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v4l2videodec: add some useful debug messages

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Add a couple of useful debug traces , they happened to be useful to
debug/investigate a 4K video playback issue with v4l2, so let's make these
changes more permanent.

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>

https://bugzilla.gnome.org/show_bug.cgi?id=785109
This commit is contained in:
Nicolas Dechesne 2017-07-19 10:42:46 +02:00 committed by Nicolas Dufresne
parent 6d0a9abdf0
commit 52c017caca
1 changed files with 3 additions and 0 deletions
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3
sys/v4l2/gstv4l2videodec.c
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@ -580,12 +580,14 @@ gst_v4l2_video_dec_handle_frame (GstVideoDecoder * decoder,
/* Create caps from the acquired format, remove the format field */
acquired_caps = gst_video_info_to_caps (&info);
GST_DEBUG_OBJECT (self, "Acquired caps: %" GST_PTR_FORMAT, acquired_caps);
st = gst_caps_get_structure (acquired_caps, 0);
gst_structure_remove_field (st, "format");
/* Probe currently available pixel formats */
available_caps = gst_v4l2_object_probe_caps (self->v4l2capture, NULL);
available_caps = gst_caps_make_writable (available_caps);
GST_DEBUG_OBJECT (self, "Available caps: %" GST_PTR_FORMAT, available_caps);
/* Replace coded size with visible size, we want to negotiate visible size
* with downstream, not coded size. */
@ -593,6 +595,7 @@ gst_v4l2_video_dec_handle_frame (GstVideoDecoder * decoder,
filter = gst_caps_intersect_full (available_caps, acquired_caps,
GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (self, "Filtered caps: %" GST_PTR_FORMAT, filter);
gst_caps_unref (acquired_caps);
gst_caps_unref (available_caps);
caps = gst_pad_peer_query_caps (decoder->srcpad, filter);