yt-dlp: [abciview] ERROR: Data must be padded to 16 byte boundary in CBC mode

@jamestfans what happens if you run the yt-dlp command with --downloader ffmpeg?

@0HAg0

Seems, you are using an different version of ffmpeg

Yes I’m running on version 6.1 from John’s static build

ffmpeg version N-68334-ga87a52ed0b-static

But seems to be fixed by using the ffmpeg you pointed to, you just have a typo in the links

https://github.com/yt-dlp/FFmpeg-Builds

Thanks for your response

Hi all, just to advise I have spotted this issue on SBS, another Australian government-funded channel (along with iView like others). It responds to the same fix of deleting the fragment file ending .part-FragN and re-running the command to pick up from the last accepted part.

Not fixed in yt-dlp 2022.07.18.

EDIT: [debug] Command-line config: [‘-fhls-617’, ‘-v’, ‘https://iview.abc.net.au/video/ZW1386A004S00’] [debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8 [debug] yt-dlp version 2022.07.18 [135f05e] (zip) [debug] Python 3.10.4 (CPython 64bit) - Linux-5.18.10-76051810-generic-x86_64-with-glibc2.35 (glibc 2.35) [debug] Checking exe version: ffmpeg -bsfs [debug] Checking exe version: ffprobe -bsfs [debug] exe versions: ffmpeg 4.4.2 (setts), ffprobe 4.4.2, rtmpdump 2.4 [debug] Optional libraries: Cryptodome-3.11.0, brotli-1.0.9, certifi-2020.06.20, pyxattr-0.7.2, secretstorage-3.3.1, sqlite3-2.6.0 [debug] Proxy map: {} [debug] Using fake IP 1.153.251.4 (AU) as X-Forwarded-For [debug] [abc.net.au:iview] Extracting URL: https://iview.abc.net.au/video/ZW1386A004S00 [abc.net.au:iview] ZW1386A004S00: Downloading JSON metadata [abc.net.au:iview] ZW1386A004S00: Downloading webpage [abc.net.au:iview] ZW1386A004S00: Downloading m3u8 information WARNING: [abc.net.au:iview] Ignoring subtitle tracks found in the HLS manifest; if any subtitle tracks are missing, please report this issue on https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using yt-dlp -U [debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, hdr:12(7), vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id [info] ZW1386A004S00: Downloading 1 format(s): hls-617 [debug] Invoking hlsnative downloader on “https://iview-vod-hls.akamaized.net/prod/zw1/ZW1386A004S00MA1D1/20220201025049/hls/500000/hdntl=exp=1658632067~acl=%2F*~data=hdntl~hmac=4a8b2c00afb4b2a8997543173532567822874eadf115262d5d41324204e2e733/stream.m3u8?aka_me_session_id=AAAAAAAAAACDt9xiAAAAAA8Y3yvRdIJqTTCBAtM6fr3EheE8edX%2FjpYlRXMFbHOtUPZ75bg%2F8+XiIizBZ5rI5k1ftBZx%2FGdp&aka_media_format_type=hls” [hlsnative] Downloading m3u8 manifest [hlsnative] Total fragments: 354 [download] Destination: Series 9 Ep 4 Episode 4 [ZW1386A004S00].mp4 [download] 1.4% of ~261.28MiB at 130.86KiB/s ETA 27:20 (frag 4/354)[download] Got server HTTP error: The read operation timed out. Retrying (attempt 1 of 10) … [download] 1.4% of ~261.28MiB at 29.71KiB/s ETA 51:11 (frag 5/354)ERROR: Data must be padded to 16 byte boundary in CBC mode Traceback (most recent call last): File “/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py”, line 1431, in wrapper return func(self, *args, **kwargs) File “/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py”, line 1521, in __extract_info return self.process_ie_result(ie_result, download, extra_info) File “/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py”, line 1578, in process_ie_result ie_result = self.process_video_result(ie_result, download=download) File “/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py”, line 2661, in process_video_result self.process_info(new_info) File “/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py”, line 3160, in process_info success, real_download = self.dl(temp_filename, info_dict) File “/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py”, line 2860, in dl return fd.download(name, new_info, subtitle) File “/usr/local/bin/yt-dlp/yt_dlp/downloader/common.py”, line 444, in download ret = self.real_download(filename, info_dict) File “/usr/local/bin/yt-dlp/yt_dlp/downloader/hls.py”, line 354, in real_download return self.download_and_append_fragments(ctx, fragments, info_dict) File “/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py”, line 526, in download_and_append_fragments decrypt_fragment(fragment, self._read_fragment(ctx)), fragment[‘frag_index’], ctx) File “/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py”, line 360, in decrypt_fragment return unpad_pkcs7(aes_cbc_decrypt_bytes(frag_content, decrypt_info[‘KEY’], iv)) File “/usr/local/bin/yt-dlp/yt_dlp/aes.py”, line 11, in aes_cbc_decrypt_bytes return Cryptodome_AES.new(key, Cryptodome_AES.MODE_CBC, iv).decrypt(data) File “/usr/lib/python3/dist-packages/Cryptodome/Cipher/_mode_cbc.py”, line 246, in decrypt raise ValueError(“Data must be padded to %d byte boundary in CBC mode” % self.block_size) ValueError: Data must be padded to 16 byte boundary in CBC mode

Rerunning command bombs on different fragment, suggesting not a problem with source file?

EDIT: @sofa-singer said above that “–downloader aria2c --hls-use-mpegts” worked for him. It doesn’t for me.

EDIT: Using “–downloader ffmpeg” seems to work reliably for me.

@gamer191, running with --downloader ffmpeg worked.

And thank you for the tip on the updates. I took care of that.