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Sur d’autres sites (10773)

  • Permission deneied android 14 FFmpeg [closed]

    26 décembre 2023, par Aarav Raj

    I have inserted log

    


    ffmpeg -hwaccel auto -y -i "/storage/emulated/0/DCIM/Camera/20231217_205048.mp4" -c:v libaom-av1 -q:v 5 -c:a libmp3lame -ab 128k -ar 44100 "/storage/emulated/0/DCIM/Camera/20231217_205048.avi"

    


    ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers

    


    built with gcc 4.9.x (GCC) 20150123 (prerelease)

    


    configuration : —enable-version3 —enable-gpl —enable-nonfree —disable-indev=v4l2 —enable-libmp3lame —enable-libx264 —enable-libx265 —enable-libvpx —enable-libvorbis —enable-libtheora —enable-libopus —enable-libfdk-aac —enable-libfreetype —enable-libass —enable-libfribidi —enable-fontconfig —enable-pthreads —enable-libxvid —enable-filters —enable-openssl —enable-librtmp —disable-protocol='udp,udplite' —enable-libopencore-amrwb —enable-libopencore-amrnb —enable-libvo-amrwbenc —enable-libspeex —enable-libsoxr —enable-libwebp —enable-libxml2 —enable-libopenh264 —enable-jni —prefix=/home/silentlexx/AndroidstudioProjects/ffmpeg/ffmpeg/build/arm64-api21-r13b —sysroot=/home/silentlexx/Android/android-ndk-r13b/platforms/android-21/arch-arm64 —arch=arm64 —disable-shared —enable-static —enable-pic —enable-ffmpeg —disable-ffplay —disable-ffprobe —disable-ffnvcodec —disable-avdevice —disable-debug —disable-doc —disable-htmlpages —disable-manpages —disable-podpages —disable-txtpages —disable-symver —cross-prefix=/home/silentlexx/Android/android-ndk-r13b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- —target-os=android —enable-cross-compile —pkg-config-flags=—static —extra-libs='-lgnustl_static -lm -lpng -l:libz.so -lpthread' —enable-asm —enable-neon —enable-libxavs2 —enable-libdav1d —enable-libaom —enable-small

    


    libavutil 58. 2.100 / 58. 2.100

    


    libavcodec 60. 3.100 / 60. 3.100

    


    libavformat 60. 3.100 / 60. 3.100

    


    libavfilter 9. 3.100 / 9. 3.100

    


    libswscale 7. 1.100 / 7. 1.100

    


    libswresample 4. 10.100 / 4. 10.100

    


    libpostproc 57. 1.100 / 57. 1.100

    


    /storage/emulated/0/DCIM/Camera/20231217_205048.mp4 : Permission deni
ed

    


    When i tried to convert a mp4 to av1 it showed me this error.

    


  • ffmpeg messes up delayed inputs (repeats at the beginning)

    20 mars 2023, par Ralph

    ffmpeg plays audio inputs delayed to t1, t2 etc at t=0.
If there are several inputs, then it replicates one after the other (after in0 finishes with its duration duration(in0), plays another one at t=duration(in0), etc.)

    


    In the following example, the in0 is played at t=0.

    


    ffmpeg -i in0.mp3 -i in1.mp3 -i in2.mp3 -filter_complex "[0]adelay=1000[delayed1];[1]adelay=2000[delayed2];[2]adelay=3000[delayed3];[delayed1][delayed2][delayed3]amix=inputs=3:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3


    


    The command performs the following : 1. The ffmpeg processes three input files (mp3). 2. The complex filter delays the inputs by 1, 2, 3 seconds input-wise. 3. amix mixes the delayed outputs together. 4. And finally, a coded transforms it into an output mp3.

    


    Another short version : 2 delayed beeps, an finally there come 3 beeps out (@ 0, 1, 2 seconds) :

    


    ffmpeg -i beep.mp3 -filter_complex "[0]adelay=1000[delayed1];[0]adelay=2000[delayed2];[delayed1][delayed2]amix=inputs=2:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3


    


    ffmpeg version N-110011-gf456c192d9-tessus on a Mac M1, downloaded as binary from https://evermeet.cx/ffmpeg (01.2023).

    


    I added also a silent input file from 0 to 1 seconds without any alteration of the outcome.
I added a silent stream as input as well without improvement. E.g. :

    


    ... -filter_complex "aevalsrc=0:d=4[silence];...


    


    Another test with another ffmpeg version 5.1 Copyright (c) 2000-2022 the FFmpeg developers built with Apple clang version 13.1.6 (clang-1316.0.21.2.5) :
ffmpeg -i beep.mp3 -filter_complex "[0]adelay=1000[delayed1];aevalsrc=0:d=5[silence];[silence][delayed1]amix=inputs=2:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3
There are again 2 beeps, at 0 and 1 second.

    


    (comment : concat solves the issue. But I want to have a flexible solution with possibly overlapping audio streams.) Thanks for giving a hint !

    


  • Issue with Batch File for FFmpeg Video Frame Extraction

    30 septembre 2023, par Claudio Martini

    Issue

    


    [swscaler @ 0000019531bb00c0] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'temp_frames/frame%08d.jpg':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41
    encoder         : Lavf60.11.100
  Stream #0:0(eng): Video: mjpeg, yuvj420p(pc, progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn (default)
    Metadata:
      creation_time   : 2023-09-29T13:37:07.000000Z
      handler_name    : ?Mainconcept Video Media Handler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.26.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
[image2 @ 000001951c61b980] Could not open file : temp_frames/frame00000001.jpg
[vost#0:0/mjpeg @ 000001951c603e80] Error submitting a packet to the muxer: I/O error
[out#0/image2 @ 000001951cb8ee80] Error muxing a packet
[out#0/image2 @ 000001951cb8ee80] video:389kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
frame=    1 fps=0.0 q=1.0 Lsize=N/A time=00:00:00.24 bitrate=N/A speed=1.03x
Conversion failed!


    


    I've noticed that using an escape code '%%' for the '%' character, as suggested for similar issues, resolves the problem :

    


    ffmpeg -i video.mp4 -qscale:v 1 -qmin 1 -qmax 1 -vsync 0 tmp_frames/frame%%08d.jpg


    


    However, the same issue occurs even when the command is used within a drag&drop batch file :

    


    setlocal enabledelayedexpansion

REM Check if an MP4 file was dragged onto the script
if "%~1"=="" (
    echo Drag an MP4 file onto this script to begin frame extraction.
    pause
    exit /b
)

REM Extract frames from the MP4 file
ffmpeg -i "%~1" -qscale:v 1 -qmin 1 -qmax 1 -vsync 0 temp_frames/frame%%08d.jpg

echo Extraction complete.
pause


    


    This is essentially the same code, but it doesn't work as expected within the batch file. Can anyone provide insight into why this issue is occurring and how to resolve it within the batch file context ?

    


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