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sys/v4l2/gstv4l2src.c: Initialize num_buffers with minimum value.

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Original commit message from CVS:
* sys/v4l2/gstv4l2src.c: (gst_v4l2src_init):
Initialize num_buffers with minimum value.
* sys/v4l2/v4l2src_calls.c: (gst_v4l2src_fill_format_list),
(gst_v4l2src_probe_caps_for_format), (gst_v4l2src_grab_frame):
Handle frame-size query failure gracefully.
This commit is contained in:
Stefan Kost 2007-07-17 11:35:29 +00:00
parent 82d3eca90b
commit 5d60a17f4a
4 changed files with 33 additions and 12 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2007-07-17 Stefan Kost <ensonic@users.sf.net>
* sys/v4l2/gstv4l2src.c: (gst_v4l2src_init):
Initialize num_buffers with minimum value.
* sys/v4l2/v4l2src_calls.c: (gst_v4l2src_fill_format_list),
(gst_v4l2src_probe_caps_for_format), (gst_v4l2src_grab_frame):
Handle frame-size query failure gracefully.
2007-07-16 Wim Taymans <wim.taymans@gmail.com>
* gst/qtdemux/qtdemux.c: (qtdemux_parse_node):

2
common

@ -1 +1 @@
Subproject commit fb4b30ebbec59a8944cacae5fb5cf40bff5dfcaa
Subproject commit b3fe2a25c1cd0f4b021795d0db7330aeb338da7c

4
sys/v4l2/gstv4l2src.c
View file

@ -298,7 +298,7 @@ gst_v4l2src_init (GstV4l2Src * v4l2src, GstV4l2SrcClass * klass)
gst_v4l2_get_input, gst_v4l2_set_input, NULL);
/* number of buffers requested */
v4l2src->num_buffers = 0;
v4l2src->num_buffers = 2;
v4l2src->formats = NULL;
@ -324,6 +324,7 @@ gst_v4l2src_dispose (GObject * object)
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_v4l2src_finalize (GstV4l2Src * v4l2src)
{
@ -332,6 +333,7 @@ gst_v4l2src_finalize (GstV4l2Src * v4l2src)
G_OBJECT_CLASS (parent_class)->finalize ((GObject *) (v4l2src));
}
static void
gst_v4l2src_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)

30
sys/v4l2/v4l2src_calls.c
View file

@ -379,6 +379,7 @@ gst_v4l2src_fill_format_list (GstV4l2Src * v4l2src)
v4l2src->formats = g_slist_prepend (v4l2src->formats, format);
}
v4l2src->formats = g_slist_reverse (v4l2src->formats);
GST_DEBUG_OBJECT (v4l2src, "got %d format(s)", n);
return TRUE;
/* ERRORS */
@ -560,9 +561,10 @@ GstCaps *
gst_v4l2src_probe_caps_for_format (GstV4l2Src * v4l2src, guint32 pixelformat,
const GstStructure * template)
{
#ifdef VIDIOC_ENUM_FRAMESIZES
GstCaps *ret;
GstStructure *tmp;
#ifdef VIDIOC_ENUM_FRAMESIZES
gint fd = v4l2src->v4l2object->video_fd;
struct v4l2_frmsizeenum size;
guint32 w, h;
@ -629,18 +631,17 @@ enum_framesizes_failed:
GST_DEBUG_OBJECT (v4l2src,
"Failed to enumerate frame sizes for pixelformat %" GST_FOURCC_FORMAT
" (%s)", GST_FOURCC_ARGS (pixelformat), g_strerror (errno));
return NULL;
goto default_frame_sizes;
}
unknown_type:
{
GST_WARNING_OBJECT (v4l2src,
"Unknown frame sizeenum type for pixelformat %" GST_FOURCC_FORMAT
": %u", GST_FOURCC_ARGS (pixelformat), size.type);
return NULL;
goto default_frame_sizes;
}
#else /* defined VIDIOC_ENUM_FRAMESIZES */
GstCaps *ret;
GstStructure *tmp;
default_frame_sizes:
#endif /* defined VIDIOC_ENUM_FRAMESIZES */
/* This code is for Linux < 2.6.19 */
@ -653,7 +654,6 @@ unknown_type:
(gint) 1, (gint) 100, (gint) 1, NULL);
gst_caps_append_structure (ret, tmp);
return ret;
#endif /* defined VIDIOC_ENUM_FRAMESIZES */
}
/******************************************************
@ -710,9 +710,17 @@ gst_v4l2src_grab_frame (GstV4l2Src * v4l2src, GstBuffer ** buf)
else {
*/
GST_DEBUG_OBJECT (v4l2src, "reenqueing buffer");
if (ioctl (v4l2src->v4l2object->video_fd, VIDIOC_QBUF, &buffer) < 0) {
goto qbuf_failed;
}
/* FIXME: this is not a good idea, as drivers usualy return the buffer
* with index-number set to 0, thus the re-enque will fail unless it
* was incidentialy 0.
* We could try to re-enque all buffers without handling the ioctl
* return.
*/
/*
if (ioctl (v4l2src->v4l2object->video_fd, VIDIOC_QBUF, &buffer) < 0) {
goto qbuf_failed;
}
*/
/*} */
}
break;
@ -820,6 +828,7 @@ too_many_trials:
NUM_TRIALS, v4l2src->v4l2object->videodev, g_strerror (errno)));
return GST_FLOW_ERROR;
}
/*
qbuf_failed:
{
GST_ELEMENT_ERROR (v4l2src, RESOURCE, WRITE,
@ -829,6 +838,7 @@ qbuf_failed:
v4l2src->v4l2object->videodev, g_strerror (errno)));
return GST_FLOW_ERROR;
}
*/
}