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• how to download sample-aes m3u8 with ffmpeg ? [hls prompts : Unable to open key file skd:xxxxxxx]

  18 octobre 2024, par Mam Ghagh

  I am newbie in programming and need help.
  
Story and Question -> I have a m3u8 manifest like :

  


  #EXTM3U
#EXT-X-VERSION:5
#EXT-X-TARGETDURATION:7
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-KEY:METHOD=SAMPLE-AES,URI="skd://xxxxxx",IV=yyyyyyy,KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1"
#EXTINF:6,
https://someurl.com/index_1_0.ts
#EXTINF:6,
https://someurl.com/index_2_0.ts
...


  


  which is available on https://someurl.com/my.m3u8
  
So, When I executed ffmpeg command
  
ffmpeg -i "https://someurl.com/my.m3u8" -c copy out.mp4
  
the following message appeared
  
[hls @ 000002de75f89bc0] Unable to open key file skd://xxxxxx
  
Now the question is, How should I address the key ? Should I save the key into a file and address it in the m3u8 manifest ? or any other answer ?

  


• Download m3u8 video from web page with authorization

  31 août 2024, par maya_soloveva

  I try download m3u8 video from webpage with access by authorization.

  


  I use ffmpeg command.
I get headers from network tab.

  


  ffmpeg -y -loglevel verbose -headers "$(cat headers.txt)" -i "https://apps.foxford.ru/webinar-foxford/storage/api/v2/backends/yandex/sets/hls.webinar.foxford.ru::420e27e1-1c7d-43e9-9195-fc8b99e6f50a/objects/long.v2.yandex.video.360p.master.m3u8" output2.mp4 -c copy -f mp4 file:foxford_01.mp4.part


  


  headers.txt content :

  


  Host: apps.foxford.ru
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:129.0) Gecko/20100101 Firefox/129.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate, br, zstd
Referer: https://apps.foxford.ru/webinar/?audience=foxford.ru&brand=foxford&embedded_origin=https%3A%2F%2Ffoxford.ru&external_id=5aefae2d-e810-49ef-8344-d3807535fd9e&lesson_id=250799&scope=Z2lkOi8vc3RvZWdlL1VsbXM6OlJvb21zOjpXZWJpbmFyLzUwNDcwMA&utm_referrer=https%3A%2F%2Ffoxford.ru%2Fcourses%2F9193%2Flessons%2F250799&backurl=https%253A%252F%252Fapps%252Efoxford%252Eru%252Fapi%252Fv1%252Fredirs%252Faudiences%252Ffoxford%252Eru%252Fapps%252Fwebinar
DNT: 1
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
authorization: Bearer eyJhbGciOiJFUzI1NiJ9.eyJleHAiOjE3MjUwODU1MzUsImlzcyI6InN2Yy5mb3hmb3JkLnJ1IiwiYXVkIjoidXNyLmZveGZvcmQucnUiLCJzdWIiOiJaMmxrT2k4dmMzUnZaV2RsTDFWelpYSTZPbEIxY0dsc0x6RXdPRFU0TXpJeSJ9.NE9IsraTHFKicr3lkjzTTEkGLoGP-bL74nlX1umcPjC62h9MGXjPUFXL53jsnixd7b-WPtIc8N2WhsC6Ipt8IQ
Connection: keep-alive
Cookie: _csrf_token=%2Ba0goi1UnpRzFxpPOIbnZBaxtY0YUlZyBnyGohC5NbfBaVzLvwpEtM0x%2BjEPvJqJrcvsy2qMZHTStvusdxeUmQ%3D%3D; advcake_trackid=4b724357-eb38-b2f0-6919-4a4363aef58a; _tm_lt_sid=1720871531732.305536; client_timezone=Europe/Moscow; _ga=GA1.2.506102438.1720871532; tmr_lvid=7b674da8235ea642c3bfacf244eeae53; tmr_lvidTS=1720871533984; _ym_uid=1720871534834198811; _ym_d=1720871534; _tt_enable_cookie=1; _ttp=El4ZowXxQWdsnA31_DDrCt_AT_4; popmechanic_sbjs_migrations=popmechanic_1418474375998%3D1%7C%7C%7C1471519752600%3D1%7C%7C%7C1471519752605%3D1; _foxford_cookie_consent=yes; advcake_session_id=2fb2830e-9b68-2529-f9e4-2dec39973ef9; adtech_uid=ba6ca4c8-055a-4f46-b06c-6df09c20e8a4%3Afoxford.ru; top100_id=t1.7729862.2001929594.1723667001899; t3_sid_7729862=s1.1788907302.1725084603508.1725085234295.9.11; _ym_isad=2; mindboxDeviceUUID=9d785862-f8db-4ba8-b7bc-ccd9dbba98e1; directCrm-session=%7B%22deviceGuid%22%3A%229d785862-f8db-4ba8-b7bc-ccd9dbba98e1%22%7D; qrator_jsid=1725084559.622.G14rJEU37yUAYfzF-0l4eiu40m3uudgv95tu3faluhe7up6nv; mindboxSessionIsOpen=true
Priority: u=4
Pragma: no-cache
Cache-Control: no-cache
TE: trailers


