[FFmpeg-devel] [Ffmpeg-devel] configure misses libdts

Kostya kostya.shishkov
Wed May 2 18:50:28 CEST 2007


On Wed, May 02, 2007 at 11:16:16AM +0200, Diego Biurrun wrote:
> On Wed, Apr 25, 2007 at 05:55:37AM +0300, Kostya wrote:
> > On Wed, Apr 25, 2007 at 01:23:53AM +0200, Diego Biurrun wrote:
> > > Also, what about DTS in WAV, does it work?
> > 
> > With -f dts it does.
> 
> What does MPlayer do to play it out of the box?

mplayer -demuxer lavf -lavfdopts format=dts file
works for me. I will see what can be done to that DTS-in-WAV
detection patch.
 
> > >  And did anybody compare the
> > > performance of the two decoders?
> > 
> > FFmpeg with native dca support works faster than dtsdec on my PPC.
> > Well, code is mostly the same.
> 
> Does anybody have numbers on x86?

On my PPC with some samples from MPHQ
(ffmpeg -benchmark -f dts -i file -f wav -acodec pcm_s16le -y /dev/null):
03_NEUE_MUSIC_BERND_THEWES1_kleine...
with libdts: ~22 sec
with    dca: ~7 sec

06_NEW_JAZZ_SSQ3_ENERGY_DTS.wav
with libdts: ~20 sec
with    dca: ~7 sec

Fire__VooDoo_Studio_1_min.wav
with libdts: ~14 sec
with    dca: ~5 sec

I suppose on x86 native dca will be also a bit faster than libdts.

> Diego
> 




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