system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-21 11:38:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

[media] coda: implement encoder stop command

Browse source 
There is no need to call v4l2_m2m_try_schedule to kick off draining the
bitstream buffer for the encoder, but we have to wake up the destination
queue in case there are no new OUTPUT buffers to be encoded and userspace
is already polling for new CAPTURE buffers.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Philipp Zabel 2017-03-02 06:51:44 -03:00 committed by Mauro Carvalho Chehab
parent fbd4676cc2
commit 59195ceb2d
1 changed files with 47 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
drivers/media/platform/coda/coda-common.c
View file

@ -881,6 +881,47 @@ static int coda_g_selection(struct file *file, void *fh,
return 0;
}
static int coda_try_encoder_cmd(struct file *file, void *fh,
struct v4l2_encoder_cmd *ec)
{
if (ec->cmd != V4L2_ENC_CMD_STOP)
return -EINVAL;
if (ec->flags & V4L2_ENC_CMD_STOP_AT_GOP_END)
return -EINVAL;
return 0;
}
static int coda_encoder_cmd(struct file *file, void *fh,
struct v4l2_encoder_cmd *ec)
{
struct coda_ctx *ctx = fh_to_ctx(fh);
struct vb2_queue *dst_vq;
int ret;
ret = coda_try_encoder_cmd(file, fh, ec);
if (ret < 0)
return ret;
/* Ignore encoder stop command silently in decoder context */
if (ctx->inst_type != CODA_INST_ENCODER)
return 0;
/* Set the stream-end flag on this context */
ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
/* If there is no buffer in flight, wake up */
if (ctx->qsequence == ctx->osequence) {
dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
V4L2_BUF_TYPE_VIDEO_CAPTURE);
dst_vq->last_buffer_dequeued = true;
wake_up(&dst_vq->done_wq);
}
return 0;
}
static int coda_try_decoder_cmd(struct file *file, void *fh,
struct v4l2_decoder_cmd *dc)
{
@ -1054,6 +1095,8 @@ static const struct v4l2_ioctl_ops coda_ioctl_ops = {
.vidioc_g_selection = coda_g_selection,
.vidioc_try_encoder_cmd = coda_try_encoder_cmd,
.vidioc_encoder_cmd = coda_encoder_cmd,
.vidioc_try_decoder_cmd = coda_try_decoder_cmd,
.vidioc_decoder_cmd = coda_decoder_cmd,
@ -1330,9 +1373,13 @@ static void coda_buf_queue(struct vb2_buffer *vb)
mutex_lock(&ctx->bitstream_mutex);
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
if (vb2_is_streaming(vb->vb2_queue))
/* This set buf->sequence = ctx->qsequence++ */
coda_fill_bitstream(ctx, true);
mutex_unlock(&ctx->bitstream_mutex);
} else {
if (ctx->inst_type == CODA_INST_ENCODER &&
vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
vbuf->sequence = ctx->qsequence++;
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
}
}