[MPlayer-users] dts in libavcodec not working

[Alexander Roalter]

khayos wrote:

> #### with "-msglevel demuxer=6:open-6"
> ~$ mplayer -ac ac3 -aid 129 -msglevel demuxer=6:open=6 dvd://4
> MPlayer 1.0rc1-3.4.6 (C) 2000-2006 MPlayer Team
> CPU: Intel(R) Pentium(R) 4 CPU 1500MHz (Family: 15, Model: 0, Stepping: 7)
> CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
> Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
> 
> Playing dvd://4.
> URL: dvd://4
> Reading disc structure, please wait...
> There are 13 titles on this DVD.
> There are 29 chapters in this DVD title.
> There are 1 angles in this DVD title.
> DVD successfully opened.
> audio stream: 0 format: dts (5.1) language: en aid: 136.
> audio stream: 1 format: ac3 (5.1) language: en aid: 129.
> audio stream: 2 format: ac3 (5.1) language: fr aid: 130.
> number of audio channels on disk: 3.
> subtitle ( sid ): 0 language: en
> subtitle ( sid ): 1 language: es
> subtitle ( sid ): 2 language: fr
> number of subtitles on disk: 3
> STREAM: [null] dvd://4
> STREAM: Description: DVD stream
> STREAM: Author:
> STREAM: Comment:
> Searching demuxer type for filename dvd://4 ext: (null)
> ==> Found video stream: 0
> ==> Found audio stream: 136
> ==> Found audio stream: 129
> ==> Found audio stream: 130
> ds_fill_buffer: EOF reached (stream: video)
> MPEG-PS file format detected.
> VIDEO:  MPEG2  720x480  (aspect 3)  29.970 fps  9800.0 kbps (1225.0 kbyte/s)
> ==========================================================================
> Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
> VDec: vo config request - 720 x 480 (preferred colorspace: Mpeg PES)
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> The selected video_out device is incompatible with this codec.
> Try adding the scale filter, e.g. -vf spp,scale instead of -vf spp.
> VDecoder init failed :(
> Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
> Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
> ==========================================================================
> ==========================================================================
> Forced audio codec: ac3
> Requested audio codec family [ac3] (afm=libac3) not available.
> Enable it at compilation.
> Cannot find codec for audio format 0x2000.
> Read DOCS/HTML/en/codecs.html!
> Audio: no sound
> Starting playback...
> VDec: vo config request - 720 x 480 (preferred colorspace: Planar YV12)
> VDec: using Planar YV12 as output csp (no 0)
> Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
> VO: [x11] 720x480 => 854x480 Planar YV12
> SwScaler: using unscaled yuv420p -> rgb32 special converter
> V:   0.6  12/ 10 ??% ??% ??,?% 0 0
> demux_mpg: 24000/1001fps progressive NTSC content detected, switching framerate.
> V:  20.0 478/475 11%  9%  0.0% 0 0
> Exiting... (Quit)
> ~$
> 
AFAIK you need not specify explicitly ac3, it should use liba52 instead.
If I don't specify any, I get

Selected audio codec: [a52] afm: liba52 (AC3-liba52)

and all is well.

you can still specify -ac a52 if you're into this "specify anything" 
thing, but most of the time mplayer knows what it's doing best, so don't 
bother searching for some complicated solutions...

hth,
Alex