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• flutter integration with ffmpeg package for video stream recording using rtsp url

  16 avril, par Brijesh Gangwar

  Launching lib\main.dart on SM X115 in debug mode...
C:\Users\hp\AppData\Local\Pub\Cache\hosted\pub.dev\ffmpeg_kit_flutter_full_gpl-6.0.3\android\src\main\java\com\arthenica\ffmpegkit\flutter\FFmpegKitFlutterPlugin.java:157: error: cannot find symbol
    public static void registerWith(final io.flutter.plugin.common.PluginRegistry.Registrar registrar) {
                                                                                 ^
  symbol:   class Registrar
  location: interface PluginRegistry
C:\Users\hp\AppData\Local\Pub\Cache\hosted\pub.dev\ffmpeg_kit_flutter_full_gpl-6.0.3\android\src\main\java\com\arthenica\ffmpegkit\flutter\FFmpegKitFlutterPlugin.java:651: error: cannot find symbol
    protected void init(final BinaryMessenger messenger, final Context context, final Activity activity, final io.flutter.plugin.common.PluginRegistry.Registrar registrar, final ActivityPluginBinding activityBinding) {
                                                                                          ^
  symbol:   class Registrar
  location: interface PluginRegistry
2 errors

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':ffmpeg_kit_flutter_full_gpl:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
> Run with --info option to get more log output.
> Run with --scan to get full insights.

BUILD FAILED in 15s

┌─ Flutter Fix ───────────────────────────────────────────────────────────────────────────────────┐
│ [!] Consult the error logs above to identify any broken plugins, specifically those containing  │
│ "error: cannot find symbol..."                                                                  │
│ This issue is likely caused by v1 embedding removal and the plugin's continued usage of removed │
│ references to the v1 embedding.                                                                 │
│ To fix this error, please upgrade your current package's dependencies to latest versions by     │
│ running `flutter pub upgrade`.                                                                  │
│ If that does not work, please file an issue for the problematic plugin(s) here:                 │
│ https://github.com/flutter/flutter/issues                                                       │
└─────────────────────────────────────────────────────────────────────────────────────────────────┘
Error: Gradle task assembleDebug failed with exit code 1

Exited (1). 


  


  how to solve this

  


  I tried to use widget_record_video package instead but it is still depended on flutter ffmpeg package.
I have already tried to install app on real device.
Help me out to solve this error

  


• ffmpeg, how to concat two streams, one with and one without audio

  3 janvier 2019, par chasep255

  I have one clip filmed at 240 FPS. I want to slow it down 8x and concat the slow motion version of it to the fast version. The fast version has audio but the slow does not. When I open the finished movie using totem in Ubuntu I get no sound. However, the sound appears to be correct when I use VLC. I think this is an issue with the sound not being the same length as the final movie. I think I somehow need to pad the sound to the length of the final movie. Anyone know how to pad the audio or a better way to do this ?

  ffmpeg -hwaccel cuda -i GX010071_1.MP4 -filter_complex "[0:v]setpts=8*PTS[s];[0:v]framerate=30[f]; [f] [s] concat=n=2 [c]" -map '[c]' -map 0:a -c:v hevc_nvenc SLOW.MP4

• No option name near , Error parsing a filter description around

  8 août 2024, par Aqib Javed

  I am trying to attach the captions files ( srt format ) to a video
if im running the same command on mac or windows, its working with -vf or -filter_complex but on android/IOS, its not working and throwing the same error

  


  i am on Flutter and here is my code :

  


  var tempDir = await getTemporaryDirectory();
var status = await Permission.storage.status;
if (!status.isGranted) {
  await Permission.storage.request();
}

final outputPath = "${tempDir.path}/outputWithCaptions.mp4";


const videoPath = "/storage/emulated/0/Download/english.mp4";
final subtitlePath = deepGramResponse.captionsPath.replaceAll('\'', '\\\'');
String command = "-y -i";
command = "$command '$videoPath'";
command = "$command -vf";
command = '$command "subtitles=\'$subtitlePath\'"';
command = "$command '$outputPath'";
 if (File(videoPath).existsSync() && File(subtitlePath).existsSync()) {
  FFmpegKit.executeAsync(command, (session) async {
    final returnCode = await session.getReturnCode();
    final output = await session.getOutput();
    final error = await session.getFailStackTrace();
    final logs = await session
        .getAllLogs()
        .then((value) => value.map((e) => e.getMessage()).toList());
    log('FFmpeg command executed with return code: $returnCode');
    if (ReturnCode.isSuccess(returnCode)) {
      log('Captions attached successfully');
      deepGramResponse.copyWith(
        videoPath: outputPath,
      );
      Get.to(() => VideoPlayerScreen(videoPath: outputPath));
    } else {
      log('FFmpeg command failed');
      log('Error output: $output');
      log('Error details: $error');
      log('Logs: $logs');
      Fluttertoast.showToast(
          msg: 'Something went wrong, please try again later');
    }
  });
} else {
  log('One or more files do not exist');
  Fluttertoast.showToast(msg: 'Subtitle or video file not found');
  return;
}


  


  and here is the error :

  


   , [AVFilterGraph @ 0x7b8a3dda90] No option name near '/data/user/0/com.example.blink/app_flutter/captions.srt'
  , [AVFilterGraph @ 0x7b8a3dda90] Error parsing a filter description around: 
  , [AVFilterGraph @ 0x7b8a3dda90] Error parsing filterchain 'subtitles='/data/user/0/com.example.blink/app_flutter/captions.srt'' around: 
  , Error reinitializing filters!
  , Failed to inject frame into filter network: Invalid argument
  , Error while processing the decoded data for stream #0:0
  , Conversion failed!