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#3 no audio in buffer

v0.6.0
open
Lomion
3
2010-08-18
2009-08-27
Anonymous
No

No audio in buffer. Receiving this message: "Error, You triggered a bug that I am currently trying to locate.\nPlease send the logfile (log.txt) to "email address removed" There videobuffer is full but there is no audio packets.

The attached log file is debug level 8.

Discussion

  • Nobody/Anonymous

    log file from player.

     
  • Lomion

    Lomion - 2009-08-27
    • labels: 1214056 -->
    • priority: 5 --> 3
    • assigned_to: nobody --> lomion0815
     
  • Flohack

    Flohack - 2009-08-27
    • labels: --> Streaming Engine
     
  • Flohack

    Flohack - 2009-08-27

    lomion, did you file this ?

     
  • Lomion

    Lomion - 2009-08-28

    mdrons filed it - we discuss this currently in the development mailing list

     
  • Mikkel Stensgaard

    The "no audio in buffer" happens because there is more video-packets than audio-packets and the buffer fills up. The problem is only on some tuners. (I think this is the same bug, but this might be a more general h.264 bug since VLC have the same issue)
    The reason is that there suddenly is no audio-packets for a while. (Several seconds or more). This seems to be because the tv-tuners chooses not to encode audio, (probably due to driver issues), high load or whatever the reason is. (Simply, there is no audio packets - purely video packets in the mux)
    The problem is that MythTv Player uses the audio as "master" for time. This means that it plays the audio, inspects the audio-packet to retrieve the "time" of the audio and then synchronizes the video-frames to this time. The solution is to be able to have 2 modes and then change mode - depending on the state of the buffers
    1. Audio sync mode. Synchronize video images to the audio (Normal mode)
    2. Video sync mode. Video simply plays by time - skipping audio. (Mode when there is no audio in the buffer.

     
  • Mikkel Stensgaard

    log fil from player

     
  • Mikkel Stensgaard

    I uploaded on of the log files that was sent to me. I got at least 15+ in my mailbox, but they all contains the same information
    Loads of audio - no video at all.

    As I wrote in the last comment, I thought the player leaked packets and used a lot of time to fine - nothing. The real reason is that there is actually no audio for a period of time.

    I got a 600MB Mpeg with the problem - just message me if you want it

     
  • Lomion

    Lomion - 2010-08-18
    • milestone: 943001 --> 949911
     
  • Lomion

    Lomion - 2010-08-18
    • milestone: 949911 --> v0.6.0
     

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