[gst-devel] H.264 over MPEG2-TS

[Navneet Jagannathan]

Great! 

Another suggestion. A very useful property for an MPEG-TS demuxer to
have would a "video/audio pid" property which specifies the particuar
pid to be forwarded by the demultiplexer to the next element (since the
TS can potentially carry multiple video/audio/data streams).

On Thu, 2006-05-04 at 14:42 +0200, Christian Fredrik Kalager Schaller
wrote:
> Hi,
> I found this clip online:
> http://www.mentasm.com/h264_1.mpg
> 
> Which seems to be h264 in mpeg2-ts. So we will use it for testing and
> getting things working on flutsdemux.
> 
> Christian
> 
> On Thu, 2006-05-04 at 18:30 +0800, Navneet Jagannathan wrote:
> > You should be able to get some AVI clips here (containing H.264 video)
> > http://www.vsofts.com/h264/videoclips.html
> > 
> > I guess you could extract the video using gstreamer and encode it using
> > ffmpeg ("ffmpeg -f h264 -i inputFile.h264 -f mpegts outputfile.ts", I
> > think)
> > 
> > Regards,
> > Navneet
> > 
> > 
> > 
> > On Thu, 2006-05-04 at 12:22 +0200, Christian Fredrik Kalager Schaller
> > wrote:
> > > Hi,
> > > No the MPEG2 demuxer doesn't support MPEG4 yet, but if anyone can
> > > provide us with some good test files we are willing to look into it. 
> > > 
> > > Sincerely,
> > > Christian
> > > 
> > > 
> > > On Thu, 2006-05-04 at 16:58 +0800, Navneet Jagannathan wrote:
> > > > Hi,
> > > > 
> > > > I don't think the fluendo demuxer supports MPEG-4 yet. I have tried out
> > > > version 0.10.3. However, the ffmpeg demuxer 'ffdemux_mpegts' appears to
> > > > demux it successfully (it recognises the format/frame-rate etc
> > > > successfully). 
> > > > 
> > > > However the output of the demuxer freezes at the first frame for a
> > > > couple of my streams. I wasn't sure whether this was a result of a fault
> > > > in the demuxer, or an incorrect stream and hence my question regarding
> > > > valid H.264/MPEG2-TS streams.
> > > > 
> > > > Apart from the demuxer, I find the ffmpeg H.264 decoder element
> > > > 'ffdec_h264' also fails for supposedly 'valid' raw H.264 streams with
> > > > the following message:
> > > > 
> > > > "....
> > > > ERROR: from element /pipeline0/ffdec_h2640: Internal GStreamer error:
> > > > negotiation problem. 
> > > > ffdec_h264: input format was not set before data start
> > > > ERROR: pipeline doesn't want to preroll.
> > > > ..."
> > > > This was my pipeline:
> > > > "gst-launch-0.10 filesrc location="filename.h264" ! ffdec_h264 !
> > > > xvimagesink"
> > > > 
> > > > H.264 video inside an AVI container appears to work after passing
> > > > through the 'avidemux' element.
> > > > 
> > > > "gst-launch-0.10 filesrc location="filename.avi" ! avidemux name=d
> > > > {d.video_00 ! ffdec_h264 ! xvimagesink}"
> > > > 
> > > > 
> > > > In summary, it would be great if anyone could tell me the status of
> > > > H.264 support in gstreamer (stability-wise), and whether there are any
> > > > samples around that are known to play reliably.
> > > > 
> > > > Regards,
> > > > Navneet
> > > > 
> > > > 
> > > > On Thu, 2006-05-04 at 10:21 +0200, Stéphane LOEUILLET wrote:
> > > > > Hello,
> > > > > 
> > > > > I'd say he's looking for AAC ES encapsulated in MPEG2 TS like in DVB HD.
> > > > > 
> > > > > In usual DVB-S (Satelite), it's MPEG2 ES in MPEG2 TS. But with HD
> > > > > coming, there is still one MPEG2 TS per transponder and MPEG2 or MPEG4
> > > > > ES depending on the channel. (new ones in HD using MPEG4)
> > > > > 
> > > > > I suppose that fluendo MPEG demuxer is the plugin to look at.
> > > > > Early in its developement, I asked if adding MPEG4 ES to the list of
> > > > > supported encapsulated stream was planned.
> > > > > 
> > > > > Bye
> > > > > 
> > > > > Stéphane Loeuillet
> > > > > ��Rȧ:&q[yhv^yhipy
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> > > > 
> > > > 
> > > > 
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