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v4l2: remove unused code.

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This commit is contained in:
Wim Taymans 2012-09-06 10:42:21 +02:00
parent 148ab7539b
commit d154743949
1 changed files with 0 additions and 106 deletions
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106
sys/v4l2/gstv4l2object.c
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@ -2501,112 +2501,6 @@ done:
return TRUE; return TRUE;
} }
#if 0
static GstFlowReturn
gst_v4l2_object_get_mmap (GstV4l2Object * v4l2object, GstBuffer ** buf)
{
GstFlowReturn res;
#define NUM_TRIALS 50
GstBufferPool *pool;
gint32 trials = NUM_TRIALS;
GstBuffer *pool_buffer;
gboolean need_copy;
pool = v4l2object->pool;
if (!pool)
goto no_buffer_pool;
GST_DEBUG_OBJECT (v4l2object->element, "grab frame");
for (;;) {
if ((res = gst_v4l2_object_poll (v4l2object)) != GST_FLOW_OK)
goto poll_error;
res = gst_buffer_pool_acquire_buffer (pool, &pool_buffer, NULL);
if (res != GST_FLOW_OK)
goto no_buffer;
if (v4l2object->size > 0) {
gsize size = gst_buffer_get_size (pool_buffer);
/* if size does not match what we expected, try again */
if (size != v4l2object->size) {
GST_ELEMENT_WARNING (v4l2object->element, RESOURCE, READ,
(_("Got unexpected frame size of %u instead of %u."),
size, v4l2object->size), (NULL));
gst_buffer_unref (pool_buffer);
goto no_buffer;
}
}
/* when we get here all is fine */
break;
no_buffer:
GST_WARNING_OBJECT (v4l2object->element, "trials=%d", trials);
/* if the sync() got interrupted, we can retry */
switch (errno) {
case EINVAL:
case ENOMEM:
/* fatal */
return GST_FLOW_ERROR;
case EAGAIN:
case EIO:
case EINTR:
default:
/* try again, until too many trials */
break;
}
/* check nr. of attempts to capture */
if (--trials == -1) {
goto too_many_trials;
}
}
/* if we are handing out the last buffer in the pool, we need to make a
* copy and bring the buffer back in the pool. */
need_copy = v4l2object->always_copy
|| !gst_v4l2_buffer_pool_available_buffers (pool);
if (G_UNLIKELY (need_copy)) {
if (!v4l2object->always_copy) {
GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, v4l2object->element,
"running out of buffers, making a copy to reuse current one");
}
*buf = gst_buffer_copy (pool_buffer);
/* this will requeue */
gst_buffer_unref (pool_buffer);
} else {
*buf = pool_buffer;
}
return GST_FLOW_OK;
/* ERRORS */
no_buffer_pool:
{
GST_DEBUG_OBJECT (v4l2object->element, "no buffer pool");
return GST_FLOW_FLUSHING;
}
poll_error:
{
return res;
}
too_many_trials:
{
GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, FAILED,
(_("Failed trying to get video frames from device '%s'."),
v4l2object->videodev),
(_("Failed after %d tries. device %s. system error: %s"),
NUM_TRIALS, v4l2object->videodev, g_strerror (errno)));
return GST_FLOW_ERROR;
}
}
#endif
gboolean gboolean
gst_v4l2_object_copy (GstV4l2Object * v4l2object, GstBuffer * dest, gst_v4l2_object_copy (GstV4l2Object * v4l2object, GstBuffer * dest,
GstBuffer * src) GstBuffer * src)