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Does "--limit-rate" work when extraction is delegated to FFmpeg ? #22446

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opened 2026-02-21 12:18:06 -05:00 by deekerman · 2 comments

deekerman commented

2026-02-21 12:18:06 -05:00

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Originally created by @section83 on GitHub (Dec 30, 2020).

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

I have found that when extraction is delegated to FFmpeg, the "--limit-rate" setting does not function. Downloads are not slowed. I have attached the verbose log for an example.

youtube-dl_response-Gracepoint_-_S1_Ep._1-Wednesday_30_December_2020_at_9_37_48_pm.txt

I think the relevant part is the report from FFmpeg that it downloaded 449.87MiB in 1:44 – which is about the maximum my broadband provides at present. I confirmed that by watching download speed reported by a macOS tool LittleSnitch which showed download in the 4-5MB/s range. The audio component following was downloaded at around 1MB/sec which is the limit set in the call to youtube-dl.

So, it looks like "--limit-rate" does not work when extraction is delegated to FFmpeg. Is that correct ? Are there other situations in which "--limit-rate" does not function ?

The log is very long so, here are the highlights:

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--ignore-errors', u'--newline', u'--no-overwrites', u'--limit-rate', u'1.0m', u'--verbose', u'-o', u'%(title)s.%(ext)s', u'https://10play.com.au/gracepoint/episodes/season-1/episode-1/tpv201115lygfc']
[debug] Encodings: locale US-ASCII, fs utf-8, out None, pref US-ASCII
[debug] youtube-dl version 2020.12.29
[debug] Python version 2.7.16 (CPython) - Darwin-19.6.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.3.1-tessus, ffprobe 4.3.1-tessus
[debug] Proxy map: {}
[TenPlay] tpv201115lygfc: Downloading JSON metadata
[debug] Using fake IP 1.146.243.159 (AU) as X-Forwarded-For.
[brightcove:new] 6206806786001: Downloading JSON metadata
[brightcove:new] 6206806786001: Downloading m3u8 information
[brightcove:new] 6206806786001: Downloading m3u8 information
[brightcove:new] 6206806786001: Downloading m3u8 information
[brightcove:new] 6206806786001: Downloading m3u8 information
[brightcove:new] 6206806786001: Downloading MPD manifest
[brightcove:new] 6206806786001: Downloading MPD manifest
[brightcove:new] 6206806786001: Downloading MPD manifest
[brightcove:new] 6206806786001: Downloading MPD manifest
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on u'https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/10s/rendition.m3u8?fastly_token=NWZlY2IxNjJfNWU5YTg1MWJjYWU5NjFiZjYyMThjYzVjZDk4OTc0MDlkZTI1NGJlN2E2MWUwYTEyNDJhN2YxZmE0YWI0NzgxYw%3D%3D'
[hlsnative] Downloading m3u8 manifest
WARNING: hlsnative has detected features it does not support, extraction will be delegated to ffmpeg
[download] Destination: Gracepoint - S1 Ep. 1.fhls-1710-1.mp4
[debug] ffmpeg command line: ffmpeg -y -loglevel verbose -headers 'Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip, deflate
X-Forwarded-For: 1.146.243.159
Accept: application/json;pk=BCpkADawqM3LrTsmy4tDkB6PwE5QiKnkQF0gsdyOVDmJNyCmpHG8FbEekN-V2-y5KmH5nyVJ-8HVv9rMX37nUed-zfUhOFiHwA3XhW35sjvr_qk92T8f2dbdA9vLN-wzvdaChZeUqcj3wQOf
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3563.0 Safari/537.36
