target/linux/bcm27xx/patches-5.4/950-0736-staging-vc04_services-bcm2835-codec-Request-headers-.patch


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From 2822134c5f5c03893706df64625f3390792bb68a Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Fri, 15 May 2020 13:43:08 +0100
Subject: [PATCH] staging:vc04_services: bcm2835-codec: Request headers
 with I-frame

V4L2 wishes to have the codec header bytes in the same buffer as the
first encoded frame, so it does become 1-in 1-out for encoding.
The firmware now has an option to do this, so enable it.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 .../staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c | 5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
@@ -1967,6 +1967,11 @@ static int bcm2835_codec_create_componen
 					MMAL_PARAMETER_VIDEO_ENCODE_SPS_TIMING,
 					&param, sizeof(param));
 
+		/* Enable inserting headers into the first frame */
+		vchiq_mmal_port_parameter_set(ctx->dev->instance,
+					      &ctx->component->control,
+					      MMAL_PARAMETER_VIDEO_ENCODE_HEADERS_WITH_FRAME,
+					      &param, sizeof(param));
 	} else {
 		if (ctx->q_data[V4L2_M2M_DST].sizeimage <
 			ctx->component->output[0].minimum_buffer.size)