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Pass arguments to ffmpeg #23745

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opened 2026-02-21 12:57:03 -05:00 by deekerman · 8 comments

deekerman commented

2026-02-21 12:57:03 -05:00

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Originally created by @suntong on GitHub (May 18, 2021).

Checklist

I'm asking a question
I've looked through the README and FAQ for similar questions
I've searched the bugtracker for similar questions including closed ones

Question

Is it possible to pass arguments to ffmpeg directly from youtube-dl cli?

I did some search, and have found one example in the python code level, but I'm wondering if it is possible from youtube-dl cli.

The use case is, for --extract-audio to convert video files to audio-only files, or doing audio-only downloading, it'll be super if I can increase the audio volume using ffmpeg option on the fly, instead of me doing it again afterwards.

I don't know if it is even possible, so I'm just asking. thx

Originally created by @suntong on GitHub (May 18, 2021). ## Checklist  - [x] I'm asking a question - [x] I've looked through the README and FAQ for similar questions - [x] I've searched the bugtracker for similar questions including closed ones ## Question Is it possible to pass arguments to ffmpeg directly from youtube-dl cli? I did some search, and have found [one example in the python code level](https://www.reddit.com/r/youtubedl/comments/j68jd2/how_can_i_pass_arguments_to_ffmpeg_to_use_on/), but I'm wondering if it is possible from youtube-dl cli. The use case is, for `--extract-audio` to convert video files to audio-only files, or doing audio-only downloading, it'll be super if I can increase the audio volume using ffmpeg option on the fly, instead of me doing it again afterwards. I don't know if it is even possible, so I'm just asking. thx

deekerman added the

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2026-02-21 12:57:03 -05:00

deekerman commented

2026-02-21 12:57:07 -05:00

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@pukkandan commented on GitHub (May 19, 2021):

--postprocessor-args

@pukkandan commented on GitHub (May 19, 2021): `--postprocessor-args`

deekerman commented

2026-02-21 12:57:07 -05:00

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@suntong commented on GitHub (May 20, 2021):

Thanks.

Just even having used -v I cannot really tell if my option has been passed to ffmpeg or not.
Anyway, thanks.

@suntong commented on GitHub (May 20, 2021): Thanks. Just even having used `-v` I cannot really tell if my option has been passed to ffmpeg or not. Anyway, thanks.

deekerman commented

2026-02-21 12:57:07 -05:00

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@shortthirdman commented on GitHub (Nov 30, 2021):

--postprocessor-args

Hey @pukkandan but using this nothing is being passed after using -v for verbosity.

@shortthirdman commented on GitHub (Nov 30, 2021): > `--postprocessor-args` Hey @pukkandan but using this nothing is being passed after using `-v` for verbosity.

deekerman commented

2026-02-21 12:57:07 -05:00

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@suntong commented on GitHub (Nov 30, 2021):

Agree, nothing is being passed.

Thanks the for the confirmation, thus, reopening the issue.

@suntong commented on GitHub (Nov 30, 2021): Agree, nothing is being passed. Thanks the for the confirmation, thus, reopening the issue.

deekerman commented

2026-02-21 12:57:07 -05:00

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@ghost commented on GitHub (Nov 30, 2021):

Please provide the verbose log.

@ghost commented on GitHub (Nov 30, 2021): Please provide the verbose log.

deekerman commented

2026-02-21 12:57:08 -05:00

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Owner

@UliGall commented on GitHub (Dec 4, 2021):

I am trying to download a video, but the audio is empty, so I wanted to set analyzeduration and probesize higher (as recommended), to a value referenced here. I assumed that it should be able to do that with --postprocessor-args, which it seems does not work.

