[mythtv] Air2PC / DVB audio playback fails in Mythtv - AC3 handlingproblem?

Blammo [doh] blammo.doh at gmail.com
Mon Feb 14 00:40:03 UTC 2005


FWIW, same behavior with libmpeg disabled.





On Sun, 13 Feb 2005 17:24:59 -0700, Blammo [doh] <blammo.doh at gmail.com> wrote:
> Here's an MPLAYER dump on the same file, and plays it just fine:
> 
> [mythtv at frontend1 ~]$ mplayer -v -ao null -vo null
> /myth/tv/1015_20050211210000_20050211220000.nuv
> MPlayer 1.0pre6-3.4.2 (C) 2000-2004 MPlayer Team
> CPU: Advanced Micro Devices Athlon MP/XP/XP-M Barton (Family: 6, Stepping: 0)
> Detected cache-line size is 64 bytes
> CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
> Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE
> 
> CommandLine: '-v' '-ao' 'null' '-vo' 'null'
> '/myth/tv/1015_20050211210000_20050211220000.nuv'
> init_freetype
> get_path('font/font.desc') -> '/home/mythtv/.mplayer/font/font.desc'
> font: can't open file: /home/mythtv/.mplayer/font/font.desc
> font: can't open file: /usr/local/share/mplayer/font/font.desc
> Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay
> Using Linux hardware RTC timing (1024Hz).
> get_path('input.conf') -> '/home/mythtv/.mplayer/input.conf'
> Can't open input config file /home/mythtv/.mplayer/input.conf: No such
> file or directory
> Can't open input config file /usr/local/etc/mplayer/input.conf: No
> such file or directory
> Falling back on default (hardcoded) input config
> Setting up LIRC support...
> get_path('1015_20050211210000_20050211220000.nuv.conf') ->
> '/home/mythtv/.mplayer/1015_20050211210000_20050211220000.nuv.conf'
> Playing /myth/tv/1015_20050211210000_20050211220000.nuv.
> [file] File size is 2927634368 bytes
> STREAM: [file] /myth/tv/1015_20050211210000_20050211220000.nuv
> STREAM: Description: File
> STREAM: Author: Albeu
> STREAM: Comment: based on the code from ??? (probably Arpi)
> Checking for YUV4MPEG2
> ASF_check: not ASF guid!
> Checking for Nullsoft Streaming Video
> Checking for NuppelVideo
> Checking for REAL
> Checking for SMJPEG
> Searching demuxer type for filename
> /myth/tv/1015_20050211210000_20050211220000.nuv ext: .nuv
> Checking for MOV
> Checking for VIVO
> header block 1 size: 0
> Checking for PVA
> Checking for MPEG-TS...
> TRIED UP TO POSITION 68429, FOUND 47, packet_size= 0, SEEMS A TS? 0
> Checking for LMLM4 Stream Format
> Invalid packet in LMLM4 stream: ch=0 size=1140851704
> LMLM4 Stream Format not found
> system stream synced at 0xD (0)!
> ==> Found video stream: 0
> ==> Found audio stream: 0
> MPEG Stream reached EOF
> ds_fill_buffer: EOF reached (stream: video)
> MPEG-PS file format detected.
> Searching for sequence header... OK!
> VIDEO:  MPEG2  720x480  (aspect 2)  29.970 fps  16000.0 kbps (2000.0 kbyte/s)
> [V] filefmt:2  fourcc:0x10000002  size:720x480  fps:29.97  ftime:=0.0334
> get_path('sub/') -> '/home/mythtv/.mplayer/sub/'
> get_path('default.sub') -> '/home/mythtv/.mplayer/default.sub'
> ==========================================================================
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> dec_audio: Allocating 4608 + 65536 = 70144 bytes for output buffer.
> mp3lib: made decode tables with MMX optimization
> mp3lib: using 3DNow!Ex optimized decore!
> MP3lib: init layer2&3 finished, tables done
> MPEG 1.0, Layer II, 48000 Hz 192 kbit Stereo, BPF: 576
> Channels: 2, copyright: No, original: No, CRC: No, emphasis: 0
> AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 24000->192000 (192.0 kbit)
> Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> ==========================================================================
> Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
> VDec: vo config request - 720 x 480 (preferred csp: Mpeg PES)
> Trying filter chain: vo
> VDec: using Mpeg PES as output csp (no 0)
> Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
> VO Config (720x480->720x540,flags=0,'MPlayer',0x4D504553)
> VO: [null] 720x480 => 720x540 Mpeg PES
> VO: Description: Null video output
> VO: Author: Aaron Holtzman <aholtzma at ess.engr.uvic.ca>
> Selected video codec: [mpegpes] vfm:mpegpes (Mpeg PES output (.mpg or
> Dxr3/DVB card))
> ==========================================================================
> Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
> [libaf] Adding filter dummy
> [dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000001
> and bps = 2
> AF_pre: af format: 2 bps, 2 ch, 48000 hz, little endian signed int
> AF_pre: 48000Hz 2ch Signed 16-bit (Little-Endian)
> AO: [null] 48000Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
> AO: Description: Null audio output
> AO: Author: Tobias Diedrich
> Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
> [dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000001
> and bps = 2
> [dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000001
> and bps = 2
> Starting playback...
> *** [vo] Exporting mp_image_t, 720x480x0bpp RGB packed, 0 bytes
> Uninit audio filters... 0.008 ct:  0.021  25/ 25  0%  0%  1.0% 0 0
> [libaf] Removing filter dummy
> uninit audio: mp3lib
> uninit video: mpegpes
> vo: x11 uninit called but X11 not inited..
> 
> 
> On Mon, 14 Feb 2005 07:51:03 +1100, Mark Anderson
> <markjanderson at mail.com> wrote:
> >
> >
> > > Happy new owner of a Air2PC, recordings play back find in mplayer /
> > > xine, but not in MythFrontend. I suspect it's not correctly
> > > identifying the AC3 audio, which is why I only hear "glitch, glitch
> > > glitch". Again, they play back fine in Mplayer. AC3 2.0.
> > >
> > > I've seen mentions of this in other threads, and wanted to bring it to
> > > the forefront. Is this something one of the devs is working on? I'm
> > > happy to lend any form of help / access etc to help resolve this
> > > issue, since it makes watching HD recordings a multi-step process, and
> > > not wife friendly. :)
> > >
> >
> > Post a log of the frontend when it initialises audio.
> >
> > Mark
> >
> > --------------------------------------------------------------------------------
> >
> > _______________________________________________
> > mythtv-dev mailing list
> > mythtv-dev at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
> >
> >
>


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