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Sur d’autres sites (5095)

  • FFMPEG conversion error from MKV to MP4 using libfdk_aac codec

    23 août 2014, par Charlie Brown

    The purpose of doing this is because my "Smart" samsung TV doesn’t play MKV files.

    This thread mentions that there is no need for video conversion, just changing the container might suffice. After reading multiple threads on how to change the container of MKV to MP4, I downloaded and compiled the FFMPEG with libfdk_aac support from here. I tried converting a sample MKV file using this command :

    ffmpeg -i "C:\VideoTest\Sample1.mkv" -c:v copy -c:a libfdk_aac -b:a 384k "C:\VideoTest\Sample2.mp4"

    but getting the following errors (copied from command prompt) :

    [hevc @ 0000000000308ae0] Could not find ref with POC 113
    
[hevc @ 0000000000308ae0] Could not find ref with POC 111
    
[hevc @ 0000000000308ae0] Could not find ref with POC 109
    
[hevc @ 0000000000308ae0] Could not find ref with POC 107
    
Input #0, matroska,webm, from 'C:\VideoTest\Sample-1.mk
    
v':
    
  Metadata:
    
    encoder         : libebml v1.3.0 + libmatroska v1.4.1
    
    creation_time   : 2014-07-16 08:54:02
    
  Duration: 00:00:58.68, start: 0.042000, bitrate: 3520 kb/s
    
    Chapter #0.0: start 0.000000, end 58.717000
    
    Metadata:
    
      title           : Chapter 4
    
    Stream #0:0: Video: hevc (Main), yuv420p(tv), 1920x816, SAR 1:1 DAR 40:17, 2
    
4 fps, 24 tbr, 1k tbn, 1k tbc (default)
    
    Metadata:
    
      _STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
    
 Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
    
t on Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
    
      _STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
    
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      BPS             : 2733260
    
      BPS-eng         : 2733260
    
      DURATION        : 00:00:58.667000000
    
      DURATION-eng    : 00:00:58.667000000
    
      NUMBER_OF_FRAMES: 1408
    
      NUMBER_OF_FRAMES-eng: 1408
    
      NUMBER_OF_BYTES : 20044023
    
      NUMBER_OF_BYTES-eng: 20044023
    
    Stream #0:1: Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 768 kb/s (default)
    

    
    Metadata:
    
      _STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
    
 Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
    
t on Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
    
      _STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
    
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      BPS             : 767986
    
      BPS-eng         : 767986
    
      DURATION        : 00:00:58.625000000
    
      DURATION-eng    : 00:00:58.625000000
    
      NUMBER_OF_FRAMES: 5496
    
      NUMBER_OF_FRAMES-eng: 5496
    
      NUMBER_OF_BYTES : 5627904
    
      NUMBER_OF_BYTES-eng: 5627904
    
    Stream #0:2(eng): Subtitle: hdmv_pgs_subtitle, 1920x1080 (default)
    
    Metadata:
    
      _STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
    
 Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
    
t on Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
    
      _STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
    
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      BPS             : 17485
    
      BPS-eng         : 17485
    
      DURATION        : 00:00:56.750000000
    
      DURATION-eng    : 00:00:56.750000000
    
      NUMBER_OF_FRAMES: 40
    
      NUMBER_OF_FRAMES-eng: 40
    
      NUMBER_OF_BYTES : 124036
    
      NUMBER_OF_BYTES-eng: 124036
    
Output #0, mp4, to 'C:\VideoTest\Sample.mp4':
    
  Metadata:
    
    encoder         : Lavf56.1.100
    
    Chapter #0.0: start 0.000000, end 58.675000
    
    Metadata:
    
      title           : Chapter 4
    
    Stream #0:0: Video: hevc ([35][0][0][0] / 0x0023), yuv420p, 1920x816 [SAR 1:
    
1 DAR 40:17], q=2-31, 24 fps, 16k tbn, 1k tbc (default)
    
    Metadata:
    
      _STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
    
 Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
    
t on Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
    
      _STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
    
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      BPS             : 2733260
    