  


  ffmpeg returns HTTP error Server returned 401 Unauthorized (authorization failed) :

  


  

  


  Headers from network tab :


  


• Firebase and FFmpeg : Download URL error for videos longer than one hour

  11 août 2024, par braunlich

  Summary of the problem : I'm developing a video processing feature in a React application that uses Firebase as the backend. The video file uploads to Firebase Storage without issues. However, when attempting to use FFmpeg to extract the audio as a FLAC file, the process works for videos under an hour but fails for longer videos, producing the error : "Error : File could not be read ! Code=-1".

  


  Code context : The issue occurs during the process of grabbing the video URL from Firebase Storage and extracting audio using FFmpeg. Here is the code snippet :

  


  try {
const videoDownloadURL = await getDownloadURL(uploadTask.snapshot.ref);
console.log('Video file available at', videoDownloadURL);

await ffmpeg.load();
await ffmpeg.writeFile(file.name, await fetchFile(file));
await ffmpeg.exec(['-i', file.name, '-q:a', '0', '-map', 'a', '-ac', '1', 'output.flac']); // Ensuring mono channel
const audioData = await ffmpeg.readFile('output.flac');
const audioBlob = new Blob([audioData.buffer], { type: 'audio/flac' });
const audioStorageRef = ref(storage, `${user.uid}/${videoId}.flac`);
const audioUploadTask = uploadBytesResumable(audioStorageRef, audioBlob, {
    contentType: 'audio/flac',
    customMetadata: {
        uploadedBy: user.uid,
        videoId: videoId
    }
});

audioUploadTask.on('state_changed',
    (snapshot) => {
        const audioProgress = Math.round((snapshot.bytesTransferred / snapshot.totalBytes) * 100 * 0.1);
        setUploadProgress(Math.round(videoProgress + audioProgress));
        console.log(`Audio upload progress: ${Math.round(audioProgress)}%`);
    },
    (error) => {
        console.error("Audio upload error:", error);
    },
    async () => {
        try {
            const audioDownloadURL = await getDownloadURL(audioUploadTask.snapshot.ref);
            console.log('Audio file available at', audioDownloadURL);
            audioUploadComplete = true;
        } catch (error) {
            console.error("Audio download URL error:", error);
        }
    }
);

} catch (error) { console.error("Download URL error:", error); }


  


  Issue description : The above code successfully extracts audio from videos shorter than one hour. However, for videos around two to three hours long, the code breaks with the following error message :
error code

  


  I suspect this might be related to FFmpeg or Firebase's handling of larger files, but I'm not sure how to debug this further or what adjustments to make.

  


  Research and attempts :

  


  I've confirmed that the video files are successfully uploaded to Firebase Storage.

  


  The issue appears to be related to either the FFmpeg processing or the retrieval of the download URL for larger files.

  


  I've searched for similar issues but haven't found a solution specific to handling larger video files with FFmpeg and Firebase.

  


  Request for help :

  


  Any insights on why this error might be occurring for larger files ? Suggestions for debugging or modifying the code to handle larger videos efficiently.