[Question] Listen for network errors about media-kit HOT 14 CLOSED

Unfortunately, it's not helping. These are the logs I get in the console when I'm watching a live stream and switch off the network :

flutter: mpv: cplayer: warn: Audio device underrun detected.
flutter: isBuffering:true

A few seconds later

flutter: isBuffering:false
flutter: mpv: ffmpeg/video: warn: h264: vt decoder cb: output image buffer is null: -12909
flutter: mpv: ffmpeg/video: error: h264: hardware accelerator failed to decode picture
flutter: mpv: vd: warn: Error while decoding frame (hardware decoding)!
flutter: mpv: ffmpeg/video: error: h264: No frame decoded?
flutter: mpv: vd: warn: Error while decoding frame (hardware decoding)!

IMO media_kit should at least inform the developer when the network requests are failing. Then the developer will decide what to do (display error, retry, close the player...).

from media-kit.

Knowing that:

• the logs are now programmatically accessible: #62
• the buffering information is easily accessible: #123 & #125
• no one else has added a comment for a month

I decide to close this issue.
Feel free to reopen it or add comments if needed 🙂

from media-kit.

I'm pretty sure if you connect back to internet, it'll start playing back again. That's how mpv works. It's not an "error".

from media-kit.

I've tried and when the internet is back the stream doesn't play again, unfortunately, that's why I was expecting a way to know that an "error" happened

from media-kit.

There's also --network-timeout. Like other things on the page, I haven't exposed everything in my abstracted API. However, you can set it like this (do it before opening something to play).

Thanks!

from media-kit.

Thank you, I'll try ASAP

from media-kit.

@JulienDev follow up?

from media-kit.

Unfortunately I'm still not able to make it work. I played with parameters : network-timeout and cache but the error callback is never called. Also the stream is not restarted when internet is back. That's a bit frustrating because I have to restart the stream manually each time a network error is happening.

from media-kit.

As @alexmercerind suggested in pull request #62, with the addition of mpv logs support in main, @JulienDev can you check if you are getting now the logs you want?

You must create a player with these options:

final Player player = Player(
  configuration: const PlayerConfiguration(
    events: true,
    logLevel: MPVLogLevel.warn,
  ),
);

The warn parameter is used to catch warnings and errors.

You have now access to logs:

void pipeLogsToConsole(Player player) {
  player.streams.log.listen((event) {
    if (kDebugMode) {
      print("mpv: ${event.prefix}: ${event.level}: ${event.text}");
    }
  });
}

If that's not enough I don't think it's up to media_kit to handle network errors, since it's the mpv / ffmpeg duo that takes care of network requests, am I wrong?

from media-kit.

Tested with media_kit_test:

Like you, just after disabling the network, I get this:

flutter: mpv: cplayer: warn: Audio device underrun detected.

But unlike you, after a few seconds ffmpeg informs me of a tcp error:

flutter: mpv: ffmpeg: warn: http: Will reconnect at 10251354 in 0 second(s), error=Operation timed out.
flutter: mpv: ffmpeg: error: tcp: Connection to tcp://commondatastorage.googleapis.com:80 failed: Network is unreachable
flutter: mpv: ffmpeg: warn: http: Will reconnect at 10251354 in 1 second(s), error=Operation timed out.
flutter: mpv: ffmpeg: error: tcp: Connection to tcp://commondatastorage.googleapis.com:80 failed: Network is unreachable

from media-kit.

Since it is ffmpeg that takes care of network requests, if it doesn't report tcp errors every time, maybe there is an option missing in the ffmpeg build, or simply the normal behavior or a bug in ffmpeg.

from media-kit.

Tested with media_kit_test:

Like you, just after disabling the network, I get this:

flutter: mpv: cplayer: warn: Audio device underrun detected.

But unlike you, after a few seconds ffmpeg informs me of a tcp error:

flutter: mpv: ffmpeg: warn: http: Will reconnect at 10251354 in 0 second(s), error=Operation timed out.
flutter: mpv: ffmpeg: error: tcp: Connection to tcp://commondatastorage.googleapis.com:80 failed: Network is unreachable
flutter: mpv: ffmpeg: warn: http: Will reconnect at 10251354 in 1 second(s), error=Operation timed out.
flutter: mpv: ffmpeg: error: tcp: Connection to tcp://commondatastorage.googleapis.com:80 failed: Network is unreachable

Did you try with a live streaming video or just a static video?

from media-kit.

A static video: https://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4

Also, the previous logs I provided were for the http address, here are the https ones:

flutter: mpv: ffmpeg: error: tls: read failed: error:14FFF3E7:SSL routines:(UNKNOWN)SSL_internal:unknown failure occurred
flutter: mpv: ffmpeg: warn: https: Will reconnect at 21728009 in 0 second(s), error=Input/output error.
flutter: mpv: ffmpeg: error: tcp: Connection to tcp://commondatastorage.googleapis.com:443 failed: Network is unreachable

Another test (https):

flutter: mpv: ffmpeg: error: tls: read failed: error:14FFF3E7:SSL routines:(UNKNOWN)SSL_internal:unknown failure occurred
flutter: mpv: ffmpeg: warn: https: Will reconnect at 21494536 in 0 second(s), error=Input/output error.
flutter: mpv: ffmpeg: error: tcp: Failed to resolve hostname commondatastorage.googleapis.com: nodename nor servname provided, or not known
flutter: mpv: ffmpeg: error: tls: read failed: error:14FFF3E7:SSL routines:(UNKNOWN)SSL_internal:unknown failure occurred
flutter: mpv: ffmpeg: warn: https: Will reconnect at 21494536 in 1 second(s), error=Input/output error.

from media-kit.

What protocol do you use? Maybe it comes from this.

From Discord: "I use http"

Also, according to my tests (https), the connection resumes by itself after the network is restored.

from media-kit.