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

[Diego Biurrun]

On Wed, May 02, 2007 at 07:50:28PM +0300, Kostya wrote:
> 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.

Direct support for DTS in WAV would be welcome.

> > > >  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

What did you do to make it work?  Here's what I get:

silver:/usr/src/ffmpeg $ ./ffmpeg -benchmark -f dts -i
/samples/DTS/03_NEUE_MUSIK_BERND_THEWESl_kleine_pingpark_wolke_DTS.wav
-f wav -acodec pcm_s16le -y /dev/null
FFmpeg version SVN-r8876, Copyright (c) 2000-2007 Fabrice Bellard, et
al.
  configuration: --enable-gpl --disable-ffserver --disable-vhook
--enable-libamr-nb --enable-libamr-wb --enable-libdts
--disable-decoder=dca --disable-parser=dca
  libavutil version: 49.4.0
  libavcodec version: 51.40.4
  libavformat version: 51.12.1
  built on May  3 2007 02:10:17, gcc: 4.1.2 20061115 (prerelease)
(Debian 4.1.1-21)
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
skip
Input #0, dts, from
'/samples/DTS/03_NEUE_MUSIK_BERND_THEWESl_kleine_pingpark_wolke_DTS.wav':
  Duration: 00:15:07.9, start: 0.000000, bitrate: 192 kb/s
  Stream #0.0: Audio: dts, -1211088896 Hz, 5 channels, 192 kb/s
Output #0, wav, to '/dev/null':
  Stream #0.0: Audio: pcm_s16le, -1211088896 Hz, 5 channels, 1897136
kb/s
Stream mapping:
  Stream #0.0 -> #0.0
[wav @ 0x83d83d4]sample rate not set
Could not write header for output file #0 (incorrect codec parameters ?)
bench: utime=0.000s

Diego