diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0211-staging-bcm2835-camera-Ensure-H264-header-bytes-get-.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0211-staging-bcm2835-camera-Ensure-H264-header-bytes-get-.patch | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0211-staging-bcm2835-camera-Ensure-H264-header-bytes-get-.patch b/target/linux/brcm2708/patches-4.19/950-0211-staging-bcm2835-camera-Ensure-H264-header-bytes-get-.patch new file mode 100644 index 0000000000..12afc4a1f8 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0211-staging-bcm2835-camera-Ensure-H264-header-bytes-get-.patch @@ -0,0 +1,87 @@ +From bf5bbfec3cb99c469eb59f2b19411146c47feb73 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.org> +Date: Mon, 29 Oct 2018 14:21:04 +0000 +Subject: [PATCH] staging: bcm2835-camera: Ensure H264 header bytes get + a sensible timestamp + +H264 header come from 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> +--- + .../bcm2835-camera/bcm2835-camera.c | 30 +++++++++++++++++-- + .../bcm2835-camera/bcm2835-camera.h | 2 ++ + 2 files changed, 29 insertions(+), 3 deletions(-) + +--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c ++++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c +@@ -363,8 +363,13 @@ 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) { + ktime_t timestamp; + s64 runtime_us = pts - + dev->capture.vc_start_timestamp; +@@ -377,10 +382,28 @@ static void buffer_cb(struct vchiq_mmal_ + ktime_to_ns(timestamp)); + buf->vb.vb2_buf.timestamp = ktime_to_ns(timestamp); + } 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 = ++ ktime_to_ns(dev->capture.kernel_start_ts); ++ 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 && +@@ -546,6 +569,7 @@ static int start_streaming(struct vb2_qu + dev->capture.vc_start_timestamp, parameter_size); + + dev->capture.kernel_start_ts = ktime_get(); ++ dev->capture.last_timestamp = 0; + + /* enable the camera port */ + dev->capture.port->cb_ctx = dev; +--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h ++++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h +@@ -90,6 +90,8 @@ struct bm2835_mmal_dev { + s64 vc_start_timestamp; + /* Kernel start timestamp for streaming */ + ktime_t 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 */ |