ffprobekit getMediaInformation session.getMediaInformation() == null, but logCallback can get info. #213

xwolf47 · 2021-10-29T06:33:16Z

Description
Can't get medial info use session.getMediaInformation() alway return null, but print the logCallback can get info.

Expected behavior

Current behavior

To Reproduce

Screenshots
--.

Logs

W/ffmpeg-kit(23314): Get media information execute failed: -i /storage/emulated/0/Download/MOV_0021.mp4.
W/ffmpeg-kit(23314): org.json.JSONException: Value ffprobe of type java.lang.String cannot be converted to JSONObject
W/ffmpeg-kit(23314): 	at org.json.JSON.typeMismatch(JSON.java:111)
W/ffmpeg-kit(23314): 	at org.json.JSONObject.<init>(JSONObject.java:163)
W/ffmpeg-kit(23314): 	at org.json.JSONObject.<init>(JSONObject.java:176)
W/ffmpeg-kit(23314): 	at com.arthenica.ffmpegkit.MediaInformationJsonParser.fromWithError(MediaInformationJsonParser.java:62)
W/ffmpeg-kit(23314): 	at org.json.JSON.typeMismatch(JSON.java:111)
W/ffmpeg-kit(23314): 	at org.json.JSONObject.<init>(JSONObject.java:163)
W/ffmpeg-kit(23314): 	at org.json.JSONObject.<init>(JSONObject.java:176)
W/ffmpeg-kit(23314): 	at com.arthenica.ffmpegkit.FFmpegKitConfig.getMediaInformationExecute(FFmpegKitConfig.java:649)
W/ffmpeg-kit(23314): 	at org.json.JSON.typeMismatch(JSON.java:111)
W/ffmpeg-kit(23314): 	at org.json.JSONObject.<init>(JSONObject.java:163)
W/ffmpeg-kit(23314): 	at org.json.JSONObject.<init>(JSONObject.java:176)
W/ffmpeg-kit(23314): 	at com.arthenica.ffmpegkit.AsyncGetMediaInformationTask.run(AsyncGetMediaInformationTask.java:42)

but the logCallback can return info

I/flutter (23314): ffprobe version v4.5-dev-2008-g90da43557f
I/flutter (23314):  Copyright (c) 2007-2021 the FFmpeg developers
I/flutter (23314): 
I/flutter (23314):   built with Android (7284624, based on r416183b) clang version 12.0.5 (https://android.googlesource.com/toolchain/llvm-project c935d99d7cf2016289302412d708641d52d2f7ee)
I/flutter (23314):   configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk/23.0.7599858/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/storage/light/projects/ffmpeg-kit/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang++ --ranlib=llvm-ranlib --strip=llvm-strip --nm=llvm-nm --extra-libs='-L/storage/light/projects/ffmpeg-kit/prebuilt/android-arm64/cpu-features/lib -lndk_compat' --target-os=android --enable-neon --enable-asm --enable-inline-asm --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --disable-static --enable-shared --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-openssl --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-tx
I/flutter (23314):   libavutil      57.  5.100 / 57.  5.100
I/flutter (23314):   libavcodec     59.  7.103 / 59.  7.103
I/flutter (23314):   libavformat    59.  5.100 / 59.  5.100
I/flutter (23314):   libavdevice    59.  0.101 / 59.  0.101
I/flutter (23314):   libavfilter     8.  9.100 /  8.  9.100
I/flutter (23314):   libswscale      6.  1.100 /  6.  1.100
I/flutter (23314):   libswresample   4.  0.100 /  4.  0.100
I/flutter (23314): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Download/MOV_0021.mp4':
I/flutter (23314):   Metadata:
I/flutter (23314):     major_brand     : 
I/flutter (23314): mp42
I/flutter (23314): 
I/flutter (23314):     minor_version   : 
I/flutter (23314): 0
I/flutter (23314): 
I/flutter (23314):     compatible_brands: 
I/flutter (23314): isommp42
I/flutter (23314): 
I/flutter (23314):     creation_time   : 
I/flutter (23314): 2021-09-18T06:29:10.000000Z
I/flutter (23314): 
I/flutter (23314):     com.android.version: 
I/flutter (23314): 10
I/flutter (23314): 
I/flutter (23314):   Duration: 
I/flutter (23314): 00:00:58.45
I/flutter (23314): , start: 
I/flutter (23314): 0.000000
I/flutter (23314): , bitrate: 
I/flutter (23314): 17792 kb/s
I/flutter (23314): 
I/flutter (23314):   Stream #0:0
I/flutter (23314): [0x1]
I/flutter (23314): (eng)
I/flutter (23314): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 155 kb/s
I/flutter (23314):  (default)
I/flutter (23314): 
I/flutter (23314):     Metadata:
I/flutter (23314):       creation_time   : 
I/flutter (23314): 2021-09-18T06:29:10.000000Z
I/flutter (23314): 
I/flutter (23314):       handler_name    : 
I/flutter (23314): SoundHandle
I/flutter (23314): 
I/flutter (23314):       vendor_id       : 
I/flutter (23314): [0][0][0][0]
I/flutter (23314): 
I/flutter (23314):   Stream #0:1
I/flutter (23314): [0x2]
I/flutter (23314): (eng)
I/flutter (23314): : Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/smpte170m), 1920x1080, 17526 kb/s
I/flutter (23314): , SAR 1:1 DAR 16:9
I/flutter (23314): , 
I/flutter (23314): 29.99 fps, 
I/flutter (23314): 29.99 tbr, 
I/flutter (23314): 90k tbn
I/flutter (23314):  (default)
I/flutter (23314): 
I/flutter (23314):     Metadata:
I/flutter (23314):       creation_time   : 
I/flutter (23314): 2021-09-18T06:29:10.000000Z
I/flutter (23314): 
I/flutter (23314):       handler_name    : 
I/flutter (23314): VideoHandle
I/flutter (23314): 
I/flutter (23314):       vendor_id       : 
I/flutter (23314): [0][0][0][0]
I/flutter (23314): 
I/flutter (23314):     Side data:
I/flutter (23314):       
I/flutter (23314): displaymatrix: rotation of -90.00 degrees
I/flutter (23314): 
I/flutter (23314): Instance of 'MediaInformationSession'
W/libEGL  (23314): EGLNativeWindowType 0x70709ca010 disconnect failed

