Commit 2fc29ef5 authored by Michael Tretter's avatar Michael Tretter Committed by Mauro Carvalho Chehab
Browse files

media: allegro: start a GOP with an IDR frame 



When creating a channel, freq_idr defines the number of frames between
IDR frames in the coded stream. In V4L2, the period between IDR frames
shall be taken from the GOP_SIZE control.

Set the IDR frame frequency equal to the GOP size and let every GOP
start with an IDR frame.

Signed-off-by: default avatarMichael Tretter <m.tretter@pengutronix.de>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 081172a1

drivers/staging/media/allegro-dvt/allegro-core.c

+2 −2
Original line number Diff line number Diff line
@@ -390,7 +390,7 @@ struct mcu_msg_create_channel { 


	/* gop param */

	u32 gop_ctrl_mode;

	u32 freq_ird;

	u32 freq_idr;

	u32 freq_lt;

	u32 gdr_mode;

	u16 gop_length;
@@ -1115,7 +1115,7 @@ static int allegro_mcu_send_create_channel(struct allegro_dev *dev, 
	msg.rate_control_option = 0x00000000;



	msg.gop_ctrl_mode = 0x00000000;

	msg.freq_ird = 0x7fffffff;

	msg.freq_idr = channel->gop_size;

	msg.freq_lt = 0;

	msg.gdr_mode = 0x00000000;

	msg.gop_length = channel->gop_size;