I executed following command (Ubuntu 20.04 on WSL2):
youtube-dl https://URL_REPLACED/video_1629/1806/1806.m3u8 --postprocessor-args "-analyzeduration 2147483647 -probesize 2147483647" -v

Respective result @kikuyan:

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://URL_REPLACED/video_1629/1806/1806.m3u8', '--postprocessor-args', '-analyzeduration 2147483647 -probesize 2147483647', '-v']
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8
[debug] youtube-dl version 2021.06.06
[debug] Python version 3.8.10 (CPython) - Linux-5.10.16.3-microsoft-standard-WSL2-x86_64-with-glibc2.29
[debug] exe versions: ffmpeg 4.2.4, ffprobe 4.2.4
[debug] Proxy map: {}
[generic] 1806: Requesting header
[generic] 1806: Downloading m3u8 information
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'https://URL_REPLACED/video_1629/1806/1806_hls.m3u8'
[download] Destination: 1806-1806.mp4
[debug] ffmpeg command line: ffmpeg -y -loglevel verbose -headers 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.15 Safari/537.36
Accept-Charset: ISO-8859-1,utf-8;q=0.7,;q=0.7
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: en-us,en;q=0.5
' -i https://URL_REPLACED/video_1629/1806/1806_hls.m3u8 -c copy -f mp4 file:1806-1806.mp4.part
ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
[tcp @ 0x5591834155c0] Starting connection attempt to 54.192.100.216 port 443
[tcp @ 0x5591834155c0] Successfully connected to 54.192.100.216 port 443
[hls @ 0x559183412500] Skip ('#EXT-X-VERSION:3')
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00001.ts', offset 0, playlist 0
[hls @ 0x559183412500] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00001.ts' for reading
[tcp @ 0x5591836ecd00] Starting connection attempt to 54.192.100.216 port 443
[tcp @ 0x5591836ecd00] Successfully connected to 54.192.100.216 port 443
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00002.ts', offset 0, playlist 0
[hls @ 0x559183412500] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00002.ts' for reading
[tcp @ 0x559183712080] Starting connection attempt to 54.192.100.216 port 443
[tcp @ 0x559183712080] Successfully connected to 54.192.100.216 port 443
[h264 @ 0x559183a015c0] Reinit context to 1920x1088, pix_fmt: yuv420p
[hls @ 0x559183412500] max_analyze_duration 5000000 reached at 5005000 microseconds st:0
[hls @ 0x559183412500] Could not find codec parameters for stream 1 (Audio: aac ([15][0][0][0] / 0x000F), 0 channels, fltp): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, hls, from 'https://URL_REPLACED/video_1629/1806/1806_hls.m3u8':
Duration: 00:04:37.00, start: 2.033367, bitrate: 0 kb/s
Program 0
Metadata:
variant_bitrate : 0
Stream #0:0: Video: h264 (High), 1 reference frame ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, left), 1920x1080 (1920x1088) [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Metadata:
variant_bitrate : 0
Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 0 channels, fltp
Metadata:
variant_bitrate : 0
Output #0, mp4, to 'file:1806-1806.mp4.part':
Metadata:
encoder : Lavf58.29.100
Stream #0:0: Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(tv, bt709, left), 1920x1080 (0x0) [SAR 1:1 DAR 16:9], q=2-31, 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc
Metadata:
variant_bitrate : 0
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00003.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00003.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00004.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00004.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00005.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00005.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00006.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00006.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00007.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00007.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00008.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00008.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00009.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00009.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00010.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00010.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00011.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00011.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00012.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00012.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00013.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00013.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00014.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00014.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00015.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00015.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00016.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00016.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00017.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00017.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00018.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00018.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00019.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00019.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00020.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00020.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00021.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00021.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00022.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00022.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00023.ts', offset 0, playlist 0
[https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00023.ts' for reading
[hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00024.ts', offset 0, playlist 0
[https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00024.ts' for reading
No more output streams to write to, finishing.
frame= 8296 fps=4509 q=-1.0 Lsize= 7528kB time=00:04:36.74 bitrate= 222.9kbits/s speed= 150x
video:7431kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.316245%
Input file #0 (https://URL_REPLACED/video_1629/1806/1806_hls.m3u8):
Input stream #0:0 (video): 8296 packets read (7608919 bytes);
Input stream #0:1 (audio): 12975 packets read (4428800 bytes);
Total: 21271 packets (12037719 bytes) demuxed
Output file #0 (file:1806-1806.mp4.part):
Output stream #0:0 (video): 8296 packets muxed (7608919 bytes);
Total: 8296 packets (7608919 bytes) muxed
[AVIOContext @ 0x559183e0bc40] Statistics: 2 seeks, 33 writeouts
[AVIOContext @ 0x559183a03040] Statistics: 6142524 bytes read, 0 seeks
[AVIOContext @ 0x55918370c9c0] Statistics: 7371668 bytes read, 0 seeks
[AVIOContext @ 0x5591836f0140] Statistics: 833 bytes read, 0 seeks
[ffmpeg] Downloaded 7709071 bytes
[download] 100% of 7.35MiB in 00:02

Thanks in advance!

