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ERROR: Could not write header for output file #0 #7938

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opened 2026-02-21 02:59:05 -05:00 by deekerman · 3 comments

deekerman commented

2026-02-21 02:59:05 -05:00

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Originally created by @rugk on GitHub (Jun 1, 2016).

Please follow the guide below

You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
Put an x into all the boxes [ ] relevant to your issue (like that [x])
Use Preview tab to see how your issue will actually look like

Make sure you are using the latest version: run `youtube-dl --version` and ensure your version is 2016.06.02. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

I've verified and I assure that I'm running youtube-dl 2016.06.02

Before submitting an issue make sure you have:

At least skimmed through README and most notably FAQ and BUGS sections
Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

Bug report (encountered problems with youtube-dl)
Site support request (request for adding support for a new site)
Feature request (request for a new functionality)
Question
Other

The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add -v flag to your command line you run youtube-dl with, copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

$ youtube-dl https://www.youtube.com/watch?v=4BTTiWkdT8Q -v
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'https://www.youtube.com/watch?v=4BTTiWkdT8Q', u'-v']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.06.02
[debug] Python version 2.7.5+ - Linux-3.11-2-amd64-x86_64-with-LinuxMint-1-debian
[debug] exe versions: ffmpeg 2.1.1, ffprobe 2.1.1
[debug] Proxy map: {'no': 'localhost,127.0.0.0/8,::1'}
[youtube] 4BTTiWkdT8Q: Downloading webpage
[youtube] 4BTTiWkdT8Q: Downloading video info webpage
[youtube] 4BTTiWkdT8Q: Extracting video information
[youtube] 4BTTiWkdT8Q: Downloading MPD manifest
[debug] Invoking downloader on u'https://r1---sn-1gi7zn7z.googlevideo.com/videoplayback?id=e014d389691d4fc4&itag=248&source=youtube&requiressl=yes&mv=m&ms=au&pl=24&mm=31&mn=sn-1gi7zn7z&initcwndbps=13902500&nh=IgphcjAxLnpyaDA0KgkxMjcuMC4wLjE&ratebypass=yes&mime=video/webm&gir=yes&clen=461970219&lmt=1436981017080235&dur=2923.720&mt=1464816325&upn=FE0yQ2iG4Oo&sver=3&key=dg_yt0&signature=51F6A75B78A877A974EC67C8B8E4EE8A5712C82F.5561F101214E93EBA07EF6BE566EB2D0F8E5C051&fexp=9407157,9416126,9416778,9416891,9418777,9422596,9428398,9429743,9431012,9431677,9432362,9432772,9433096,9433114,9433380,9433946,9433999,9435361,9435527,9435697,9435876,9436618,9436957,9437066,9437323,9437553,9437711,9437742&ip=185.32.221.150&ipbits=0&expire=1464838234&sparams=ip,ipbits,expire,id,itag,source,requiressl,mv,ms,pl,mm,mn,initcwndbps,nh,ratebypass,mime,gir,clen,lmt,dur'
[download] Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.f248.webm has already been downloaded
[download] 100% of 440.57MiB
[debug] Invoking downloader on u'https://r1---sn-1gi7zn7z.googlevideo.com/videoplayback?id=e014d389691d4fc4&itag=251&source=youtube&requiressl=yes&mv=m&ms=au&pl=24&mm=31&mn=sn-1gi7zn7z&initcwndbps=13902500&nh=IgphcjAxLnpyaDA0KgkxMjcuMC4wLjE&ratebypass=yes&mime=audio/webm&gir=yes&clen=45688386&lmt=1436974398524798&dur=2923.821&mt=1464816325&upn=FE0yQ2iG4Oo&sver=3&key=dg_yt0&signature=1D9647DBFF58C7A7E2E98C14978BA4B9D200D06C.67CE6CCCFD0C7C6C3311CA331D5CD7E0D945B531&fexp=9407157,9416126,9416778,9416891,9418777,9422596,9428398,9429743,9431012,9431677,9432362,9432772,9433096,9433114,9433380,9433946,9433999,9435361,9435527,9435697,9435876,9436618,9436957,9437066,9437323,9437553,9437711,9437742&ip=185.32.221.150&ipbits=0&expire=1464838234&sparams=ip,ipbits,expire,id,itag,source,requiressl,mv,ms,pl,mm,mn,initcwndbps,nh,ratebypass,mime,gir,clen,lmt,dur'
[download] Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.f251.webm has already been downloaded
[download] 100% of 43.57MiB
[ffmpeg] Merging formats into "Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.webm"
[debug] ffmpeg command line: ffmpeg -y -i 'file:Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.f248.webm' -i 'file:Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.f251.webm' -c copy -map 0:v:0 -map 1:a:0 'file:Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.temp.webm'
ERROR: Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1782, in post_process
    files_to_delete, info = pp.run(info)
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 445, in run
    self.run_ffmpeg_multiple_files(info['__files_to_merge'], temp_filename, args)
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 168, in run_ffmpeg_multiple_files
    raise FFmpegPostProcessorError(msg)
FFmpegPostProcessorError
...
<end of log>

Description of your issue, suggested solution and other information

Downloading this video failed with ERROR: Could not write header for output file #0.