      BPS-eng         : 2733260
    
      DURATION        : 00:00:58.667000000
    
      DURATION-eng    : 00:00:58.667000000
    
      NUMBER_OF_FRAMES: 1408
    
      NUMBER_OF_FRAMES-eng: 1408
    
      NUMBER_OF_BYTES : 20044023
    
      NUMBER_OF_BYTES-eng: 20044023
    
    Stream #0:1: Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 48000 Hz, 5.1
    
, s16, 128 kb/s (default)
    
    Metadata:
    
      _STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 64bit built on
    
 Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 64bit buil
    
t on Jun  9 2014 15:16:27
    
      _STATISTICS_WRITING_DATE_UTC: 2014-07-16 08:54:02
    
      _STATISTICS_WRITING_DATE_UTC-eng: 2014-07-16 08:54:02
    
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      BPS             : 767986
    
      BPS-eng         : 767986
    
      DURATION        : 00:00:58.625000000
    
      DURATION-eng    : 00:00:58.625000000
    
      NUMBER_OF_FRAMES: 5496
    
      NUMBER_OF_FRAMES-eng: 5496
    
      NUMBER_OF_BYTES : 5627904
    
      NUMBER_OF_BYTES-eng: 5627904
    
      encoder         : Lavc56.0.101 libfdk_aac
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (dts (dca) -> aac (libfdk_aac))
    
Press [q] to stop, [?] for help
    
[mp4 @ 0000000003be0500] Invalid DTS: 656 PTS: -672 in output stream 0:0
    
av_interleaved_write_frame(): Invalid argument
    
[libfdk_aac @ 00000000042fa640] Trying to remove 1024 samples, but the queue is
    
empty
    
[mp4 @ 0000000003be0500] Encoder did not produce proper pts, making some up.
    
[libfdk_aac @ 00000000042fa640] Trying to remove 1024 samples, but the queue is
    
empty
    
frame=    2 fps=0.0 q=-1.0 Lsize=      96kB time=00:00:00.04 bitrate=18415.0kbit
    
s/s
    
video:95kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB muxing ov
    
erhead: 0.570364%
    
Conversion failed!

    Also tried using this command :

    ffmpeg -i input.wav -c:a libfdk_aac -b:a 128k output.mp4

    But this screws up the video quality and I start seeing some bad pixelated patches during the playback.

    Any help would be appreciated.

    Just an FYI : I got this far by reading blogs and posts. I have 0 knowledge about video conversion.

  • JavaCV/FFmpeg causes crash only on Lollipop

    13 novembre 2015, par WeirdHat

    I get reports of this crash from users of my app on Galaxy Note devices running Android Lollipop (might happen on other devices but the majority of my users have Galaxy Note because it’s a drawing app). Below is the relevant code from my ASyncTask which exports a series of images (plus audio) to a video file using JavaCV/FFmpeg, and the stack trace from the reported crash. It works fine on my Note 8.0 running KitKat (there’s no Lollipop update available for that device), and works fine in Lollipop on the emulator, so I’m having a hard time tracking down the cause and don’t know what to do.

    @Override
    
protected String doInBackground(final File... params) {
    
    FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(params[0],canvas_width,canvas_height, 0);
    
    FrameGrabber audiograbber = null;
    
    if(audio!=null) audiograbber = new FFmpegFrameGrabber(audio);
    
    Frame audioframe;
    
    Frame image;
    
    AndroidFrameConverter converter = new AndroidFrameConverter();
    

    
    try {
    
        recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
    
        recorder.setFrameRate(framerate);
    
        recorder.setPixelFormat(0);
    
        if(audio!=null) {
    
            audiograbber.setFrameRate(framerate);
    
            audiograbber.start();
    
            recorder.setAudioChannels(audiograbber.getAudioChannels());
    
            recorder.setSampleRate(audiograbber.getSampleRate());
    
        }
    
        recorder.start();
    

    
        Bitmap drawframe = createBitmap(canvas_width, canvas_height, Bitmap.Config.ARGB_8888);
    
        Canvas c = new Canvas(drawframe);
    
