[mythtv] [mythtv-commits] mythtv branch master updated by jyavenard. v0.27-pre2-1497-g3c8f209

Jean-Yves Avenard jyavenard at gmail.com
Wed Jun 19 00:08:07 UTC 2013


Hi

On 19 June 2013 08:58, George Nassas <gnassas at mac.com> wrote:

> Can you move around the stream successfully? I’m finding that jumping forward or backward gets Apple's player into some kind of mode where the sound warbles and gradually loses sync with the video. By the end of a 30 minute programme the dialog is ~ 10 seconds behind the actors. This is from OTA recordings with no apparent artifacts.

do you get this when you don't seek within playback?

>
> One particular recording, a lossless transcode of an HD OTA broadcast, shows this log message at the start the HLS transcode:
>
> VideoDecodeBuffer avformatdecoder.cpp:4622 (GetFrame) - AFD: Audio 40320680 ms behind video but already 220 video frames queued. AV-Sync might be broken.

can you upload the entire file somewhere so I could try reproducing it ?

I'm not entirely happy with the way timestamps are calculated between
the video and audio stream

>
> Possibly the output of lossless transcode disagrees with what avformatdecoder wants to see at the beginning of a video? The resulting stream takes forever to start in the player and is audio-only, I get blank for the video.

how does playing the original file work?


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