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File conversion to mp3 returning failure everytime using flutter package ffmpeg_kit_flutter
7 mai, par Sanath baltharI am trying to convert an audio file generated from flutter "text to speech" package to mp3 file but it is failing everytime.
I have written the below code for file conversion. The conversion fails everytime. I have imported the package ffmpeg_kit_flutter. It doesnt even show why the conversion is failing.
I have looked up in stackoverflow and other sites but could not find any relevant solutions. I am using vscode as editor. I have attached flutter doctor output below as well. Could anyone please guide me ? Let me know if you need more information.


List<string> command = [
 '-i', audiofilepath,
 '-c:a', 'lame',
 '$filePath/999.mp3'
 ];

 await FFmpegKitConfig.enableLogs();
 FFmpegKitConfig.enableLogCallback((log) =>print('FFmpeg log: $log')); 
 FFmpegSession result = await FFmpegKit.executeWithArguments(command);
 dynamic resultcode = await result.getReturnCode();
 dynamic resultlogs = await result.getLogsAsString();
 // FFmpegKitConfig.setLogLevel(logLevel)
 if(ReturnCode.isSuccess(resultcode)){
 print("file saved after conversion at $filePath/999.mp3 and result : Success and logs : $resultlogs");
 }
 else{
 print("file saved after conversion at $filePath/999.mp3 and result : failure and logs : $resultlogs");
 }

Flutter doctor output:
[√] Flutter (Channel stable, 3.19.6, on Microsoft Windows [Version 10.0.22631.3296], locale en-IN)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[√] Chrome - develop for the web
[!] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.9.5)
X Visual Studio is missing necessary components. Please re-run the Visual Studio installer for the "Desktop development with C++"
workload, and include these components:
MSVC v142 - VS 2019 C++ x64/x86 build tools
- If there are multiple build tool versions available, install the latest
C++ CMake tools for Windows
Windows 10 SDK
[√] Android Studio (version 2023.2)
[√] VS Code (version 1.89.0)
[√] Connected device (3 available)
[√] Network resources

! Doctor found issues in 1 category.

</string>

Edit : Attaching error logs from the getLogsAsString() function :


I/flutter (20432): Result : failure and logs : ffmpeg version n6.0 Copyright (c) 2000-2023 the FFmpeg developers
I/flutter (20432): built with Android (7155654, based on r399163b1) clang version 11.0.5 (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d)
I/flutter (20432): configuration: --cross-prefix=aarch64-linux-android- --sysroot=/Users/sue/Library/Android/sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/darwin-x86_64/sysroot --prefix=/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/ffmpeg --pkg-config=/opt/homebrew/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --target-os=android --enable-neon --enable-asm --enable-inline-asm --ar=aarch64-linux-android-ar --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang++ --ranlib=aarch64-linux-android-ranlib --strip=aarch64-linux-android-strip --nm=aarch64-linux-android-nm --extra-libs='-L/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/cpu-features/lib -lndk_compat' --disable-autodetect --enable-cross-compile 


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FFmpeg uses xface to merge videos without transition effects
30 avril, par soapbarffmpeg -i ./first.mp4 -i ./first.mp4 -filter_complex "xfade=transition=circlecrop:duration=1:offset=4,format=yuv420p" -y output.mp4


FFMPEG version 6.1.1, the video is generated normally without any error prompts, but the generated video does not have any transition effects.