        Paint p = new Paint();
    

    
        for(int frame=0; frame/code to draw image
    

    
            image = converter.convert(drawframe);
    
            recorder.record(image);
    
        }
    

    
        if(isCancelled()) {
    
            bgbitmap.recycle();
    
            drawframe.recycle();
    
            return "Cancelled";
    
        }
    

    
        if(audio!=null) {
    
            while((audioframe = audiograbber.grabFrame()) != null) {
    
                recorder.record(audioframe);
    
            }
    
        }
    

    
        recorder.stop();
    
        bgbitmap.recycle();
    
        drawframe.recycle();
    
        if(audio!=null) audiograbber.stop();
    
        return "Saved "+params[0];
    
    } catch (Exception e) {
    
        e.printStackTrace();
    
    }
    
    return "Failed";
    
}

    -

    *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
    
Build fingerprint: 'samsung/treltexx/trelte:5.1.1/LMY47X/N910CXXU1COH4:user/release-keys'
    
Revision: '21'
    
ABI: 'arm'
    
pid: 12039, tid: 12053, name: GCDaemon  >>> com.weirdhat.roughanimator <<<
    
signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
    
Abort message: 'sart/runtime/gc/collector/mark_sweep.cc:381] Can't mark invalid object'
    
    r0 00000000  r1 00002f15  r2 00000006  r3 00000000
    
    r4 b366bdb8  r5 00000006  r6 00000002  r7 0000010c
    
    r8 00000001  r9 b446f550  sl b4429000  fp 9a975c60
    
    ip 00002f15  sp b366b008  lr b6db9cb9  pc b6ddd3ac  cpsr 60070010
    

    
backtrace:
    
    #00 pc 0003b3ac  /system/lib/libc.so (tgkill+12)
    
    #01 pc 00017cb5  /system/lib/libc.so (pthread_kill+52)
    
    #02 pc 000188c7  /system/lib/libc.so (raise+10)
    
    #03 pc 00015165  /system/lib/libc.so (__libc_android_abort+36)
    
    #04 pc 00012fac  /system/lib/libc.so (abort+4)
    
    #05 pc 00242f17  /system/lib/libart.so (art::Runtime::Abort()+170)
    
    #06 pc 000ad991  /system/lib/libart.so (art::LogMessage::~LogMessage()+1360)
    
    #07 pc 0013ec53  /system/lib/libart.so (bool art::gc::accounting::HeapBitmap::AtomicTestAndSet(art::mirror::Object const*, art::gc::collector::MarkSweepMarkObjectSlowPath const&)+422)
    
    #08 pc 0013ed27  /system/lib/libart.so (art::gc::collector::MarkSweep::MarkObjectParallel(art::mirror::Object const*)+142)
    
    #09 pc 0013ff23  /system/lib/libart.so (art::gc::collector::MarkSweep::MarkRootParallelCallback(art::mirror::Object**, void*, art::RootInfo const&)+26)
    
    #10 pc 0025893d  /system/lib/libart.so (art::ReferenceMapVisitor::VisitQuickFrame()+1024)
    
    #11 pc 00258cad  /system/lib/libart.so (art::ReferenceMapVisitor::VisitFrame()+224)
    
    #12 pc 0024c8e9  /system/lib/libart.so (art::StackVisitor::WalkStack(bool)+276)
    
    #13 pc 0024e617  /system/lib/libart.so (art::Thread::VisitRoots(void (*)(art::mirror::Object**, void*, art::RootInfo const&), void*)+994)
    
    #14 pc 0013ef9f  /system/lib/libart.so (art::gc::collector::CheckpointMarkThreadRoots::Run(art::Thread*)+126)
    
    #15 pc 0025b44d  /system/lib/libart.so (art::ThreadList::RunCheckpoint(art::Closure*)+296)
    
    #16 pc 0013dc0d  /system/lib/libart.so (art::gc::collector::MarkSweep::MarkRootsCheckpoint(art::Thread*, bool)+96)
    
