mpeg-2 to mpeg-4

[Martijn Grendelman]

On 21-03-12 12:35, prototype18 wrote:
> Oh right, thanks for correcting me, 
> And i wanna say that i have tried only video with this pipeline
> 
> gst-launch filesrc location=sample_mpeg2.mpg ! mpegdemux name=demux
> demux.video_00 ! ffdec_mpeg2video ! queue ! x264enc ! mp4mux name=mux !
> queue ! filesink location=output.mp4
> 
> and it works perfectly, but when i am trying to decode and encode audio
> then sink both, process never ends.
> It seems to me that maybe my plugins of decoding and encoding audio stream
> are good or maybe i am doing something wrong. 
> Here is what i am talking about, 
> This one does not work for me! 
> 
> gst-launch -v filesrc location= sample_mpeg2.mpg ! mpegdemux name=demux
> demux.video_00 ! ffdec_mpeg2video ! queue ! x264enc ! queue ! mp4mux
> name=mux ! filesink location=mpeg4_sample.mp4 demux.audio_00 ! ffdec_mp3 !
> queue ! faac ! queue ! mux.

I have seen that too, pipeline doesn't PREROLL. Add

! audioconvert ! audioresample

between ffdec_mp3 and faac, that seemed to make a difference.

Cheers,
Martijn.



> 
> 
> 2012/3/21 Martijn Grendelman [via GStreamer-devel] <[hidden email]
> </user/SendEmail.jtp?type=node&node=4492012&i=0>>
> 
>     On 20-03-12 13:21, prototype18 wrote:
>     > Hello everyone, i want to read mpeg-2 file demux it encode
>     video(h262 to
>     > raw), encode audio(mp3 to raw) then decode video(raw to h264) decode
>     > audio(raw to aac) mux it and sink it as mp4 file. But every time i
>     stuck in
>     > encoding and decoding video and audio. I need to create pipe which
>     will do
>     > all this job. Pleas help me
> 
>     It seems to me you have the terms 'encode' and 'decode' mixed up.
> 
>     What pipeline(s) have you tried so far?
> 
>     It shouldn't be very difficult, something along the lines of:
> 
>     gst-launch -v uridecodebin uri=file:///... name=decode ! queue !
>     ffmpegcolorspace ! x264enc ! queue ! mux. decode. ! queue !
>     audioconvert !
>     audioresample ! faac ! queue ! mux. ffmux_mp4 name=mux ! filesink
>     location=...
> 
>     Cheers,
>     Martijn.
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