctx->dev->instance,
+					&ctx->component->output[0],
+					MMAL_PARAMETER_VIDEO_ENCODE_SPS_TIMING,
+					&param, sizeof(param));
+
 	} else {
 		if (ctx->q_data[V4L2_M2M_DST].sizeimage <
 			ctx->component->output[0].minimum_buffer.size)