[gst-devel] FW: ffmux_asf Query

[thiagoss]

On Mon, Sep 22, 2008 at 4:37 AM, Irfan Shaikh
<irfanshaikh at tataelxsi.co.in>wrote:

>
> Hi ved,
>
>         As per ur suggestions i hav been trying to use ffmux_asf. I hav
> been
> looking into the source code of ffmpegs muxer code.
>
> I have been trying to mux the videotestsrc and audiotestsrc using
> ffmux_asf.
> but i am not able to get any output file.
> Will you please help to achieve o/p ASF file.
>
> I used,
>
>         gst-launch audiotestsrc ! ffenc_g726 ! queue ! mux.audio_0
> videotestsrc ! ffdec_mpeg4 ! queue ! mux.video_0 ffmux_asf name=mux !
> filesink location=/root/Desktop/vidaud.asf
>
This is wrong "videotestsrc ! ffdec_mpeg4", videotestsrc does not generate
mpeg4 video streams. I suppose you were trying to use ffenc_mpeg4. Right?
Even so, ffmux_asf caps are not compatible with ffenc_mpeg4.

>
>
> This is also not working, Please help me regarding this pipeline if this
> works i fine i will be half way through,
> Since i can conclude if i use appropiate encoders for file formats needs to
> be supported ffmux_asf can work properly.
>
> Will finish going through the source code by Evening so as to be more clear
> about ffmux_asf plug-in.
>
> Regards,
> Irfan
>
>
>
>
> -----Original Message-----
> From: ved kpl [mailto:ved.kpl at gmail.com <ved.kpl at gmail.com>]
> Sent: Friday, September 19, 2008 11:13 AM
> To: irfanshaikh at tataelxsi.co.in
> Cc: Discussion of the development of GStreamer
> Subject: Re: ffmux_asf Query
>
>
> HI,
>
> Is the dat file elementary stream or some container format?. If its
> just an elementary stream then u need a parse ( h264parse) in between.
>  (filesrc ! 'video/x-h264' ! h264parse ! ... ) . But then its  a DAT
> file, so probably you need to strip off the unwanted bytes in it
> before giving it to h264parse. ffmux_asf , guess does not take h264 so
> add h264 decoder and supported encoder also.
>
> What mpeg4 data does mpeg4_mp3.asf have? Check the formats that
> ffmux_asf supports.
>
> Ved
>
> On Fri, Sep 19, 2008 at 10:39 AM, irfanshaikh
> <irfanshaikh at tataelxsi.co.in> wrote:
> >
> > Hi Ved,
> >
> > 1) As you replied, reading the elementary stream from file directly
> (filesrc
> > ! mux),wont work. The filesrc wont attach any caps and no timestamp to
> the
> > buffer and of course no parsed data.
> >
> > For the following:
> >        gst-launch filesrc location=/root/Desktop/audioVideo/CodecH264.dat
> !
> > ffmux_asf ! filesink    location=/root/Desktop/ajit1.asf
> >
> > Can i know the alternative ? Or else if it is the implementation issue,
> can
> > you suggest me where all in the plugin-code{functions} do i have to make
> > changes so as i can be able to mux the audio/video data from the encoded
> > audio/video files.
> >
> > Above issue is more critical to me. I would be thankful to you a lot.
> >
> >
> > 2)[root at localhost ffmpeg]# gst-launch filesrc
> > location=/root/Desktop/teststreams/mpeg4/mpeg4_mp3.ASF ! asfdemux
> name=demux
> > demux.audio_00 ! queue ! mux.audio_0 demux.video_00 ! queue ! mux.video_0
> > ffmux_asf name=mux ! filesink   location=/root/Desktop/test2.asf
> >
> >        I hav tried using asfdemux but yet i am not able to MUX the
> audiodata.I am
> > getting the o/p file of zero bytes.
> >
> > THANKING YOU,
> >
> > Regards,
> > Irfan.
> >
> >
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-- 
Thiago Sousa Santos

Embedded Systems and Pervasive Computing Lab (Embedded)
Center of Electrical Engineering and Informatics (CEEI)
Federal University of Campina Grande (UFCG)
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