[Bug 752573] ximagesrc+pulsesrc dropped samples
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Sun Jul 19 23:53:51 PDT 2015
https://bugzilla.gnome.org/show_bug.cgi?id=752573
--- Comment #2 from Francesco Frassinelli <fraph24 at gmail.com> ---
(In reply to Tim-Philipp Müller from comment #1)
> Not clear to me that this is a bug in GStreamer (other than ximagesrc
> performance being poor perfhaps).
I decided to report this bug after many tests because none of my cpu cores goes
to 90~100 %, so I though that it could be something not related with
performances (it happens even if I reduce the framerate).
> Have you tried making the audio queue after pulsesrc unlimited, e.g. queue
> max-size-bytes=0 max-size-buffers=0 max-size-time=0 ?
Yes, and the error disappears. Many video frames are still dropped:
$ LC_ALL=C GST_DEBUG="*:3" gst-launch-1.0 filesrc location=meeting.ogv !
decodebin ! autovideosink
Setting pipeline to PAUSED ...
libva info: VA-API version 0.38.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib64/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_38
libva info: va_openDriver() returns 0
0:00:00.026917898 3004 0x2603760 WARN basesrc
gstbasesrc.c:3470:gst_base_src_start_complete:<filesrc0> pad not activated yet
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
0:00:05.311774556 3004 0x7f8774002d40 WARN theoradec
gsttheoradec.c:737:theora_handle_data_packet:<theoradec0> dropping frame
because of QoS
0:00:05.311948733 3004 0x7f8774002d40 WARN videodecoder
gstvideodecoder.c:2503:gst_video_decoder_prepare_finish_frame:<theoradec0>
decreasing timestamp (0:00:02.640000000 < 0:00:05.160000000)
0:00:05.531908640 3004 0x7f8774002d40 WARN theoradec
gsttheoradec.c:737:theora_handle_data_packet:<theoradec0> dropping frame
because of QoS
0:00:05.531942533 3004 0x7f8774002d40 WARN videodecoder
gstvideodecoder.c:2503:gst_video_decoder_prepare_finish_frame:<theoradec0>
decreasing timestamp (0:00:02.920000000 < 0:00:05.400000000)
0:00:06.047547359 3004 0x7f8774002d40 WARN theoradec
gsttheoradec.c:737:theora_handle_data_packet:<theoradec0> dropping frame
because of QoS
0:00:06.047607410 3004 0x7f8774002d40 WARN videodecoder
gstvideodecoder.c:2503:gst_video_decoder_prepare_finish_frame:<theoradec0>
decreasing timestamp (0:00:03.480000000 < 0:00:05.920000000)
0:00:06.447494394 3004 0x7f8774002d40 WARN theoradec
gsttheoradec.c:737:theora_handle_data_packet:<theoradec0> dropping frame
because of QoS
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