output



ffmpeg version 6.1.1-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2000-2023 the FFmpeg developers
 built with Apple clang version 11.0.0 (clang-1100.0.33.17)
 configuration : —cc=/usr/bin/clang —prefix=/opt/ffmpeg —extra-version=tessus —enable-avisynth —enable-fontconfig —enable-gpl —enable-libaom —enable-libass —enable-libbluray —enable-libdav1d —enable-libfreetype —enable-libgsm —enable-libmodplug —enable-libmp3lame —enable-libmysofa —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenh264 —enable-libopenjpeg —enable-libopus —enable-librubberband —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvmaf —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxavs —enable-libxml2 —enable-libxvid —enable-libzimg —enable-libzmq —enable-libzvbi —enable-version3 —pkg-config-flags=—static —disable-ffplay
 libavutil 58. 29.100 / 58. 29.100
 libavcodec 60. 31.102 / 60. 31.102
 libavformat 60. 16.100 / 60. 16.100
 libavdevice 60. 3.100 / 60. 3.100
 libavfilter 9. 12.100 / 9. 12.100
 libswscale 7. 5.100 / 7. 5.100
 libswresample 4. 12.100 / 4. 12.100
 libpostproc 57. 3.100 / 57. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './first.mp4' :
 Metadata :
 major_brand : isom
 minor_version : 512
 compatible_brands : isomiso2avc1mp41
 encoder : Lavf61.1.100
 Duration : 00:00:05.00, start : 0.000000, bitrate : 110 kb/s
 Stream #0:0[0x1](und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1920 [SAR 4095:4096 DAR 36855:65536], 109 kb/s, SAR 14317:14320 DAR 128853:229120, 0.20 fps, 0.20 tbr, 16384 tbn (default)
 Metadata :
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc61.3.100 libx264
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from './first.mp4' :
 Metadata :
 major_brand : isom
 minor_version : 512
 compatible_brands : isomiso2avc1mp41
 encoder : Lavf61.1.100
 Duration : 00:00:05.00, start : 0.000000, bitrate : 110 kb/s
 Stream #1:0[0x1](und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1920 [SAR 4095:4096 DAR 36855:65536], 109 kb/s, SAR 14317:14320 DAR 128853:229120, 0.20 fps, 0.20 tbr, 16384 tbn (default)
 Metadata :
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc61.3.100 libx264
Stream mapping :
 Stream #0:0 (h264) -> xfade
 Stream #1:0 (h264) -> xfade
 format:default -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[libx264 @ 0x7f9f99fc87c0] using SAR=4095/4096
[libx264 @ 0x7f9f99fc87c0] using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x7f9f99fc87c0] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x7f9f99fc87c0] 264 - core 164 r3172 c1c9931 - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - http://www.videolan.org/x264.html - options : cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output.mp4' :
 Metadata :
 major_brand : isom
 minor_version : 512
 compatible_brands : isomiso2avc1mp41
 encoder : Lavf60.16.100
 Stream #0:0 : Video : h264 (avc1 / 0x31637661), yuv420p(tv, progressive), 1080x1920 [SAR 14317:14320 DAR 128853:229120], q=2-31, 0.20 fps, 16384 tbn
 Metadata :
 encoder : Lavc60.31.102 libx264
 Side data :
 cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : N/A
[out#0/mp4 @ 0x7f9f99fc74c0] video:72kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 1.190217%
frame= 2 fps=0.0 q=-1.0 Lsize= 73kB time=00:00:05.00 bitrate= 118.9kbits/s speed=45.5x 
[libx264 @ 0x7f9f99fc87c0] frame I:1 Avg QP:12.25 size : 72527
[libx264 @ 0x7f9f99fc87c0] frame P:1 Avg QP:13.77 size : 216
[libx264 @ 0x7f9f99fc87c0] mb I I16..4 : 51.4% 34.9% 13.8%
[libx264 @ 0x7f9f99fc87c0] mb P I16..4 : 0.0% 0.0% 0.0% P16..4 : 0.8% 0.0% 0.0% 0.0% 0.0% skip:99.2%
[libx264 @ 0x7f9f99fc87c0] 8x8 transform intra:34.9% inter:0.0%
[libx264 @ 0x7f9f99fc87c0] coded y,uvDC,uvAC intra : 9.2% 9.6% 6.9% inter : 0.0% 0.6% 0.0%
[libx264 @ 0x7f9f99fc87c0] i16 v,h,dc,p : 79% 20% 2% 0%
[libx264 @ 0x7f9f99fc87c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 1% 97% 2% 0% 0% 0% 0% 0% 0%
[libx264 @ 0x7f9f99fc87c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 36% 32% 10% 3% 3% 3% 4% 3% 4%
[libx264 @ 0x7f9f99fc87c0] i8c dc,h,v,p : 80% 15% 4% 0%
[libx264 @ 0x7f9f99fc87c0] Weighted P-Frames : Y:0.0% UV:0.0%
[libx264 @ 0x7f9f99fc87c0] kb/s:58.19



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FFmpeg - record from stream terminating unexpectedly using kokorin/Jaffree ffmpeg wrapper for Java
18 avril, par pyrmonI am programming a Spring Boot Application using Maven and Java 21. I am trying to record a stream from a url and save it to a mkv file. I intend to do this with kokorin/Jaffree in version 2023.09.10. The recording seems to work ok, however longer videos are terminating unexpectedly. Sometimes after 5 minutes, other times an hour or even longer. Sometimes with Exit Code 0 and sometimes with 1.


I have implemented the recording like this :


@Override
 public void startRecording(RecordingSchedule recordingSchedule) {
 logger.info("Starting recording for schedule with filename {}", recordingSchedule.getFileName());

 String m3uUrl = recordingSchedule.getM3uUrl();
 LocalDateTime endTime = timeUtils.parseStringToLocalDateTime(recordingSchedule.getEndTime());
 LocalDateTime stopTime = endTime.plusSeconds(20);
 String timeToRecord = timeUtils.calculateTimeToRecord(stopTime);
 Path outputPath = Paths.get("/recordings/" + recordingSchedule.getFileName());

 try {
 FFmpeg.atPath()
 .addInput(UrlInput.fromUrl(m3uUrl))
 .addArgument("-xerror")
 .addArguments("-reconnect", "5")
 .addArguments("-reconnect_streamed", "5")
 .addArguments("-reconnect_delay_max", "20")
 .addArguments("-t", timeToRecord)
 .addArguments("-c", "copy")
 .addOutput(
 UrlOutput.toPath(outputPath))
 .setLogLevel(LogLevel.WARNING)
 .execute();
 logger.info("Recording complete. Output file: {}", outputPath.toAbsolutePath());
 } catch (Exception e) {
 logger.error("Error recording M3U stream {}: {}", recordingSchedule.getFileName(), e.getMessage());
 }
 }