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
' -i 'https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/10s/rendition.m3u8?fastly_token=NWZlY2IxNjJfNWU5YTg1MWJjYWU5NjFiZjYyMThjYzVjZDk4OTc0MDlkZTI1NGJlN2E2MWUwYTEyNDJhN2YxZmE0YWI0NzgxYw%3D%3D' -c copy -f mp4 'file:Gracepoint - S1 Ep. 1.fhls-1710-1.mp4.part'
ffmpeg version 4.3.1-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2000-2020 the FFmpeg developers
built with Apple clang version 11.0.0 (clang-1100.0.33.17)
configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
[tcp @ 0x7f868a604740] Starting connection attempt to 151.101.30.27 port 443
[tcp @ 0x7f868a604740] Successfully connected to 151.101.30.27 port 443
[hls @ 0x7f868c008a00] Skip ('#EXT-X-VERSION:3')
[hls @ 0x7f868c008a00] HLS request for url 'https://bcboltnet10tp.global.ssl.fastly.net/media/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/19dd4404-6de2-4233-a083-7e599cffcaf7/5x/segment0.ts', offset 0, playlist 0
[hls @ 0x7f868c008a00] Opening 'https://manifest.prod.boltdns.net/license/v1/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/19dd4404-6de2-4233-a083-7e599cffcaf7?fastly_token=NWZlY2IxNjdfOTYzM2IwYWQ0NzE1M2ExNDRlYjlhNGJkM2E2ZGJlOTg3NmQwNGFjODE3ODE0ZjUxZTE3MTM1YWNkNjBlNTgxZg%3D%3D' for reading
[tcp @ 0x7f868a610780] Starting connection attempt to 151.101.30.27 port 443
[tcp @ 0x7f868a610780] Successfully connected to 151.101.30.27 port 443
[AVIOContext @ 0x7f868a534f00] Statistics: 16 bytes read, 0 seeks
[hls @ 0x7f868c008a00] Opening 'crypto+https://bcboltnet10tp.global.ssl.fastly.net/media/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/19dd4404-6de2-4233-a083-7e599cffcaf7/5x/segment0.ts' for reading
[tcp @ 0x7f868a610940] Starting connection attempt to 151.101.29.194 port 443
[tcp @ 0x7f868a610940] Successfully connected to 151.101.29.194 port 443
[h264 @ 0x7f868b01d200] Reinit context to 1024x576, pix_fmt: yuv420p
[hls @ 0x7f868c008a00] max_analyze_duration 5000000 reached at 5000000 microseconds st:0
Input #0, hls, from 'https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/10s/rendition.m3u8?fastly_token=NWZlY2IxNjJfNWU5YTg1MWJjYWU5NjFiZjYyMThjYzVjZDk4OTc0MDlkZTI1NGJlN2E2MWUwYTEyNDJhN2YxZmE0YWI0NzgxYw%3D%3D':
Duration: 00:42:05.32, start: 0.000000, bitrate: 0 kb/s
Program 0
Metadata:
variant_bitrate : 0
Stream #0:0: Video: h264 (Main), 1 reference frame ([27][0][0][0] / 0x001B), yuv420p(left), 1024x576 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Metadata:
variant_bitrate : 0
Output #0, mp4, to 'file:Gracepoint - S1 Ep. 1.fhls-1710-1.mp4.part':
Metadata:
encoder : Lavf58.45.100
Stream #0:0: Video: h264 (Main), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1024x576 (0x0) [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 25 tbr, 90k tbn, 90k tbc
Metadata:
variant_bitrate : 0
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[AVIOContext @ 0x7f868a530bc0] Statistics: 1417144 bytes read, 0 seeks
[hls @ 0x7f868c008a00] HLS request for url 'https://bcboltnet10tp.global.ssl.fastly.net/media/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/19dd4404-6de2-4233-a083-7e599cffcaf7/5x/segment1.ts', offset 0, playlist 0
[hls @ 0x7f868c008a00] Opening 'crypto+https://bcboltnet10tp.global.ssl.fastly.net/media/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/19dd4404-6de2-4233-a083-7e599cffcaf7/5x/segment1.ts' for reading

......

