handling multiple audio streams
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Hi all,
I am writing an application to transcode TS file into h264 and aac format and store the transcoded file. The application works fine with the input files which have one video and audio stream. If I have more than 1 audio files I still want to transcode all the audio streams into aac format and store them in a single file. Could someone help me to handle ore than 1 audio streams? I am currently using the below pipeline : gst-launch-0.10 uridecodebin uri=file://in-file.ts name=d d. ! queue ! audioconvert ! faac ! ffmux_mp4 name=mux ! filesink location=~/Desktop/h264-aac/out-file.mp4 d. ! queue ! ffmpegcolorspace ! x264enc pass=qual quantizer=16 ref=3 subme=6 analyse=p4x4 me=umh ! mux. I get the following warning messages while running the above pipeline: Setting pipeline to PAUSED ... Pipeline is PREROLLING ... WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No decoder available for type 'application/x-mpegts-private-section'. Additional debug info: gsturidecodebin.c(589): unknown_type_cb (): /GstPipeline:pipeline0/GstURIDecodeBin:d WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No decoder available for type 'application/x-mpegts-private-section'. Additional debug info: gsturidecodebin.c(589): unknown_type_cb (): /GstPipeline:pipeline0/GstURIDecodeBin:d WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No decoder available for type 'application/x-mpegts-private-section'. Additional debug info: gsturidecodebin.c(589): unknown_type_cb (): /GstPipeline:pipeline0/GstURIDecodeBin:d WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No decoder available for type 'application/x-mpegts-private-section'. Additional debug info: gsturidecodebin.c(589): unknown_type_cb (): /GstPipeline:pipeline0/GstURIDecodeBin:d WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No decoder available for type 'application/x-mpegts-private-section'. Additional debug info: gsturidecodebin.c(589): unknown_type_cb (): /GstPipeline:pipeline0/GstURIDecodeBin:d WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No decoder available for type 'private/teletext'. Additional debug info: gsturidecodebin.c(589): unknown_type_cb (): /GstPipeline:pipeline0/GstURIDecodeBin:d Best Regards, Jyoti ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
Re: handling multiple audio streams
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On Mon, 2009-02-23 at 13:53 +0530, Jyoti D wrote:
> I am writing an application to transcode TS file into h264 and aac > format and store the transcoded file. > The application works fine with the input files which have one video > and audio stream. > If I have more than 1 audio files I still want to transcode all the > audio streams into aac format and store them in a single file. > > Could someone help me to handle ore than 1 audio streams? > > I am currently using the below pipeline : > > gst-launch-0.10 uridecodebin uri=file://in-file.ts name=d d. ! queue ! > audioconvert ! faac ! ffmux_mp4 name=mux ! filesink > location=~/Desktop/h264-aac/out-file.mp4 d. ! queue ! > ffmpegcolorspace ! x264enc pass=qual quantizer=16 ref=3 subme=6 > analyse=p4x4 me=umh ! mux. With gst-launch, you need to know how many streams there are in the input stream in advance, and specify a transcoding path (d. ! queue ! ..) for each audio and video stream you want to transcode. You can't have a generic pipeline which handles all cases, because if there is only one audio stream but you specified multiple audio transcoding paths, then gst-launch will hang/wait forever for the other audio pads. In other words: you need to write code to handle this. > I get the following warning messages while running the above pipeline: > > Setting pipeline to PAUSED ... > Pipeline is PREROLLING ... > WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No > decoder available for type 'application/x-mpegts-private-section'. > Additional debug info: > gsturidecodebin.c(589): unknown_type_cb > (): /GstPipeline:pipeline0/GstURIDecodeBin:d > WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No > decoder available for type 'application/x-mpegts-private-section'. > Additional debug info: > gsturidecodebin.c(589): unknown_type_cb > (): /GstPipeline:pipeline0/GstURIDecodeBin:d > WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No > decoder available for type 'application/x-mpegts-private-section'. > Additional debug info: > gsturidecodebin.c(589): unknown_type_cb > (): /GstPipeline:pipeline0/GstURIDecodeBin:d > WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No > decoder available for type 'application/x-mpegts-private-section'. > Additional debug info: > gsturidecodebin.c(589): unknown_type_cb > (): /GstPipeline:pipeline0/GstURIDecodeBin:d > WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No > decoder available for type 'application/x-mpegts-private-section'. > Additional debug info: > gsturidecodebin.c(589): unknown_type_cb > (): /GstPipeline:pipeline0/GstURIDecodeBin:d > WARNING: from element /GstPipeline:pipeline0/GstURIDecodeBin:d: No > decoder available for type 'private/teletext'. > Additional debug info: > gsturidecodebin.c(589): unknown_type_cb > (): /GstPipeline:pipeline0/GstURIDecodeBin:d I don't think those are fatal or related to your problem. You can probably ignore them. Cheers -Tim ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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Thanks Tim
On Wed, Feb 25, 2009 at 2:48 PM, Tim-Philipp Müller <[hidden email]> wrote:
------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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