@UliGall commented on GitHub (Dec 4, 2021): I am trying to download a video, but the audio is empty, so I wanted to set `analyzeduration` and `probesize` higher (as recommended), to a value referenced [here](https://stackoverflow.com/questions/11659267/ffmpeg-10-04-could-not-find-codec-parameters). I assumed that it should be able to do that with `--postprocessor-args`, which it seems does not work. I executed following command (Ubuntu 20.04 on WSL2): `youtube-dl https://URL_REPLACED/video_1629/1806/1806.m3u8 --postprocessor-args "-analyzeduration 2147483647 -probesize 2147483647" -v` Respective result @kikuyan: > [debug] System config: [] > [debug] User config: [] > [debug] Custom config: [] > [debug] Command-line args: ['https://URL_REPLACED/video_1629/1806/1806.m3u8', '--postprocessor-args', '-analyzeduration 2147483647 -probesize 2147483647', '-v'] > [debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8 > [debug] youtube-dl version 2021.06.06 > [debug] Python version 3.8.10 (CPython) - Linux-5.10.16.3-microsoft-standard-WSL2-x86_64-with-glibc2.29 > [debug] exe versions: ffmpeg 4.2.4, ffprobe 4.2.4 > [debug] Proxy map: {} > [generic] 1806: Requesting header > [generic] 1806: Downloading m3u8 information > [debug] Default format spec: bestvideo+bestaudio/best > [debug] Invoking downloader on 'https://URL_REPLACED/video_1629/1806/1806_hls.m3u8' > [download] Destination: 1806-1806.mp4 > [debug] ffmpeg command line: ffmpeg -y -loglevel verbose -headers 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.15 Safari/537.36 > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 > Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 > Accept-Encoding: gzip, deflate > Accept-Language: en-us,en;q=0.5 > ' -i https://URL_REPLACED/video_1629/1806/1806_hls.m3u8 -c copy -f mp4 file:1806-1806.mp4.part > ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers > built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) > configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared > libavutil 56. 31.100 / 56. 31.100 > libavcodec 58. 54.100 / 58. 54.100 > libavformat 58. 29.100 / 58. 29.100 > libavdevice 58. 8.100 / 58. 8.100 > libavfilter 7. 57.100 / 7. 57.100 > libavresample 4. 0. 0 / 4. 0. 0 > libswscale 5. 5.100 / 5. 5.100 > libswresample 3. 5.100 / 3. 5.100 > libpostproc 55. 5.100 / 55. 5.100 > [tcp @ 0x5591834155c0] Starting connection attempt to 54.192.100.216 port 443 > [tcp @ 0x5591834155c0] Successfully connected to 54.192.100.216 port 443 > [hls @ 0x559183412500] Skip ('#EXT-X-VERSION:3') > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00001.ts', offset 0, playlist 0 > [hls @ 0x559183412500] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00001.ts' for reading > [tcp @ 0x5591836ecd00] Starting connection attempt to 54.192.100.216 port 443 > [tcp @ 0x5591836ecd00] Successfully connected to 54.192.100.216 port 443 > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00002.ts', offset 0, playlist 0 > [hls @ 0x559183412500] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00002.ts' for reading > [tcp @ 0x559183712080] Starting connection attempt to 54.192.100.216 port 443 > [tcp @ 0x559183712080] Successfully connected to 54.192.100.216 port 443 > [h264 @ 0x559183a015c0] Reinit context to 1920x1088, pix_fmt: yuv420p > [hls @ 0x559183412500] max_analyze_duration 5000000 reached at 5005000 microseconds st:0 > [hls @ 0x559183412500] Could not find codec parameters for stream 1 (Audio: aac ([15][0][0][0] / 0x000F), 0 channels, fltp): unspecified sample rate > Consider increasing the value for the 'analyzeduration' and 'probesize' options > Input #0, hls, from 'https://URL_REPLACED/video_1629/1806/1806_hls.m3u8': > Duration: 00:04:37.00, start: 2.033367, bitrate: 0 kb/s > Program 0 > Metadata: > variant_bitrate : 0 > Stream #0:0: Video: h264 (High), 1 reference frame ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, left), 1920x1080 (1920x1088) [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc > Metadata: > variant_bitrate : 0 > Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 0 channels, fltp > Metadata: > variant_bitrate : 0 > Output #0, mp4, to 'file:1806-1806.mp4.part': > Metadata: > encoder : Lavf58.29.100 > Stream #0:0: Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(tv, bt709, left), 1920x1080 (0x0) [SAR 1:1 DAR 16:9], q=2-31, 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc > Metadata: > variant_bitrate : 0 > Stream mapping: > Stream #0:0 -> #0:0 (copy) > Press [q] to stop, [?] for help > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00003.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00003.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00004.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00004.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00005.