And I am calling the method like this :

executorConfig.executorService().submit(() -> ffmpegService.startRecording(recording));

Any ideas what I am doing wrong ?
Here are the log lines at the beginning and end of recording of the past two attempts :


2024-04-18T00:54:48.689+02:00 INFO 1 --- [pool-2-thread-1] m.s.r.service.impl.FfmpegServiceImpl : Starting recording for schedule with filename Example1.mkv
2024-04-18T00:54:48.697+02:00 WARN 1 --- [pool-2-thread-1] c.github.kokorin.jaffree.ffmpeg.FFmpeg : ProgressListener isn't set, progress won't be reported
2024-04-18T00:54:48.698+02:00 INFO 1 --- [pool-2-thread-1] c.g.k.jaffree.process.ProcessHandler : Command constructed:
ffmpeg -loglevel level+warning -i http://example.stream.url.com -n -xerror -reconnect 5 -reconnect_streamed 5 -reconnect_delay_max 20 -t 10771 -c copy /recordings/Example1.mkv
2024-04-18T00:54:48.698+02:00 INFO 1 --- [pool-2-thread-1] c.g.k.jaffree.process.ProcessHandler : Starting process: ffmpeg
2024-04-18T00:54:48.701+02:00 INFO 1 --- [pool-2-thread-1] c.g.k.jaffree.process.ProcessHandler : Waiting for process to finish
2024-04-18T01:31:02.633+02:00 WARN 1 --- [ StdErr] c.g.k.jaffree.process.BaseStdReader : [h264 @ 0x559cd22dd940] [warning] Increasing reorder buffer to 2
2024-04-18T01:31:02.633+02:00 INFO 1 --- [pool-2-thread-1] c.g.k.jaffree.process.ProcessHandler : Process has finished with status: 0
2024-04-18T01:31:02.734+02:00 INFO 1 --- [pool-2-thread-1] m.s.r.service.impl.FfmpegServiceImpl : Recording complete. Output file: /recordings/Example1.mkv

2024-04-18T03:54:48.678+02:00 INFO 1 --- [pool-2-thread-2] m.s.r.service.impl.FfmpegServiceImpl : Starting recording for schedule with filename Example2.mkv
2024-04-18T03:54:48.678+02:00 WARN 1 --- [pool-2-thread-2] c.github.kokorin.jaffree.ffmpeg.FFmpeg : ProgressListener isn't set, progress won't be reported
2024-04-18T03:54:48.678+02:00 INFO 1 --- [pool-2-thread-2] c.g.k.jaffree.process.ProcessHandler : Command constructed:
ffmpeg -loglevel level+warning -i http://example.stream.url.com/ -n -xerror -reconnect 5 -reconnect_streamed 5 -reconnect_delay_max 20 -t 11431 -c copy /recordings/Example2.mkv
2024-04-18T03:54:48.678+02:00 INFO 1 --- [pool-2-thread-2] c.g.k.jaffree.process.ProcessHandler : Starting process: ffmpeg
2024-04-18T03:54:48.679+02:00 INFO 1 --- [pool-2-thread-2] c.g.k.jaffree.process.ProcessHandler : Waiting for process to finish
2024-04-18T04:57:22.256+02:00 WARN 1 --- [ StdErr] c.g.k.jaffree.process.BaseStdReader : [h264 @ 0x55707ba988c0] [warning] Increasing reorder buffer to 3
2024-04-18T04:58:47.455+02:00 ERROR 1 --- [ StdErr] c.g.k.jaffree.process.BaseStdReader : [NULL @ 0x55707ba988c0] [error] Picture timing SEI payload too large
2024-04-18T04:58:47.456+02:00 ERROR 1 --- [ StdErr] c.g.k.jaffree.process.BaseStdReader : [NULL @ 0x55707ba988c0] [error] non-existing PPS 1 referenced
2024-04-18T04:58:47.456+02:00 WARN 1 --- [ StdErr] c.g.k.jaffree.process.BaseStdReader : [matroska @ 0x55707ba9a380] [warning] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
2024-04-18T04:58:47.456+02:00 ERROR 1 --- [ StdErr] c.g.k.jaffree.process.BaseStdReader : [matroska @ 0x55707ba9a380] [error] Can't write packet with unknown timestamp
2024-04-18T04:58:47.463+02:00 ERROR 1 --- [ StdErr] c.g.k.jaffree.process.BaseStdReader : [error] av_interleaved_write_frame(): Invalid argument
2024-04-18T04:58:47.463+02:00 INFO 1 --- [pool-2-thread-2] c.g.k.jaffree.process.ProcessHandler : Process has finished with status: 1
2024-04-18T04:58:47.564+02:00 ERROR 1 --- [pool-2-thread-2] m.s.r.service.impl.FfmpegServiceImpl : Error recording M3U stream Example2.mkv: Process execution has ended with non-zero status: 1. Check logs for detailed error message.


They were supposed to run nearly 3 hours and the other one over 3 hours. And with the timestamps you can see that they are not running nearly as long.
Thank you for your help !


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