    #17 pc 0014165d  /system/lib/libart.so (art::gc::collector::MarkSweep::PreCleanCards()+172)
    
    #18 pc 001417d3  /system/lib/libart.so (art::gc::collector::MarkSweep::MarkingPhase()+126)
    
    #19 pc 001418b9  /system/lib/libart.so (art::gc::collector::MarkSweep::RunPhases()+176)
    
    #20 pc 00138527  /system/lib/libart.so (art::gc::collector::GarbageCollector::Run(art::gc::GcCause, bool)+246)
    
    #21 pc 0015865b  /system/lib/libart.so (art::gc::Heap::CollectGarbageInternal(art::gc::collector::GcType, art::gc::GcCause, bool)+1426)
    
    #22 pc 00159af5  /system/lib/libart.so (art::gc::Heap::ConcurrentGC(art::Thread*)+56)
    
    #23 pc 000003ef  /system/framework/arm/boot.oat

  • How to add subtitles using FFmpeg-kit ?

    17 novembre 2024, par Mohammed Bekele

    I'm running a Flutter app with Ffmpeg-kit package to burn a subtitle on a video. I have a words list with the timings and map that to generate an srt and ass file, but when executing this it didn't work.

    


    Firstly, here is how I generated the Ass file.

    


    Future<string> _createAssFile() async {&#xA;    String filePath = await getAssOutputFilePath();&#xA;&#xA;    final file = File(filePath);&#xA;    final buffer = StringBuffer();&#xA;&#xA;    // Write ASS headers&#xA;    buffer.writeln(&#x27;[Script Info]&#x27;);&#xA;    buffer.writeln(&#x27;Title: Generated ASS&#x27;);&#xA;    buffer.writeln(&#x27;ScriptType: v4.00&#x2B;&#x27;);&#xA;    buffer.writeln(&#x27;Collisions: Normal&#x27;);&#xA;    buffer.writeln(&#x27;PlayDepth: 0&#x27;);&#xA;    buffer.writeln(&#x27;Timer: 100,0000&#x27;);&#xA;    buffer.writeln(&#x27;[V4&#x2B; Styles]&#x27;);&#xA;    buffer.writeln(&#xA;        &#x27;Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding&#x27;);&#xA;    buffer.writeln(&#xA;        &#x27;Style: Default,Arial,40,&amp;H00FFFFFF,&amp;H000000FF,&amp;H00000000,&amp;H80000000,1,1,1,1,100,100,0,0,1,1,1,2,10,10,10,1&#x27;);&#xA;    buffer.writeln(&#x27;[Events]&#x27;);&#xA;    buffer.writeln(&#xA;        &#x27;Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text&#x27;);&#xA;&#xA;    // Write events (subtitles)&#xA;    for (int i = 0; i &lt; widget.words.length; i&#x2B;&#x2B;) {&#xA;      final word = widget.words[i];&#xA;      final startTime = _formatAssTime(word[&#x27;startTime&#x27;].toDouble());&#xA;      final endTime = _formatAssTime(word[&#x27;endTime&#x27;].toDouble());&#xA;      final text = word[&#x27;word&#x27;];&#xA;&#xA;      buffer.writeln(&#x27;Dialogue: 0,$startTime,$endTime,Default,,0,0,0,,$text&#x27;);&#xA;    }&#xA;&#xA;    await file.writeAsString(buffer.toString());&#xA;    return filePath;&#xA;  }&#xA;&#xA;  String _formatAssTime(double seconds) {&#xA;    final int hours = seconds ~/ 3600;&#xA;    final int minutes = ((seconds % 3600) ~/ 60);&#xA;    final int secs = (seconds % 60).toInt();&#xA;    final int millis = ((seconds - secs) * 1000).toInt() % 1000;&#xA;&#xA;    return &#x27;${hours.toString().padLeft(1, &#x27;0&#x27;)}:${minutes.toString().padLeft(2, &#x27;0&#x27;)}:${secs.toString().padLeft(2, &#x27;0&#x27;)}.${(millis ~/ 10).toString().padLeft(2, &#x27;0&#x27;)}&#x27;;&#xA;  }&#xA;</string>

    &#xA;

    Then I used this command which was the official way of adding ass file to a video.

