mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 14:37:57 +00:00
fce21ae4cc
Right now all brcm2708 patches are extracted from the non-mainline raspberrypi/linux git tree. Many of them are hacks and/or are unneeded in LEDE. Raspberry Pi is getting better and better mainline support so it would be nice to finally start maintaining patches in a cleaner way: 1) Backport patches accepted in upstream tree 2) Start using upstream drivers 3) Pick only these patches that are needed for more complete support Handling above tasks requires grouping patches - ideally using the same prefixes as generic ones. It means we should rename existing patches to use some high prefix. This will allow e.g. use 0xx for backported code. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Stijn Tintel <stijn@linux-ipv6.be>
88 lines
3.3 KiB
Diff
88 lines
3.3 KiB
Diff
From 02ceda02182f6cb538be397b8d8f34b64a254559 Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
|
Date: Mon, 13 Feb 2017 11:10:50 +0000
|
|
Subject: [PATCH] BCM2835-V4L2: Ensure H264 header bytes get a sensible
|
|
timestamp
|
|
|
|
H264 header come off VC with 0 timestamps, which means they get a
|
|
strange timestamp when processed with VC/kernel start times,
|
|
particularly if used with the inline header option.
|
|
Remember the last frame timestamp and use that if set, or otherwise
|
|
use the kernel start time.
|
|
|
|
https://github.com/raspberrypi/linux/issues/1836
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
|
---
|
|
drivers/media/platform/bcm2835/bcm2835-camera.c | 30 ++++++++++++++++++++++---
|
|
drivers/media/platform/bcm2835/bcm2835-camera.h | 2 ++
|
|
2 files changed, 29 insertions(+), 3 deletions(-)
|
|
|
|
--- a/drivers/media/platform/bcm2835/bcm2835-camera.c
|
|
+++ b/drivers/media/platform/bcm2835/bcm2835-camera.c
|
|
@@ -356,8 +356,13 @@ static void buffer_cb(struct vchiq_mmal_
|
|
}
|
|
} else {
|
|
if (dev->capture.frame_count) {
|
|
- if (dev->capture.vc_start_timestamp != -1 &&
|
|
- pts != 0) {
|
|
+ if (dev->capture.vc_start_timestamp == -1) {
|
|
+ buf->vb.vb2_buf.timestamp = ktime_get_ns();
|
|
+ v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
|
|
+ "Buffer time set as current time - %lld",
|
|
+ buf->vb.vb2_buf.timestamp);
|
|
+
|
|
+ } else if(pts != 0) {
|
|
struct timeval timestamp;
|
|
s64 runtime_us = pts -
|
|
dev->capture.vc_start_timestamp;
|
|
@@ -390,10 +395,27 @@ static void buffer_cb(struct vchiq_mmal_
|
|
buf->vb.vb2_buf.timestamp = timestamp.tv_sec * 1000000000ULL +
|
|
timestamp.tv_usec * 1000ULL;
|
|
} else {
|
|
- buf->vb.vb2_buf.timestamp = ktime_get_ns();
|
|
+ if (dev->capture.last_timestamp) {
|
|
+ buf->vb.vb2_buf.timestamp = dev->capture.last_timestamp;
|
|
+ v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
|
|
+ "Buffer time set as last timestamp - %lld",
|
|
+ buf->vb.vb2_buf.timestamp);
|
|
+ }
|
|
+ else {
|
|
+ buf->vb.vb2_buf.timestamp =
|
|
+ dev->capture.kernel_start_ts.tv_sec * 1000000000ULL +
|
|
+ dev->capture.kernel_start_ts.tv_usec * 1000ULL;
|
|
+ v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
|
|
+ "Buffer time set as start timestamp - %lld",
|
|
+ buf->vb.vb2_buf.timestamp);
|
|
+ }
|
|
}
|
|
+ dev->capture.last_timestamp = buf->vb.vb2_buf.timestamp;
|
|
|
|
vb2_set_plane_payload(&buf->vb.vb2_buf, 0, length);
|
|
+ v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
|
|
+ "Buffer has ts %llu",
|
|
+ dev->capture.last_timestamp);
|
|
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
|
|
|
|
if (mmal_flags & MMAL_BUFFER_HEADER_FLAG_EOS &&
|
|
@@ -559,6 +581,8 @@ static int start_streaming(struct vb2_qu
|
|
"Start time %lld size %d\n",
|
|
dev->capture.vc_start_timestamp, parameter_size);
|
|
|
|
+ dev->capture.last_timestamp = 0;
|
|
+
|
|
v4l2_get_timestamp(&dev->capture.kernel_start_ts);
|
|
|
|
/* enable the camera port */
|
|
--- a/drivers/media/platform/bcm2835/bcm2835-camera.h
|
|
+++ b/drivers/media/platform/bcm2835/bcm2835-camera.h
|
|
@@ -93,6 +93,8 @@ struct bm2835_mmal_dev {
|
|
s64 vc_start_timestamp;
|
|
/* Kernel start timestamp for streaming */
|
|
struct timeval kernel_start_ts;
|
|
+ /* Timestamp of last frame */
|
|
+ u64 last_timestamp;
|
|
|
|
struct vchiq_mmal_port *port; /* port being used for capture */
|
|
/* camera port being used for capture */
|