mpegtsmux fails reason not-negotiated (-4)

[Thiago Santos]

On 04/05/2015 08:45 PM, Stefan de Konink wrote:
> Hi,
>
> I am trying a small example to use the mpegtsmux, which fails.
>
> gst-launch-1.0 -v -e videotestsrc ! mpeg2enc ! mpegtsmux name="muxer" 
> ! filesink location=single.ts
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0.GstPad:src: caps 
> = "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)320\,\ 
> height\=\(int\)240\,\ framerate\=\(fraction\)30/1\,\ 
> pixel-aspect-ratio\=\(fraction\)1/1\,\ 
> interlace-mode\=\(string\)progressive"
> /GstPipeline:pipeline0/GstMpeg2enc:mpeg2enc0.GstPad:src: caps = 
> "video/mpeg\,\ systemstream\=\(boolean\)false\,\ 
> mpegversion\=\(int\)1\,\ width\=\(int\)320\,\ height\=\(int\)240\,\ 
> framerate\=\(fraction\)30/1"
> /GstPipeline:pipeline0/GstMpeg2enc:mpeg2enc0.GstPad:sink: caps = 
> "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)320\,\ 
> height\=\(int\)240\,\ framerate\=\(fraction\)30/1\,\ 
> pixel-aspect-ratio\=\(fraction\)1/1\,\ 
> interlace-mode\=\(string\)progressive"
> ERROR: from element 
> /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0: Internal data 
> flow error.
> Additional debug info:
> /var/tmp/portage/media-libs/gstreamer-1.4.5/work/gstreamer-1.4.5/libs/gst/base/gstbasesrc.c(2933): 
> gst_base_src_loop (): 
> /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0:
> streaming task paused, reason not-negotiated (-4)
> ERROR: pipeline doesn't want to preroll.
> Setting pipeline to NULL ...
> /GstPipeline:pipeline0/GstMpeg2enc:mpeg2enc0.GstPad:src: caps = "NULL"
> /GstPipeline:pipeline0/GstMpeg2enc:mpeg2enc0.GstPad:sink: caps = "NULL"
> /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0.GstPad:src: caps 
> = "NULL"
> Freeing pipeline ...
>
>
>
> Without the muxer, I get output:
>
> gst-launch-1.0 -v -e videotestsrc ! mpeg2enc ! filesink 
> location=single.m2v
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0.GstPad:src: caps 
> = "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)320\,\ 
> height\=\(int\)240\,\ framerate\=\(fraction\)30/1\,\ 
> pixel-aspect-ratio\=\(fraction\)1/1\,\ 
> interlace-mode\=\(string\)progressive"
> /GstPipeline:pipeline0/GstMpeg2enc:mpeg2enc0.GstPad:src: caps = 
> "video/mpeg\,\ systemstream\=\(boolean\)false\,\ 
> mpegversion\=\(int\)1\,\ width\=\(int\)320\,\ height\=\(int\)240\,\ 
> framerate\=\(fraction\)30/1"
> /GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = 
> "video/mpeg\,\ systemstream\=\(boolean\)false\,\ 
> mpegversion\=\(int\)1\,\ width\=\(int\)320\,\ height\=\(int\)240\,\ 
> framerate\=\(fraction\)30/1"
> /GstPipeline:pipeline0/GstMpeg2enc:mpeg2enc0.GstPad:sink: caps = 
> "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)320\,\ 
> height\=\(int\)240\,\ framerate\=\(fraction\)30/1\,\ 
> pixel-aspect-ratio\=\(fraction\)1/1\,\ 
> interlace-mode\=\(string\)progressive"
> Pipeline is PREROLLED ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> ^Chandling interrupt.
> Interrupt: Stopping pipeline ...
> EOS on shutdown enabled -- Forcing EOS on the pipeline
> Waiting for EOS...
> Got EOS from element "pipeline0".
> EOS received - stopping pipeline...
> Execution ended after 0:00:01.383034379
> Setting pipeline to PAUSED ...
> Setting pipeline to READY ...
> Setting pipeline to NULL ...
> Freeing pipeline ...
>
>
> Using mpegpsmux, also results into output. Is there anything I am 
> overseeing?

Add mpegvideoparse before mpegtsmux, it needs parsed mpeg video input 
and mpeg2enc either doesn't produce parsed output or it doesn't announce 
it as being so.

>
> Stefan
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-- 
Thiago Sousa Santos
Senior Multimedia Engineer, Open Source Group
Samsung Research America - Silicon Valley