Playing MJPEG format using gstreamer gives multipart error

[Mailing List SVR]

Il 29/12/2014 10:39, deepthips ha scritto:
> I need to play mjpeg file using this pipeline:
> souphttpsrc -> multipartdemux ! jpegdec ! ffmpegcolorspace -> <xyzSink>
>
> For this testing, I used the below pipeline:
>
> gst-launch-0.10  filesrc location=test.mjpeg ! multipartdemux ! jpegdec !
> ffmpegcolorspace
>
> But it gives following  error :
>
> gst-launch-0.10  filesrc location=test.mjpeg ! multipartdemux ! jpegdec !
> ffmpegcolorspace
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLED ...
> ERROR: from element
> /GstPipeline:pipeline0/GstMultipartDemux:multipartdemux0: Could not
> demultiplex stream.
> Additional debug info:
> multipartdemux.c(480): multipart_parse_header ():
> /GstPipeline:pipeline0/GstMultipartDemux:multipartdemux0:
> Boundary not found in the multipart header
> ERROR: pipeline doesn't want to preroll.
> Setting pipeline to PAUSED ...
> Setting pipeline to READY ...
> Setting pipeline to NULL ...
> Freeing pipeline ...

this error means that this is not a multipart file

>
> I tried different streams (avi with mjpeg), but got same error. It gives
> same error if I use filesrc or souphttpsrc or filesink. Please advise.

if you have avi with mjpeg you should use avidemux, multipartdemux 
expect something like this:

--boundary
Content-Type: image/jpeg
Content-Length: xxxx

<jpeg image, xxxx bytes>
--boundary
Content-Type: image/jpeg
Content-Length: yyyy

<jpeg image, yyyy bytes>
......

Nicola


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