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00005.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00006.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00006.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00007.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00007.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00008.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00008.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00009.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00009.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00010.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00010.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00011.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00011.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00012.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00012.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00013.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00013.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00014.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00014.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00015.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00015.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00016.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00016.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00017.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00017.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00018.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00018.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00019.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00019.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00020.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00020.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00021.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00021.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00022.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00022.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00023.ts', offset 0, playlist 0 > [https @ 0x5591836ea740] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00023.ts' for reading > [hls @ 0x559183412500] HLS request for url 'https://URL_REPLACED/video_1629/1806/1806_hls_00024.ts', offset 0, playlist 0 > [https @ 0x559183709a40] Opening 'https://URL_REPLACED/video_1629/1806/1806_hls_00024.ts' for reading > No more output streams to write to, finishing. > frame= 8296 fps=4509 q=-1.0 Lsize= 7528kB time=00:04:36.74 bitrate= 222.9kbits/s speed= 150x > video:7431kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.316245% > Input file #0 (https://URL_REPLACED/video_1629/1806/1806_hls.m3u8): > Input stream #0:0 (video): 8296 packets read (7608919 bytes); > Input stream #0:1 (audio): 12975 packets read (4428800 bytes); > Total: 21271 packets (12037719 bytes) demuxed > Output file #0 (file:1806-1806.mp4.part): > Output stream #0:0 (video): 8296 packets muxed (7608919 bytes); > Total: 8296 packets (7608919 bytes) muxed > [AVIOContext @ 0x559183e0bc40] Statistics: 2 seeks, 33 writeouts > [AVIOContext @ 0x559183a03040] Statistics: 6142524 bytes read, 0 seeks > [AVIOContext @ 0x55918370c9c0] Statistics: 7371668 bytes read, 0 seeks > [AVIOContext @ 0x5591836f0140] Statistics: 833 bytes read, 0 seeks > [ffmpeg] Downloaded 7709071 bytes > [download] 100% of 7.35MiB in 00:02 Thanks in advance!

deekerman commented

2026-02-21 12:57:08 -05:00

Author

Owner

@ghost commented on GitHub (Dec 4, 2021):

@UliGall
In your case, ffmpeg IS downloading, not post-processing. You can pass arguments with --external-downloader-args.

FYI.
There's a --hls-prefer-native option to make youtube-dl itself download HLS. However, using --hls-prefer-native and --postprocessor-args will give the same result as downloading with ffmpeg in your case. This is because youtube-dl is passing arguments to ffmpeg after input files.

@ghost commented on GitHub (Dec 4, 2021): @UliGall In your case, ffmpeg IS downloading, not post-processing. You can pass arguments with `--external-downloader-args`. FYI. There's a `--hls-prefer-native` option to make youtube-dl itself download HLS. However, using `--hls-prefer-native` and `--postprocessor-args` will give the same result as downloading with ffmpeg in your case. This is because youtube-dl is passing arguments to ffmpeg after input files.

deekerman commented

2026-02-21 12:57:08 -05:00

Author

Owner

@UliGall commented on GitHub (Dec 4, 2021):

Thanks @kikuyan, that solved (at least) my problem!

@UliGall commented on GitHub (Dec 4, 2021): Thanks @kikuyan, that solved (at least) my problem!

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