38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
From b35ad716845db394d9850d123d3617653f26a921 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Sun, 13 Dec 2020 16:54:43 +0000
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Subject: [PATCH] staging/vc04_services/codec: Clear last buf dequeued
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flag on START
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It appears that the V4L2 M2M framework requires the driver to manually
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call vb2_clear_last_buffer_dequeued on the CAPTURE queue during a
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V4L2_DEC_CMD_START.
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Add such a call.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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.../staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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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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@@ -1780,6 +1780,7 @@ static int vidioc_decoder_cmd(struct fil
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{
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struct bcm2835_codec_ctx *ctx = file2ctx(file);
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struct bcm2835_codec_q_data *q_data = &ctx->q_data[V4L2_M2M_SRC];
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+ struct vb2_queue *dst_vq;
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int ret;
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v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s, cmd %u", __func__,
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@@ -1815,7 +1816,9 @@ static int vidioc_decoder_cmd(struct fil
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break;
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case V4L2_DEC_CMD_START:
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- /* Do we need to do anything here? */
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+ dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
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+ V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
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+ vb2_clear_last_buffer_dequeued(dst_vq);
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break;
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default:
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