tcp @ 0x7f868a546c40] Starting connection attempt to 151.101.29.194 port 443
[tcp @ 0x7f868a546c40] Successfully connected to 151.101.29.194 port 443
frame=63069 fps=611 q=-1.0 size= 459776kB time=00:42:02.72 bitrate=1493.0kbits/s speed=24.4x
[AVIOContext @ 0x7f868a41ba00] Statistics: 1116344 bytes read, 0 seeks
No more output streams to write to, finishing.
Not writing 'clli' atom. No content light level info.
Not writing 'mdcv' atom. Missing mastering metadata.
frame=63133 fps=611 q=-1.0 Lsize= 460670kB time=00:42:05.28 bitrate=1494.4kbits/s speed=24.5x
video:460339kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.071883%
Input file #0 (https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/10s/rendition.m3u8?fastly_token=NWZlY2IxNjJfNWU5YTg1MWJjYWU5NjFiZjYyMThjYzVjZDk4OTc0MDlkZTI1NGJlN2E2MWUwYTEyNDJhN2YxZmE0YWI0NzgxYw%3D%3D):
Input stream #0:0 (video): 63133 packets read (471387207 bytes);
Total: 63133 packets (471387207 bytes) demuxed
Output file #0 (file:Gracepoint - S1 Ep. 1.fhls-1710-1.mp4.part):
Output stream #0:0 (video): 63133 packets muxed (471387207 bytes);
Total: 63133 packets (471387207 bytes) muxed
[AVIOContext @ 0x7f868a40fcc0] Statistics: 14 seeks, 1811 writeouts
[AVIOContext @ 0x7f868a70a7c0] Statistics: 57256 bytes read, 0 seeks

[ffmpeg] Downloaded 471726054 bytes
[download] 100% of 449.87MiB in 01:44
[download] 100% of 449.87MiB in 01:44
[debug] Invoking downloader on u'https://manifest.prod.boltdns.net/manifest/v1/dash/live-hbbtv15/clear/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/6s/manifest.mpd?fastly_token=NWZlY2IxNjJfZGViZWIyMWQzNzg4NTg2MjZmZTIzMWZlM2RjMDBlZmNjNTUwZDMxNjQzZDU4YTJkYmVhNTUzYmNiMWU1OTA0ZQ%3D%3D'
[dashsegments] Total fragments: 423
[download] Destination: Gracepoint - S1 Ep. 1.fdash-32582342-4ebd-4bfb-8b84-c90fc3981b79-3.m4a

.....

[download] 100.0% of ~39.38MiB at 939.51KiB/s ETA 00:00
[download] 100% of 39.38MiB in 01:08
[ffmpeg] Merging formats into "Gracepoint - S1 Ep. 1.mp4"
[debug] ffmpeg command line: ffmpeg -y -loglevel 'repeat+info' -i 'file:Gracepoint - S1 Ep. 1.fhls-1710-1.mp4' -i 'file:Gracepoint - S1 Ep. 1.fdash-32582342-4ebd-4bfb-8b84-c90fc3981b79-3.m4a' -c copy -map '0✌️0' -map '1🅰️0' 'file:Gracepoint - S1 Ep. 1.temp.mp4'
Deleting original file Gracepoint - S1 Ep. 1.fhls-1710-1.mp4 (pass -k to keep)
Deleting original file Gracepoint - S1 Ep. 1.fdash-32582342-4ebd-4bfb-8b84-c90fc3981b79-3.m4a (pass -k to keep)

