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v4l2src: Fix support for mpegts streams

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It seems that GStreamer's mpegts elements (tsdemux, tsparse) require caps
`video/mpegts,systemstream=true`.  As far as I can see the significance
of systemstream is to indicate that this is a container format rather than
an elementary stream.  As this is the case (and I can't understand how it
could not be the case with mpegts) I add systemstream=true to v4l2src's
caps.

This allows v4l2src to be linked with tsdemux for playback from my
Hauppauge HD-PVR with the pipeline:

    v4l2src ! queue ! tsdemux ! video/x-h264 ! decodebin ! xvimagesink

In combination with the next commit this fixes using Hauppauge HD-PVR with
GStreamer 1.0+.
This commit is contained in:
William Manley 2014-03-29 17:21:17 -04:00 committed by Nicolas Dufresne
parent 4d0e1a4536
commit 517f50f54f
1 changed files with 2 additions and 1 deletions
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3
sys/v4l2/gstv4l2object.c
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@ -1232,7 +1232,8 @@ gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc)
NULL); NULL);
break; break;
case V4L2_PIX_FMT_MPEG: /* MPEG */ case V4L2_PIX_FMT_MPEG: /* MPEG */
structure = gst_structure_new_empty ("video/mpegts"); structure = gst_structure_new ("video/mpegts",
"systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
break; break;
case V4L2_PIX_FMT_WNVA: /* Winnov hw compres */ case V4L2_PIX_FMT_WNVA: /* Winnov hw compres */
break; break;