Environment

Platform: [Android]
Architecture: [arm-v7a, arm-v7a-neon, arm64-v8a, x86, x86_64, armv7, armv7s, arm64, arm64-mac-catalyst, arm64-simulator, arm64e, i386, x86-64, x86-64-mac-catalyst ]
Version (v4.5.0)
Source branch (v4.5.0)
Android Studio version (2020.3.1 Patch 3)

Other
Add any other context about the problem here.

The text was updated successfully, but these errors were encountered:

tanersener · 2021-10-29T08:17:13Z

There is a org.json.JSONException in your logs. That's why you have it.

Would you mind sharing the file that produces this?

xwolf47 · 2021-10-29T09:01:46Z

@tanersener Thanks your reply.
Ok, here is the file https://1drv.ms/u/s!AuwGFeE9bwKYhx8bdMhpX2KOVpRj?e=yhkZoF

tanersener · 2021-10-29T12:45:59Z

I tested your file. But didn't see anything wrong with it.

Which FFprobeKit.getMediaInformation method are you using? Is it one of the getMediaInformationFromCommand methods?

xwolf47 · 2021-11-01T00:52:42Z

Here is the code:

  Future<MediaInformation?> getVideoInfo(final String video) async {
    var logInfo = "";
    MediaInformationSession session = await FFprobeKit.getMediaInformationFromCommandAsync("-i $video", (e){
      print(e);
    }, (log){
      logInfo = log.getMessage();
      print(logInfo);
    });
    var info = session.getMediaInformation();
    if (info == null) {
      print(logInfo);
      //info = MediaInformationSession.fromMap(sessionMap).getMediaInformation();
    }
    return info;
  }

tanersener · 2021-11-01T09:41:13Z

When you pass a custom command, we are expecting that command to produce the output in JSON format. Javadoc of command parameter explains this, FFprobe command that prints media information for a file in JSON format. In this case, your command produces a standard FFprobe output which can not be parsed as JSON.

Have a look at the default command we have in FFprobeKit.getMediaInformationAsync and use something similar in your app.

xwolf47 · 2021-11-02T08:10:35Z

Use FFprobeKit.getMediaInformationAsync is useless, can't get media information. No any error print. But log can get information.

  Future<MediaInformation?> getVideoInfo(final String video) async {
    var logInfo = "";
    MediaInformationSession session = await FFprobeKit.getMediaInformationAsync(video, (e){
      print(e);
    }, (log){
      logInfo = log.getMessage();
      print(logInfo);
    });
    var info = session.getMediaInformation();
    if (info == null) {
      // no data.
    }
    return info;
  }

tanersener · 2021-11-02T09:15:10Z

My suggestion was to look at the command used inside getMediaInformationAsync and use something similar in getMediaInformationFromCommand rather than calling getMediaInformationAsync directly.

Anyway, normally the session returned by getMediaInformationAsync has the MediaInformation object. If it returns null, then there are other methods in the session instance that can be used to check what went wrong. You can see some of them in the http_tab of the test application we have under the ffmpeg-kit-test project. I suggest using them to diagnose your issue.

xwolf47 · 2021-11-03T01:10:13Z

By use FFprobeKit.getMediaInformationAsync second parameter
ExecuteCallback that's ok. But can we get information direct by await FFprobeKit.getMediaInformationAsync return MediaInformationSession. It's will be fixed?

tanersener · 2021-11-03T11:12:08Z

There is a misunderstanding about those flutter plugin methods. Pasting this from another thread.