Originally created by @section83 on GitHub (Dec 30, 2020).  ## 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  I have found that when extraction is delegated to FFmpeg, the "--limit-rate" setting does not function. Downloads are not slowed. I have attached the verbose log for an example. [youtube-dl_response-Gracepoint_-_S1_Ep._1-Wednesday_30_December_2020_at_9_37_48_pm.txt](https://github.com/ytdl-org/youtube-dl/files/5753908/youtube-dl_response-Gracepoint_-_S1_Ep._1-Wednesday_30_December_2020_at_9_37_48_pm.txt) I think the relevant part is the report from FFmpeg that it downloaded 449.87MiB in 1:44 – which is about the maximum my broadband provides at present. I confirmed that by watching download speed reported by a macOS tool LittleSnitch which showed download in the 4-5MB/s range. The audio component following was downloaded at around 1MB/sec which is the limit set in the call to youtube-dl. So, it looks like "--limit-rate" does not work when extraction is delegated to FFmpeg. Is that correct ? Are there other situations in which "--limit-rate" does not function ? The log is very long so, here are the highlights: > [debug] System config: [] [debug] User config: [] [debug] Custom config: [] [debug] Command-line args: [u'--ignore-errors', u'--newline', u'--no-overwrites', u'--limit-rate', u'1.0m', u'--verbose', u'-o', u'%(title)s.%(ext)s', u'https://10play.com.au/gracepoint/episodes/season-1/episode-1/tpv201115lygfc'] [debug] Encodings: locale US-ASCII, fs utf-8, out None, pref US-ASCII [debug] youtube-dl version 2020.12.29 [debug] Python version 2.7.16 (CPython) - Darwin-19.6.0-x86_64-i386-64bit [debug] exe versions: ffmpeg 4.3.1-tessus, ffprobe 4.3.1-tessus [debug] Proxy map: {} [TenPlay] tpv201115lygfc: Downloading JSON metadata [debug] Using fake IP 1.146.243.159 (AU) as X-Forwarded-For. [brightcove:new] 6206806786001: Downloading JSON metadata [brightcove:new] 6206806786001: Downloading m3u8 information [brightcove:new] 6206806786001: Downloading m3u8 information [brightcove:new] 6206806786001: Downloading m3u8 information [brightcove:new] 6206806786001: Downloading m3u8 information [brightcove:new] 6206806786001: Downloading MPD manifest [brightcove:new] 6206806786001: Downloading MPD manifest [brightcove:new] 6206806786001: Downloading MPD manifest [brightcove:new] 6206806786001: Downloading MPD manifest [debug] Default format spec: bestvideo+bestaudio/best [debug] Invoking downloader on u'https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/10s/rendition.m3u8?fastly_token=NWZlY2IxNjJfNWU5YTg1MWJjYWU5NjFiZjYyMThjYzVjZDk4OTc0MDlkZTI1NGJlN2E2MWUwYTEyNDJhN2YxZmE0YWI0NzgxYw%3D%3D' [hlsnative] Downloading m3u8 manifest WARNING: hlsnative has detected features it does not support, extraction will be delegated to ffmpeg [download] Destination: Gracepoint - S1 Ep. 1.fhls-1710-1.mp4 [debug] ffmpeg command line: ffmpeg -y -loglevel verbose -headers 'Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip, deflate X-Forwarded-For: 1.146.243.159 Accept: application/json;pk=BCpkADawqM3LrTsmy4tDkB6PwE5QiKnkQF0gsdyOVDmJNyCmpHG8FbEekN-V2-y5KmH5nyVJ-8HVv9rMX37nUed-zfUhOFiHwA3XhW35sjvr_qk92T8f2dbdA9vLN-wzvdaChZeUqcj3wQOf User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3563.0 Safari/537.36 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 ' -i 'https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/10s/rendition.m3u8?fastly_token=NWZlY2IxNjJfNWU5YTg1MWJjYWU5NjFiZjYyMThjYzVjZDk4OTc0MDlkZTI1NGJlN2E2MWUwYTEyNDJhN2YxZmE0YWI0NzgxYw%3D%3D' -c copy -f mp4 'file:Gracepoint - S1 Ep. 1.fhls-1710-1.mp4.part' ffmpeg version 4.3.1-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2000-2020 the FFmpeg developers built with Apple clang version 11.0.0 (clang-1100.0.33.17) configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay libavutil 56. 