    &#xA;

      String newCmd = "-i $videoPath -vf ass=$assFilePath -c:a copy $_outputPath";&#xA;

    &#xA;

    Yet when executing this command it did not work. However I changed it to this command

    &#xA;

    String newCmd = "-i $videoPath -i $assFilePath $_outputPath";&#xA;

    &#xA;

    Well, that code works but the styling is not being applied. So I tried yet another command to filter and position the ass file.

    &#xA;

    String newCmd = "-i $videoPath -i $assFilePath -filter_complex \"[0:v][1:s]ass=\\an5:text=&#x27;%{event.text}&#x27;,scale=iw*0.8:ih*0.8,setdar=16/9[outv]\" -map [outv] -c:a copy $_outputPath";&#xA;

    &#xA;

    This made it even worse, because the app crashed when I ran this. Also there is a log for this command before crashing

    &#xA;

    F/libc    (19624): Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x19 in tid 21314 (pool-4-thread-7), pid 19624 (ple.caption_app)&#xA;*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***&#xA;Build fingerprint: &#x27;samsung/a15nsxx/a15:14/UP1A.231005.007/A155FXXU1AWKA:user/release-keys&#x27;&#xA;Revision: &#x27;5&#x27;&#xA;ABI: &#x27;arm64&#x27;&#xA;Processor: &#x27;7&#x27;&#xA;Timestamp: 2024-07-10 19:27:40.812476860&#x2B;0300&#xA;Process uptime: 1746s&#xA;Cmdline: com.example.caption_app&#xA;pid: 19624, tid: 21314, name: pool-4-thread-7  >>> com.example.caption_app &lt;&lt;&lt;&#xA;uid: 10377&#xA;tagged_addr_ctrl: 0000000000000001 (PR_TAGGED_ADDR_ENABLE)&#xA;signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0000000000000019&#xA;Cause: null pointer dereference&#xA;    x0  0000000000000001  x1  b400006ec98d8660  x2  0000000000000000  x3  0000000000000002&#xA;    x4  0000006f62d1ea12  x5  b400006e04f745ea  x6  352f35372f64352f  x7  7f7f7f7f7f7f7f7f&#xA;    x8  632ace36577a905e  x9  632ace36577a905e  x10 0000006e191378c0  x11 0000000000000001&#xA;    x12 0000000000000001  x13 0000000000000000  x14 0000000000000004  x15 0000000000000008&#xA;    x16 0000006e27ffa358  x17 0000006e27dbfb00  x18 0000006e00d48000  x19 0000006f62d1f0e8&#xA;    x20 0000006f62d24000  x21 0000006e27ffc5d0  x22 0000006e27ffc5f0  x23 0000000000000000&#xA;    x24 b400006f3f089248  x25 0000006f62d1f220  x26 b400006f3f057b20  x27 0000000000000002&#xA;    x28 0000000000000088  x29 0000006f62d1f100&#xA;    lr  0000006e27dbfb0c  sp  0000006f62d1f0a0  pc  0000006e27dbfb10  pst 0000000060001000&#xA;1 total frames&#xA;backtrace:&#xA;      #00 pc 0000000000121b10  /data/app/~~oWqjrGA2indQhuEw6u_J2A==/com.example.caption_app-u2Ofk54FVtMc5D-i3SLC6g==/base.apk!libavfilter.so (offset 0x10a46000) (avfilter_inout_free&#x2B;16)    &#xA;Lost connection to device.&#xA;

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    I tried the normal command in my local machine on Windows, and this is what I used

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    ffmpeg -i F:\ffmpeg\video.avi -vf subtitles=&#x27;F\:\\ffmpeg\\caption.srt&#x27;:force_style=&#x27;Fontsize=24&#x27; F:\ffmpeg\new.mp4&#xA;

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    As you can see above when subtitles are used it had an extra backslashes for each path and a pre backslash after the partition letter. But I don't know if this does apply for android devices. How can I make sense of this ?

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