All async execute methods we have under FFmpegKit and FFprobeKit are responsible of only starting an execution. That's why they are called async. They return immediately and having await there doesn't change anything. If you want be notified about the completion then you can provide an ExecuteCallback to the method call. Or, creating a wait until session.getState() is completed or failed method is also possible.

xwolf47 · 2021-11-04T00:36:34Z

Ok, get it. Thanks!

One-djey · 2021-12-10T19:48:32Z

Even waiting for the SessionState to be not running, and waiting for a non-null ReturnCode doesn't guaranty that the MediaInformations field will be filled:

MediaInformationSession mediaInformationSession = await FFprobeKit.getMediaInformationAsync(path);
ReturnCode returnCode;
SessionState state;
do {
  returnCode = await mediaInformationSession.getReturnCode();
  state = await mediaInformationSession.getState();
  print("$state  $returnCode");
  await Future.delayed(Duration(milliseconds: 100));
} while(state == SessionState.running || returnCode == null)
if(ReturnCode.isSuccess(returnCode)){
  print("mediaInformation: ${mediaInformationSession.getMediaInformation()}");
} else if (ReturnCode.isCancel(returnCode)) {
  print("canceled");
} else {
  print("error");
}

This code print:

SessionState.running null
SessionState.completed 0
mediaInformation: null

This is not a normal behavior: completed with success and still empty.

tanersener · 2021-12-11T10:22:33Z

@One-djey There are API methods on the session object that can be used to investigate an issue. I suggest looking at them, session.getFailStackTrace() and session.getOutput() particularly.

amirmhmdi · 2021-12-18T07:07:23Z

@tanersener
I have same issue !
media information is always null !

tanersener · 2021-12-18T19:08:17Z

@amirmhmdi I wish I could help, but I really don't know what your problem is.

amirmhmdi · 2021-12-21T08:20:09Z

@tanersener
media information is null after FFprobe finish.
and some times get all logs as string function return data that not json too.

I try to understand when list of log as string is not json object;

tanersener · 2021-12-21T09:52:34Z

@amirmhmdi See #215

tanersener added android Affect Android platform library Affects the library needs-analysis We don't know that this is. It must be investigated further v4.5 Affects v4.5 release labels Oct 29, 2021

tanersener added question Further information is requested and removed needs-analysis We don't know that this is. It must be investigated further labels Oct 29, 2021

tanersener added the flutter Affect flutter platform label Nov 2, 2021

xwolf47 closed this as completed Nov 4, 2021

tanersener self-assigned this Nov 4, 2021

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ffprobekit getMediaInformation session.getMediaInformation() == null, but logCallback can get info. #213

ffprobekit getMediaInformation session.getMediaInformation() == null, but logCallback can get info. #213

xwolf47 commented Oct 29, 2021

tanersener commented Oct 29, 2021

xwolf47 commented Oct 29, 2021 •

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xwolf47 commented Nov 1, 2021

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xwolf47 commented Nov 3, 2021

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tanersener commented Dec 11, 2021

amirmhmdi commented Dec 18, 2021

tanersener commented Dec 18, 2021

amirmhmdi commented Dec 21, 2021

tanersener commented Dec 21, 2021

ffprobekit getMediaInformation session.getMediaInformation() == null, but logCallback can get info. #213

ffprobekit getMediaInformation session.getMediaInformation() == null, but logCallback can get info. #213

Comments

xwolf47 commented Oct 29, 2021

Expected behavior

Current behavior

To Reproduce

tanersener commented Oct 29, 2021

xwolf47 commented Oct 29, 2021 • edited Loading

tanersener commented Oct 29, 2021

xwolf47 commented Nov 1, 2021

tanersener commented Nov 1, 2021

xwolf47 commented Nov 2, 2021 • edited Loading

tanersener commented Nov 2, 2021 • edited Loading

xwolf47 commented Nov 3, 2021

tanersener commented Nov 3, 2021 • edited Loading

xwolf47 commented Nov 4, 2021

One-djey commented Dec 10, 2021 • edited Loading

tanersener commented Dec 11, 2021

amirmhmdi commented Dec 18, 2021

tanersener commented Dec 18, 2021

amirmhmdi commented Dec 21, 2021

tanersener commented Dec 21, 2021

xwolf47 commented Oct 29, 2021 •

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xwolf47 commented Nov 2, 2021 •

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tanersener commented Nov 2, 2021 •

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One-djey commented Dec 10, 2021 •

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