51.100 / 56. 51.100 libavcodec 58. 91.100 / 58. 91.100 libavformat 58. 45.100 / 58. 45.100 libavdevice 58. 10.100 / 58. 10.100 libavfilter 7. 85.100 / 7. 85.100 libswscale 5. 7.100 / 5. 7.100 libswresample 3. 7.100 / 3. 7.100 libpostproc 55. 7.100 / 55. 7.100 [tcp @ 0x7f868a604740] Starting connection attempt to 151.101.30.27 port 443 [tcp @ 0x7f868a604740] Successfully connected to 151.101.30.27 port 443 [hls @ 0x7f868c008a00] Skip ('#EXT-X-VERSION:3') [hls @ 0x7f868c008a00] HLS request for url 'https://bcboltnet10tp.global.ssl.fastly.net/media/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/19dd4404-6de2-4233-a083-7e599cffcaf7/5x/segment0.ts', offset 0, playlist 0 [hls @ 0x7f868c008a00] Opening 'https://manifest.prod.boltdns.net/license/v1/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/19dd4404-6de2-4233-a083-7e599cffcaf7?fastly_token=NWZlY2IxNjdfOTYzM2IwYWQ0NzE1M2ExNDRlYjlhNGJkM2E2ZGJlOTg3NmQwNGFjODE3ODE0ZjUxZTE3MTM1YWNkNjBlNTgxZg%3D%3D' for reading [tcp @ 0x7f868a610780] Starting connection attempt to 151.101.30.27 port 443 [tcp @ 0x7f868a610780] Successfully connected to 151.101.30.27 port 443 [AVIOContext @ 0x7f868a534f00] Statistics: 16 bytes read, 0 seeks [hls @ 0x7f868c008a00] Opening 'crypto+https://bcboltnet10tp.global.ssl.fastly.net/media/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/19dd4404-6de2-4233-a083-7e599cffcaf7/5x/segment0.ts' for reading [tcp @ 0x7f868a610940] Starting connection attempt to 151.101.29.194 port 443 [tcp @ 0x7f868a610940] Successfully connected to 151.101.29.194 port 443 [h264 @ 0x7f868b01d200] Reinit context to 1024x576, pix_fmt: yuv420p [hls @ 0x7f868c008a00] max_analyze_duration 5000000 reached at 5000000 microseconds st:0 Input #0, hls, from 'https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/10s/rendition.m3u8?fastly_token=NWZlY2IxNjJfNWU5YTg1MWJjYWU5NjFiZjYyMThjYzVjZDk4OTc0MDlkZTI1NGJlN2E2MWUwYTEyNDJhN2YxZmE0YWI0NzgxYw%3D%3D': Duration: 00:42:05.32, start: 0.000000, bitrate: 0 kb/s Program 0 Metadata: variant_bitrate : 0 Stream #0:0: Video: h264 (Main), 1 reference frame ([27][0][0][0] / 0x001B), yuv420p(left), 1024x576 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Metadata: variant_bitrate : 0 Output #0, mp4, to 'file:Gracepoint - S1 Ep. 1.fhls-1710-1.mp4.part': Metadata: encoder : Lavf58.45.100 Stream #0:0: Video: h264 (Main), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1024x576 (0x0) [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 25 tbr, 90k tbn, 90k tbc Metadata: variant_bitrate : 0 Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help [AVIOContext @ 0x7f868a530bc0] Statistics: 1417144 bytes read, 0 seeks [hls @ 0x7f868c008a00] HLS request for url 'https://bcboltnet10tp.global.ssl.fastly.net/media/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/19dd4404-6de2-4233-a083-7e599cffcaf7/5x/segment1.ts', offset 0, playlist 0 [hls @ 0x7f868c008a00] Opening 'crypto+https://bcboltnet10tp.global.ssl.fastly.net/media/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/19dd4404-6de2-4233-a083-7e599cffcaf7/5x/segment1.ts' for reading ...... >tcp @ 0x7f868a546c40] Starting connection attempt to 151.101.29.194 port 443 [tcp @ 0x7f868a546c40] Successfully connected to 151.101.29.194 port 443 frame=63069 fps=611 q=-1.0 size= 459776kB time=00:42:02.72 bitrate=1493.0kbits/s speed=24.4x [AVIOContext @ 0x7f868a41ba00] Statistics: 