[gst-devel] HTTP pseudo-streaming

[Julien Moutte]

Hi Guys,

When implementing flvdemux I've made special efforts to parse the index
object in the metadata field.

Having this index, the demuxer is able to handle seeking with a HTTP 1.1
source element like neonhttpsrc.

So a simple pipeline like :

neonhttpsrc ! flvdemux ! queue ! ffdec_vp6f ! queue ! xvimagesink

should be able to do remote seeking using bytes range requests exactly
like a Google Video player or Dailymotion player.

Don't use ffdemux_flv it's crappy and does not handle all that.

Best regards,

Julien Moutte,
FLUENDO S.A.

Florent wrote:
> Hi Julien,
> 
> For reference, you'll find:
> * old sorenson codec encoded videos (h263), which are decoded with
> ffdec_flv and demuxed with ffdemux_flv
> * on2 vp6 videos, which need the ffdec_vp6f and demuxed with ffdemux_flv
> * h264 videos, mp4 muxed. With some differences too: the mov's atom
> (index) is traditionally at the end of the file; for "real" http
> progressive streaming (without complete pre-buffering), some online
> websites that do progressive h264 http streaming do move the atom at
> the beginning of the file (using qt-faststart.c)
> 
> Looking at media center e.g. elisa code might help you with getting
> original video files from websites such as youtube in the "classic"
> fashion (i believe it uses youtube's public api for retrieving the
> videos).
> 
>> Making your player so clever as to do that as well is another issue on
>> which I can't really comment.
> 
> One would have to use the FLV's keyframe index as seeking reference
> for the http src element. I already tried playing back an http hosted
> video, without success. How does random access work ? When seeking the
> source, is the index (moov atom/flv index) used at all ?
> 
> Flo
> 
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