[gst-embedded] Mpeg Demux on an embedded system
Daniel James Laird
daniel.j.laird at nxp.com
Tue Mar 24 03:42:55 PDT 2009
I am using the Mpeg Demux on an embedded system (Mips32 - 320Mhz, 16K data cache)
I connect this to a custom sink (SYNC disabled) and this renders video/audio at the correct time using the timestamps provided.
However the demux seems unable to keep up with even low bit rate input streams (either PS/TS). This seems somewhat surprising as the MOV/MKV/AVI demuxes all run better(they work well) with higher bitrates and I thought these container formats were more complicated.
Has anyone else had success of running the Mpeg Demux on an embedded systems or have any useful hints as to what I can do to try an improve/analyse this performance issue.
If I capture the data that I am sending to my sink and then playback the data is fine and the timestamps are good. I also used a performance monitoring tool and the demux does seem to use considerably more cycles than other demuxes.
I hope someone has some things to try etc, at the moment it is sadly unusable on my system, and I am wondering if I have missed a really obvious setup choice to make this work better.
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