1116344 bytes read, 0 seeks No more output streams to write to, finishing. Not writing 'clli' atom. No content light level info. Not writing 'mdcv' atom. Missing mastering metadata. frame=63133 fps=611 q=-1.0 Lsize= 460670kB time=00:42:05.28 bitrate=1494.4kbits/s speed=24.5x video:460339kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.071883% Input file #0 (https://manifest.prod.boltdns.net/manifest/v1/hls/v4/aes128/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/4d6eb7e2-af93-4efb-a3d1-e26723e2fd15/10s/rendition.m3u8?fastly_token=NWZlY2IxNjJfNWU5YTg1MWJjYWU5NjFiZjYyMThjYzVjZDk4OTc0MDlkZTI1NGJlN2E2MWUwYTEyNDJhN2YxZmE0YWI0NzgxYw%3D%3D): Input stream #0:0 (video): 63133 packets read (471387207 bytes); Total: 63133 packets (471387207 bytes) demuxed Output file #0 (file:Gracepoint - S1 Ep. 1.fhls-1710-1.mp4.part): Output stream #0:0 (video): 63133 packets muxed (471387207 bytes); Total: 63133 packets (471387207 bytes) muxed [AVIOContext @ 0x7f868a40fcc0] Statistics: 14 seeks, 1811 writeouts [AVIOContext @ 0x7f868a70a7c0] Statistics: 57256 bytes read, 0 seeks >[ffmpeg] Downloaded 471726054 bytes [download] 100% of 449.87MiB in 01:44 [download] 100% of 449.87MiB in 01:44 [debug] Invoking downloader on u'https://manifest.prod.boltdns.net/manifest/v1/dash/live-hbbtv15/clear/2199827728001/3787c027-575b-4d96-ab03-2f1de7c25179/6s/manifest.mpd?fastly_token=NWZlY2IxNjJfZGViZWIyMWQzNzg4NTg2MjZmZTIzMWZlM2RjMDBlZmNjNTUwZDMxNjQzZDU4YTJkYmVhNTUzYmNiMWU1OTA0ZQ%3D%3D' [dashsegments] Total fragments: 423 [download] Destination: Gracepoint - S1 Ep. 1.fdash-32582342-4ebd-4bfb-8b84-c90fc3981b79-3.m4a ..... >[download] 100.0% of ~39.38MiB at 939.51KiB/s ETA 00:00 [download] 100% of 39.38MiB in 01:08 [ffmpeg] Merging formats into "Gracepoint - S1 Ep. 1.mp4" [debug] ffmpeg command line: ffmpeg -y -loglevel 'repeat+info' -i 'file:Gracepoint - S1 Ep. 1.fhls-1710-1.mp4' -i 'file:Gracepoint - S1 Ep. 1.fdash-32582342-4ebd-4bfb-8b84-c90fc3981b79-3.m4a' -c copy -map '0:v:0' -map '1:a:0' 'file:Gracepoint - S1 Ep. 1.temp.mp4' Deleting original file Gracepoint - S1 Ep. 1.fhls-1710-1.mp4 (pass -k to keep) Deleting original file Gracepoint - S1 Ep. 1.fdash-32582342-4ebd-4bfb-8b84-c90fc3981b79-3.m4a (pass -k to keep)

deekerman

2026-02-21 12:18:06 -05:00

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deekerman commented

2026-02-21 12:18:11 -05:00

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@remitamine commented on GitHub (Dec 30, 2020):

as far as i know FFmpeg does not have an option to specify, the rate limit, you may want to use --hls-prefer-native option(you may need to install PyCrypto/PyCryptodome) to use youtube-dl own downloader that does support rate limit option.

@remitamine commented on GitHub (Dec 30, 2020): as far as i know FFmpeg does not have an option to specify, the rate limit, you may want to use `--hls-prefer-native` option(you may need to install PyCrypto/PyCryptodome) to use youtube-dl own downloader that does support rate limit option.

deekerman commented

2026-02-21 12:18:11 -05:00

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Owner

@section83 commented on GitHub (Dec 30, 2020):

Thanks, I couldn't find anything in the FFmpeg docs but hoped I had missed it.

Many thanks for YTDL and Happy New Year.

@section83 commented on GitHub (Dec 30, 2020): Thanks, I couldn't find anything in the FFmpeg docs but hoped I had missed it. Many thanks for YTDL and Happy New Year.

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starred/youtube-dl-ytdl-org#22446

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