[gst-devel] Cannot save H.264 bitstream in QuickTime (qtmux) file, error "failed to determine the time to mux"

[thiagoss]

On Tue, Oct 20, 2009 at 3:15 PM, Yiliang Bao <yiliangb at gmail.com> wrote:

>
> Following is the pipeline I used:
>
> gst-launch -e v4l2src ! ffmpegcolorspace ! x264enc ! qtmux ! filesink
> location=a.mov
>
> The output from gst-launch is:
>
> ERROR: from element /GstPipeline:pipeline0/GstQTMux:qtmux0: Could not
> multiplex stream.
> Additional debug info:
> gstqtmux.c(1107): gst_qt_mux_add_buffer ():
> /GstPipeline:pipeline0/GstQTMux:qtmux0:
> Failed to determine time to mux.
> Execution ended after 416709785 ns.
>
> I also tried the following 2 pipelines and both of them are working fine.
>
> gst-launch -e v4l2src ! ffmpegcolorspace ! qtmux ! filesink location=a.mov
> gst-launch filesrc location=Videos/g.mov ! decodebin ! ffmpegcolorspace !
> x264enc ! qtmux ! filesink location=a.mov
>
> I have tried both webcam and TV capture card as the capture device, but got
> the same result.
>
> Has anyone seen similar problem before? I found one post reporting the same
> problem, but there was no followup.
>
> http://www.nabble.com/rtsp---h264---mp4mux-td23866919.html#a23937937


This issue has already been fixed in current git (it was a v4l2src issue).
You can backport the change
(commit 72af90ae31907964b31c368164ec17d0f72aa7bf), upgrade to the git
version or wait a new -good release come out.

Maybe adding a videorate after v4l2src will also make it work.


>
> Thanks!
>
> Yiliang
>
> --
> View this message in context:
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> Sent from the GStreamer-devel mailing list archive at Nabble.com.
>
>
>
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-- 
Thiago Sousa Santos
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