mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-01 01:14:19 -04:00
Code Issues Packages Projects Releases Wiki Activity

media: allegro: start a GOP with an IDR frame

Browse Source 
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: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Michael Tretter
2020-03-16 16:26:25 +01:00
committed by Mauro Carvalho Chehab
parent 081172a118
commit 2fc29ef598
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/staging/media/allegro-dvt/allegro-core.c
View File

@@ -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;