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• ffmpeg configure always returns "not found" when using sysroot and cross-prefix options - how to use them correctly ?

  5 août 2014, par user2212461

  I try to build ffmpeg with a cross-compiler. When setting the configure flags I am getting the following errors :

  WARNING: Compiler does not indicate floating-point ABI, guessing soft.
  
  build_it.sh: 29: build_it.sh: --sysroot=/home/android/android-ndk-r9/platforms/
  
      android-9/arch-arm/: not found
  
  build_it.sh: 32: build_it.sh.sh: --cross-prefix=/home/android/android-ndk-r9/
  
      toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-and
  
      roideabi-: not found

  The error message "not found" sounds like the paths dont exist but they are all correct and existing. How can I resolve this error ?

  build_it.sh :

  NDK=/home/android/android-ndk-r9
  
  SYSROOT=$NDK/platforms/android-9/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86
  
  CPU=arm
  
  PREFIX=test
  
  ADDI_CFLAGS="-marm"
  
  platform="android-9"
  
  
  
  ./configure \
  
      --disable-asm \
  
      --enable-shared \
  
      --target-os=linux \
  
      --arch=arm \
  
      --enable-cross-compile \
  
      --disable-static \
  
      --sysroot=$SYSROOT \
  
      --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
  
      --extra-ldflags="$ADDI_LDFLAGS"
  
      --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
      --prefix=$PREFIX \
  
  
  
  ##configure fails here
  
  ...

• hey i need to download my coaching classes but they are using hls aes 128 bit encrypted streams. i downloaded m3u8 and all .ts files and found enc key

  19 mars 2023, par tinu one

  I downloaded all the .ts files using a python script but it is encrypted with aes 128.i found a encryption key (supposedly) under the network tab in developer options. I ran it through ffmpeg but got an error( invalid data found while processing ). I need these classes because they are going to remove it in may 2023. i am a noob to this and may have done step wrong. Please forgive me. I would deeply appreciate anyone who will help me find a solution to this problem. Thankyou.

  


  I downloaded all the .ts files and m3u8 file and put it inside a folder. I hosted the key file in localhost that I found under the preview tab of the network tab in developer options( it was named key/ after all and had characters which was not human readable. it also had the request URL similar to that inside the m3u8 file)because ffmpeg did not want to read the key file from my local pc. I edited the m3u8 file to access the key stored in local host and it read successfully. but it shows error( invalid data found while processing).

  


  encryption key from preview tab I found : Ø®¢Ù¦Aä [u
request url of the key : https://classes.brilliantpala.org/api/v2.5/video_contents/42475/key/

  


  unedited m3u8 file :

  


  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:19
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-KEY:METHOD=AES-128,URI="https://classes.brilliantpala.org/api/v2.4/encryption_key/40cd559c70c241699cfcda9072c4fb42/",IV=0x00000000000000000000000000000000
#EXTINF:11.680000,
video_0.ts
#EXTINF:10.000000,
video_1.ts
#EXTINF:10.000000,
etc etc..


  


  fetch("https://classes.brilliantpala.org/api/v2.5/video_contents/42475/key/", {
  "headers": {
    "accept": "*/*",
    "accept-language": "en-US,en;q=0.9",
    "sec-ch-ua": "\"Microsoft Edge\";v=\"111\", \"Not(A:Brand\";v=\"8\", \"Chromium\";v=\"111\"",
    "sec-ch-ua-mobile": "?0",
    "sec-ch-ua-platform": "\"Windows\"",
    "sec-fetch-dest": "empty",
    "sec-fetch-mode": "cors",
    "sec-fetch-site": "same-origin",
    "x-key": "5e5d8c5d0486a678ccd4935ecb9fa8a01b1db7327396184ab00b50573119e947"
  },
  "referrer": "https://classes.brilliantpala.org/courses/535/contents/42475/",
  "referrerPolicy": "strict-origin-when-cross-origin",
  "body": null,
  "method": "GET",
  "mode": "cors",
  "credentials": "include"
});```




  


• How to download ffmpeg utilities into Python venv with pip or manual way for torchaudio

  14 décembre 2024, par Furkan Gözükara

  torchaudio requiring avutil and other binary dll files

  


  Source : https://pytorch.org/audio/2.3.0/installation.html

  


  However they given example only for Anaconda

  


  I am not using Anaconda but I am using Python 3.10.11 pip venv

  


  I can't find these DLL files anywhere

  


  How can I find and install them into Python venv ?

  


  Since I can't find, I am getting below error

  


  Traceback (most recent call last):
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\gradio\queueing.py", line 625, in process_events
    response = await route_utils.call_process_api(
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\gradio\route_utils.py", line 322, in call_process_api
    output = await app.get_blocks().process_api(
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\gradio\blocks.py", line 2047, in process_api
    result = await self.call_function(
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\gradio\blocks.py", line 1594, in call_function
    prediction = await anyio.to_thread.run_sync(  # type: ignore
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\anyio\to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\anyio\_backends\_asyncio.py", line 2505, in run_sync_in_worker_thread
    return await future
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\anyio\_backends\_asyncio.py", line 1005, in run
    result = context.run(func, *args)
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\gradio\utils.py", line 869, in wrapper
    response = f(*args, **kwargs)
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\torch\utils\_contextlib.py", line 116, in decorate_context
    return func(*args, **kwargs)
  File "R:\MMAudio_v1\MMAudio\gradio_demo.py", line 60, in video_to_audio
    clip_frames, sync_frames, duration = load_video(video, duration)
  File "R:\MMAudio_v1\MMAudio\mmaudio\eval_utils.py", line 178, in load_video
    reader = StreamingMediaDecoder(video_path)
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\torio\io\_streaming_media_decoder.py", line 526, in __init__
    self._be = ffmpeg_ext.StreamingMediaDecoder(os.path.normpath(src), format, option)
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\torio\_extension\utils.py", line 25, in __getattr__
    self._import_once()
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\torio\_extension\utils.py", line 39, in _import_once
    self.module = self.import_func()
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\torio\_extension\utils.py", line 143, in _init_ffmpeg
    ext = _find_ffmpeg_extension(ffmpeg_vers)
  File "R:\MMAudio_v1\MMAudio\venv\lib\site-packages\torio\_extension\utils.py", line 122, in _find_ffmpeg_extension
    raise ImportError(
ImportError: Failed to intialize FFmpeg extension. Tried versions: ['6', '5', '4', '']. Enable DEBUG logging to see more details about the error.