[mythtv] [PATCH] audiooutputalsa
John Patrick Poet
john at BlueSkyTours.com
Wed Aug 18 01:30:58 EDT 2004
David George wrote:
> This patch addresses a couple of issues with audiooutputalsa and has
> some cleanups and additional debugging to help anyone troubleshooting
> alsa issues on their system.
> Currently if WriteAudio fails it closes pcm_handle. This patch adds
> the ability to try to open an audio file handle again. If the re-open
> fails it will then then return the same as it previously did. This
> was discovered when I was troubleshooting audio problems on an HDTV
> stream. AudioOutputAlsa::Reconfigure was reworked a little to support
> Currently if the audiolen was the same as the fragment size the audio
> thread would sit there waiting for more data. I didn't really see the
> point in waiting so when there are 4096 bytes waiting to be sent, send
> Currently if the audio rates don't match the logs would show mismatch
> but the second arg wasn't the mismatched rate. This is a resend of a
> patch I sent on July 13th.
> Patch to log error if snd_pcm_hw_params_malloc fails. It stills works
> the same as it currently does, except now logs an error to notify you.
> Added pcm_handle = NULL; after a snd_pcm_close(pcm_handle) in
> Remove unused variable "written" in WriteAudio.
> Log warning that snd_pcm_delay return is meaningless unless alsa is in
> the running state.
> Cleaned up a couple of non-4space indents.
> Thats about it for this one.
This appears to have fixed my problem with the audio cutting out. Thank
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