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47 lines
1.7 KiB
Diff
47 lines
1.7 KiB
Diff
From 19a2ab86f47213575ebcde216505623bc65e3918 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Fri, 10 May 2019 14:11:58 +0100
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Subject: [PATCH] staging: bcm2835-codec: Convert V4L2 nsec timestamps
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to MMAL usec
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V4L2 uses nsecs, whilst MMAL uses usecs, but the code wasn't converting
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between them. This upsets video encode rate control.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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.../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c | 9 +++++++--
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1 file changed, 7 insertions(+), 2 deletions(-)
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--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
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+++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
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@@ -823,7 +823,8 @@ static void op_buffer_cb(struct vchiq_mm
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vb2->flags |= V4L2_BUF_FLAG_LAST;
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}
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- vb2->vb2_buf.timestamp = mmal_buf->pts;
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+ /* vb2 timestamps in nsecs, mmal in usecs */
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+ vb2->vb2_buf.timestamp = mmal_buf->pts * 1000;
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vb2_set_plane_payload(&vb2->vb2_buf, 0, mmal_buf->length);
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if (mmal_buf->mmal_flags & MMAL_BUFFER_HEADER_FLAG_KEYFRAME)
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@@ -847,6 +848,7 @@ static void op_buffer_cb(struct vchiq_mm
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static void vb2_to_mmal_buffer(struct m2m_mmal_buffer *buf,
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struct vb2_v4l2_buffer *vb2)
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{
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+ u64 pts;
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buf->mmal.mmal_flags = 0;
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if (vb2->flags & V4L2_BUF_FLAG_KEYFRAME)
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buf->mmal.mmal_flags |= MMAL_BUFFER_HEADER_FLAG_KEYFRAME;
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@@ -869,7 +871,10 @@ static void vb2_to_mmal_buffer(struct m2
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if (!buf->mmal.length || vb2->flags & V4L2_BUF_FLAG_LAST)
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buf->mmal.mmal_flags |= MMAL_BUFFER_HEADER_FLAG_EOS;
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- buf->mmal.pts = vb2->vb2_buf.timestamp;
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+ /* vb2 timestamps in nsecs, mmal in usecs */
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+ pts = vb2->vb2_buf.timestamp;
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+ do_div(pts, 1000);
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+ buf->mmal.pts = pts;
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buf->mmal.dts = MMAL_TIME_UNKNOWN;
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}
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