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v4l2videodec: add gst_v4l2_decoder_cmd helper

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=733864
This commit is contained in:
Peter Seiderer 2014-12-12 14:31:36 +01:00 committed by Nicolas Dufresne
parent 24862c2f74
commit ddf7d9d6de
1 changed files with 31 additions and 0 deletions
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31
sys/v4l2/gstv4l2videodec.c
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@ -293,6 +293,37 @@ gst_v4l2_video_dec_negotiate (GstVideoDecoder * decoder)
return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
}
static gboolean
gst_v4l2_decoder_cmd (GstV4l2Object * v4l2object, guint cmd, guint flags)
{
struct v4l2_decoder_cmd dcmd = { 0, };
GST_DEBUG_OBJECT (v4l2object->element,
"sending v4l2 decoder command %u with flags %u", cmd, flags);
if (!GST_V4L2_IS_OPEN (v4l2object))
return FALSE;
dcmd.cmd = cmd;
dcmd.flags = flags;
if (v4l2_ioctl (v4l2object->video_fd, VIDIOC_DECODER_CMD, &dcmd) < 0)
goto dcmd_failed;
return TRUE;
dcmd_failed:
if (errno == ENOTTY) {
GST_INFO_OBJECT (v4l2object->element,
"Failed to send decoder command %u with flags %u for '%s'. (%s)",
cmd, flags, v4l2object->videodev, g_strerror (errno));
} else {
GST_ERROR_OBJECT (v4l2object->element,
"Failed to send decoder command %u with flags %u for '%s'. (%s)",
cmd, flags, v4l2object->videodev, g_strerror (errno));
}
return FALSE;
}
static GstFlowReturn
gst_v4l2_video_dec_finish (GstVideoDecoder * decoder)
{