[Interest] "Internal data stream error" when trying to play video file

[Jason H]

I get "Internal data stream error" all the time! I am using Android/QML mobile Cameras and the VideoOutput element



> Sent: Thursday, February 12, 2015 at 3:47 PM
> From: "Nikos Chantziaras" <realnc at gmail.com>
> To: interest at qt-project.org
> Subject: Re: [Interest] "Internal data stream error" when trying to play video file
>
> I now tried examples/multimedia/video/qmlvideo.
> 
> When I click the first time, "Internal data stream error." It doesn't play.
> 
> If I click again, it plays fine, and continues to play fine on all 
> subsequent attempts. But the first try on program start, it always fails :-/
> 
> Enabling full gstreamer debug output (setting GST_DEBUG="*:2") gives 
> this on the first attempt where it fails:
> 
> 
> $ GST_DEBUG="*:2" ./qmlvideo /tmp/video.mpg
> Failed to start video surface
> 0:00:00.830868311  1368      0x2c00280 WARN                  ffmpeg 
> /var/tmp/portage/media-plugins/gst-plugins-ffmpeg-0.10.13_p201211-r3/work/gst-ffmpeg-0.10.13_p201211/ext/ffmpeg/gstffmpegdec.c:2275:gst_ffmpegdec_frame:<ffdec_cinepak0> 
> ffdec_cinepak: decoding error (len: -1, have_data: 0)
> 0:00:00.830939490  1368      0x2bffca0 WARN                avidemux 
> /var/tmp/portage/media-libs/gst-plugins-good-0.10.31-r1/work/gst-plugins-good-0.10.31/gst/avi/gstavidemux.c:5212:gst_avi_demux_loop:<avidemux0> 
> error: Internal data stream error.
> 0:00:00.830958617  1368      0x2bffca0 WARN                avidemux 
> /var/tmp/portage/media-libs/gst-plugins-good-0.10.31-r1/work/gst-plugins-good-0.10.31/gst/avi/gstavidemux.c:5212:gst_avi_demux_loop:<avidemux0> 
> error: streaming stopped, reason not-linked
> 0:00:00.831172531  1368      0x2c00280 WARN                  ffmpeg 
> /var/tmp/portage/media-plugins/gst-plugins-ffmpeg-0.10.13_p201211-r3/work/gst-ffmpeg-0.10.13_p201211/ext/ffmpeg/gstffmpegdec.c:2275:gst_ffmpegdec_frame:<ffdec_cinepak0> 
> ffdec_cinepak: decoding error (len: -1, have_data: 0)
> 0:00:00.838421437  1368 0x7f170c00b190 WARN           basetransform 
> /var/tmp/portage/media-libs/gstreamer-0.10.36-r2/work/gstreamer-0.10.36/libs/gst/base/gstbasetransform.c:1739:gst_base_transform_prepare_output_buffer:<ffmpegcolorspace-vo> 
> pad-alloc failed: wrong-state
> 0:00:00.838439087  1368 0x7f170c00b190 WARN           basetransform 
> /var/tmp/portage/media-libs/gstreamer-0.10.36-r2/work/gstreamer-0.10.36/libs/gst/base/gstbasetransform.c:2548:gst_base_transform_handle_buffer:<ffmpegcolorspace-vo> 
> could not get buffer from pool: wrong-state
> qml: [qmlvideo] VideoItem.onError error 1 errorString Internal data 
> stream error.
> qml: [qmlvideo] Content.onFatalError
> Error: "Internal data stream error."
> 
> 
> The output on the subsequent attempts (they all succeed):
> 
> 
> 0:00:04.737457749  1396 0x7f8b2000acf0 WARN                  ffmpeg 
> /var/tmp/portage/media-plugins/gst-plugins-ffmpeg-0.10.13_p201211-r3/work/gst-ffmpeg-0.10.13_p201211/ext/ffmpeg/gstffmpegdec.c:2275:gst_ffmpegdec_frame:<ffdec_cinepak2> 
> ffdec_cinepak: decoding error (len: -1, have_data: 0)
> 0:00:04.738491738  1396 0x7f8b2000ade0 WARN                     bin 
> /var/tmp/portage/media-libs/gstreamer-0.10.36-r2/work/gstreamer-0.10.36/gst/gstbin.c:2395:gst_bin_do_latency_func:<playbin20> 
> did not really configure latency of 0:00:00.000000000
> 
> 
> Playing it manually with gst-launch-0.10 on the CLI does not give any 
> decoding warnings. Just:
> 
> 
> $ GST_DEBUG="*:2" gst-launch-0.10 playbin uri=file:///tmp/video.mpg
> 0:00:00.049918625  1427       0x87fb00 WARN                     bin 
> /var/tmp/portage/media-libs/gstreamer-0.10.36-r2/work/gstreamer-0.10.36/gst/gstbin.c:2395:gst_bin_do_latency_func:<playbin0> 
> did not really configure latency of 0:00:00.000000000
> 
> 
> On 12/02/15 21:09, Harri Pasanen wrote:
> > Cool video :)
> >
> > It plays just fine on my Qt 5.4.x linux installation using QML MediaPlayer.
> >
> > Just my 2 cents,
> >
> > Harri
> >
> > On 12/02/2015 19:00, Nikos Chantziaras wrote:
> >> On 12/02/15 19:57, Nikos Chantziaras wrote:
> >>> [...]
> >>> When trying to play a video file, QMediaPlayer raises an error:
> >>>
> >>>       Error: "Internal data stream error."
> >>>
> >>> [,,,]
> >>> If I play the file manually with gstreamer:
> >>>
> >>>       $ gst-launch-0.10 playbin uri=file:///tmp/video.mpg
> >>>
> >>> it plays just fine.
> >> This is the video file:
> >>
> >>      http://wikisend.com/download/489786/video.mpg
> >>
> >> (I hope that site works.)
> >>
> >> _______________________________________________
> >> Interest mailing list
> >> Interest at qt-project.org
> >> http://lists.qt-project.org/mailman/listinfo/interest
> >
> 
> 
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