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media: amphion: Clear last_buffer_dequeued flag for DEC_CMD_START

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The V4L2_DEC_CMD_START command may be used to handle the dynamic source
change, which will triggers an implicit decoder drain.
The last_buffer_dequeued flag is set in the implicit decoder drain,
so driver need to clear it to continue the following decoding flow.

Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Ming Qian 2025-12-17 11:02:22 +08:00 committed by Hans Verkuil
parent 8f1fd70fc7
commit d85f3207d7
1 changed files with 1 additions and 0 deletions
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1
drivers/media/platform/amphion/vdec.c
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@ -724,6 +724,7 @@ static int vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd
switch (cmd->cmd) {
case V4L2_DEC_CMD_START:
vdec_cmd_start(inst);
vb2_clear_last_buffer_dequeued(v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx));
break;
case V4L2_DEC_CMD_STOP:
vdec_cmd_stop(inst);