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authorRobert Krakora <rob.krakora@messagenetsystems.com>2013-08-19 15:31:51 -0400
committerTim-Philipp Müller <tim@centricular.net>2013-08-21 13:58:09 +0100
commit05183675077d502aaf0e7483656f5610bb4d0f43 (patch)
tree6b98da3d5e82f3cd2112acb5cfa723544126ed81
parent7d5b8e37287699c434628c63a35258f0f9619fe3 (diff)
uvch264src: don't error out on incomplete aux data segment0.10
It appears that the Logitech C920 sometimes drops the next to last segment of RAW aux data contained within the MJPEG container. H264 data that is multiplexed with in the same container does not appear to be affected. This appears to be a bug in the Logitech C920 firmware and uvch264src should not error out in this case. Sometimes it can take 24 hours of continuous streaming for the problem to occur, but sometimes it takes only a couple of hours. https://bugzilla.gnome.org/show_bug.cgi?id=706276
-rwxr-xr-x[-rw-r--r--]sys/uvch264/gstuvch264_mjpgdemux.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/sys/uvch264/gstuvch264_mjpgdemux.c b/sys/uvch264/gstuvch264_mjpgdemux.c
index 4bc689981..75ba5153d 100644..100755
--- a/sys/uvch264/gstuvch264_mjpgdemux.c
+++ b/sys/uvch264/gstuvch264_mjpgdemux.c
@@ -473,6 +473,7 @@ gst_uvc_h264_mjpg_demux_chain (GstPad * pad, GstBuffer * buf)
guint i;
guchar *data;
guint size;
+ guint16 segment_size = 0;
self = GST_UVC_H264_MJPG_DEMUX (GST_PAD_PARENT (pad));
@@ -488,7 +489,6 @@ gst_uvc_h264_mjpg_demux_chain (GstPad * pad, GstBuffer * buf)
for (i = 0; i < size - 1; i++) {
/* Check for APP4 (0xe4) marker in the jpeg */
if (data[i] == 0xff && data[i + 1] == 0xe4) {
- guint16 segment_size;
/* Sanity check sizes and get segment size */
if (i + 4 >= size) {
@@ -683,9 +683,10 @@ gst_uvc_h264_mjpg_demux_chain (GstPad * pad, GstBuffer * buf)
jpeg_it = NULL;
if (aux_buf != NULL) {
- GST_ELEMENT_ERROR (self, STREAM, DEMUX,
- ("Incomplete auxiliary stream. %d bytes missing", aux_size), (NULL));
- ret = GST_FLOW_ERROR;
+ GST_DEBUG_OBJECT (self, "Incomplete auxiliary stream: %d bytes missing, "
+ "%d segment size remaining -- missing segment, C920 bug?",
+ aux_size, segment_size);
+ ret = GST_FLOW_OK;
goto done;
}