[mythtv-users] mythdvd internal player and DTS passthrough

[Steven Adeff]

On 9/12/06, Greg Ferreri <gferreri at gmail.com> wrote:
> Hi all,
>
> I'm using the dvd internal player for the first time today after upgrading
> to 0.20.  Video works fine, audio works, but I can't play a DVD in DTS mode.
>  I've got my alsa settings configured to output all audio to my SPDIF port.
> I've tried every combination of settings in the audio menu (passthrough
> output device, enable AC3 to SPDIF passthrough)... passthrough works just
> fine in Xine and Mplayer -- I have no problems getting DTS through either of
> those.  But the internal player seems to be trying to decode the DTS
> internally instead of passing it through... here's the log... any ideas?
>
> Thanks,
> Greg
>
> 2006-09-12 00:02:52.549 Opened DVD device at //dev/dvd
> 2006-09-12 00:02:52.549 There are 1 titles on the disk
> 2006-09-12 00:02:52.550 Title 0 has 0 parts.
> 2006-09-12 00:02:52.695 AFD: Opened codec 0xa95f400, id(MPEG2VIDEO)
> type(Video)
> 2006-09-12 00:02:52.696 NVP: Disabling Audio, params(-1,-1,-1)
> 2006-09-12 00:02:52.696 NVP: Disabling Audio, params(0,-1,-1)
> 2006-09-12 00:02:52.718 VideoOutputXv: XvMCTex: Init failed
> 2006-09-12 00:02:52.719 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
> Overlay'
> 2006-09-12 00:02:55.052 TV: Changing from None to WatchingPreRecorded
> 2006-09-12 00:02:55.157 Video timing method: USleep with busy wait
> 2006-09-12 00:02: 58.382 AFD: Warning, video codec 0xa95f400 id(MPEG2VIDEO)
> type (Video) already open.
> 2006-09-12 00:02:58.383 AFD: Opened codec 0xb5c1ee0, id(PCM_S16BE)
> type(Audio)
> 2006-09-12 00:02:58.423 Opening ALSA audio device 'digital'.
> 2006-09-12 00:02:58.494 NVP: Enabling Audio
> 2006-09-12 00:02:58.823 WriteAudio: buffer underrun
> 2006-09-12 00:03:04.155 WriteAudio: buffer underrun
> 2006-09-12 00:03:23.078 AFD: Warning, video codec 0xa95f400 id(MPEG2VIDEO)
> type (Video) already open.
> 2006-09-12 00:03:23.078 AFD: Warning, audio codec 0xb5c1ee0 id(PCM_S16BE)
> type (Audio) already open, leaving it alone.
> 2006-09-12 00:03:23.079 AFD: Opened codec 0xb67f3a0, id(AC3) type(Audio)
> 2006-09-12 00:03:23.087 Opening ALSA audio device 'iec958:{ AES0 0x02 }'.
> 2006-09-12 00:03:26.554 AFD: Warning, video codec 0xa95f400 id(MPEG2VIDEO)
> type (Video) already open.
> 2006-09-12 00:03:26.554 AFD: Warning, audio codec 0xb5c1ee0 id(PCM_S16BE)
> type (Audio) already open, leaving it alone.
> 2006-09-12 00:03:26.554 AFD: Warning, audio codec 0xb67f3a0 id(AC3) type
> (Audio) already open, leaving it alone.
> 2006-09-12 00:03:26.554 AFD: Opened codec 0xb6cd590, id(DVD_SUBTITLE)
> type(Subtitle)
> 2006-09-12 00:03: 30.918 WriteAudio: buffer underrun
> 2006-09-12 00:04:02.697 WriteAudio: buffer underrun
> 2006-09-12 00:04:03.042 WriteAudio: buffer underrun
> 2006-09-12 00:04:03.179 WriteAudio: buffer underrun
> 2006-09-12 00:04:03.512 WriteAudio: buffer underrun
> 2006-09-12 00:04:03.845 WriteAudio: buffer underrun
> 2006-09-12 00:04:04.380 WriteAudio: buffer underrun
> 2006-09-12 00:04:04.714 WriteAudio: buffer underrun
> 2006-09-12 00:04:27.893 AFD: Warning, audio codec 0xb5c1ee0 id(PCM_S16BE)
> type (Audio) already open, leaving it alone.
> 2006-09-12 00:04:27.893 AFD: Warning, audio codec 0xb67f3a0 id(AC3) type
> (Audio) already open, leaving it alone.
> 2006-09-12 00:04:27.917 Opening ALSA audio device 'digital'.
> 2006-09-12 00:04:28.218 AFD: Warning, video codec 0xa95f400 id(MPEG2VIDEO)
> type (Video) already open.
> 2006-09-12 00:04:28.218 AFD: Warning, audio codec 0xb5c1ee0 id(PCM_S16BE)
> type (Audio) already open, leaving it alone.
> 2006-09-12 00:04:28.218 AFD: Warning, audio codec 0xb67f3a0 id(AC3) type
> (Audio) already open, leaving it alone.
> 2006-09-12 00:04:28.218 AFD Error: Could not find decoder for codec (DTS),
> ignoring.
> [mpeg @ 0x188840]Parser not found for Codec Id: 86021 !
> 2006-09-12 00:20:13.001 TV: Attempting to change from WatchingPreRecorded to
> None
> 2006-09-12 00:20:13.180 TV: Changing from WatchingPreRecorded to None

Assuming you have DTS support compiled in, make sure the option for
DTS passthrough is enabled.

-- 
Steve
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