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[media] coda: Set last buffer flag and fix EOS event

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Setting the last buffer flag causes the videobuf2 core to return -EPIPE from
DQBUF calls on the capture queue after the last buffer is dequeued.
This patch also fixes the EOS event to conform to the specification. It now is
sent right after the last buffer has been decoded instead of when the last
buffer is dequeued.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Philipp Zabel 2015-05-04 07:51:07 -03:00 committed by Mauro Carvalho Chehab
parent c16218402a
commit 9f2bfb33a8
3 changed files with 16 additions and 18 deletions
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4
drivers/media/platform/coda/coda-bit.c
View File

@ -1305,7 +1305,7 @@ static void coda_finish_encode(struct coda_ctx *ctx)
v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_DONE);
ctx->gopcounter--;
if (ctx->gopcounter < 0)
@ -1975,7 +1975,7 @@ static void coda_finish_decode(struct coda_ctx *ctx)
}
vb2_set_plane_payload(dst_buf, 0, payload);
v4l2_m2m_buf_done(dst_buf, ctx->frame_errors[display_idx] ?
coda_m2m_buf_done(ctx, dst_buf, ctx->frame_errors[display_idx] ?
VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
v4l2_dbg(1, coda_debug, &dev->v4l2_dev,

23
drivers/media/platform/coda/coda-common.c
View File

@ -724,35 +724,30 @@ static int coda_qbuf(struct file *file, void *priv,
}
static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
struct v4l2_buffer *buf)
struct vb2_buffer *buf)
{
struct vb2_queue *src_vq;
src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
(buf->sequence == (ctx->qsequence - 1)));
(buf->v4l2_buf.sequence == (ctx->qsequence - 1)));
}
static int coda_dqbuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_buffer *buf,
enum vb2_buffer_state state)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
int ret;
ret = v4l2_m2m_dqbuf(file, ctx->fh.m2m_ctx, buf);
/* If this is the last capture buffer, emit an end-of-stream event */
if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
coda_buf_is_end_of_stream(ctx, buf)) {
const struct v4l2_event eos_event = {
.type = V4L2_EVENT_EOS
};
if (coda_buf_is_end_of_stream(ctx, buf)) {
buf->v4l2_buf.flags |= V4L2_BUF_FLAG_LAST;
v4l2_event_queue_fh(&ctx->fh, &eos_event);
}
return ret;
v4l2_m2m_buf_done(buf, state);
}
static int coda_g_selection(struct file *file, void *fh,
@ -865,7 +860,7 @@ static const struct v4l2_ioctl_ops coda_ioctl_ops = {
.vidioc_qbuf = coda_qbuf,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_dqbuf = coda_dqbuf,
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,

3
drivers/media/platform/coda/coda.h
View File

@ -287,6 +287,9 @@ static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
void coda_bit_stream_end_flag(struct coda_ctx *ctx);
void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_buffer *buf,
enum vb2_buffer_state state);
int coda_h264_padding(int size, char *p);
bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);