System: Linux Mint Debian Edition

Originally created by @rugk on GitHub (Jun 1, 2016). ## Please follow the guide below - You will be asked some questions and requested to provide some information, please read them **carefully** and answer honestly - Put an `x` into all the boxes [ ] relevant to your _issue_ (like that [x]) - Use _Preview_ tab to see how your issue will actually look like --- ### Make sure you are using the _latest_ version: run `youtube-dl --version` and ensure your version is _2016.06.02_. If it's not read [this FAQ entry](https://github.com/rg3/youtube-dl/blob/master/README.md#how-do-i-update-youtube-dl) and update. Issues with outdated version will be rejected. - [x] I've **verified** and **I assure** that I'm running youtube-dl **2016.06.02** ### Before submitting an _issue_ make sure you have: - [x] At least skimmed through [README](https://github.com/rg3/youtube-dl/blob/master/README.md) and **most notably** [FAQ](https://github.com/rg3/youtube-dl#faq) and [BUGS](https://github.com/rg3/youtube-dl#bugs) sections - [x] [Searched](https://github.com/rg3/youtube-dl/search?type=Issues) the bugtracker for similar issues including closed ones ### What is the purpose of your _issue_? - [x] Bug report (encountered problems with youtube-dl) - [ ] Site support request (request for adding support for a new site) - [ ] Feature request (request for a new functionality) - [ ] Question - [ ] Other --- ### The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your _issue_ --- ### If the purpose of this _issue_ is a _bug report_, _site support request_ or you are not completely sure provide the full verbose output as follows: Add `-v` flag to **your command line** you run youtube-dl with, copy the **whole** output and insert it here. It should look similar to one below (replace it with **your** log inserted between triple ```): ``` console $ youtube-dl https://www.youtube.com/watch?v=4BTTiWkdT8Q -v [debug] System config: [] [debug] User config: [] [debug] Command-line args: [u'https://www.youtube.com/watch?v=4BTTiWkdT8Q', u'-v'] [debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8 [debug] youtube-dl version 2016.06.02 [debug] Python version 2.7.5+ - Linux-3.11-2-amd64-x86_64-with-LinuxMint-1-debian [debug] exe versions: ffmpeg 2.1.1, ffprobe 2.1.1 [debug] Proxy map: {'no': 'localhost,127.0.0.0/8,::1'} [youtube] 4BTTiWkdT8Q: Downloading webpage [youtube] 4BTTiWkdT8Q: Downloading video info webpage [youtube] 4BTTiWkdT8Q: Extracting video information [youtube] 4BTTiWkdT8Q: Downloading MPD manifest [debug] Invoking downloader on u'https://r1---sn-1gi7zn7z.googlevideo.com/videoplayback?id=e014d389691d4fc4&itag=248&source=youtube&requiressl=yes&mv=m&ms=au&pl=24&mm=31&mn=sn-1gi7zn7z&initcwndbps=13902500&nh=IgphcjAxLnpyaDA0KgkxMjcuMC4wLjE&ratebypass=yes&mime=video/webm&gir=yes&clen=461970219&lmt=1436981017080235&dur=2923.720&mt=1464816325&upn=FE0yQ2iG4Oo&sver=3&key=dg_yt0&signature=51F6A75B78A877A974EC67C8B8E4EE8A5712C82F.5561F101214E93EBA07EF6BE566EB2D0F8E5C051&fexp=9407157,9416126,9416778,9416891,9418777,9422596,9428398,9429743,9431012,9431677,9432362,9432772,9433096,9433114,9433380,9433946,9433999,9435361,9435527,9435697,9435876,9436618,9436957,9437066,9437323,9437553,9437711,9437742&ip=185.32.221.150&ipbits=0&expire=1464838234&sparams=ip,ipbits,expire,id,itag,source,requiressl,mv,ms,pl,mm,mn,initcwndbps,nh,ratebypass,mime,gir,clen,lmt,dur' [download] Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.f248.webm has already been downloaded [download] 100% of 440.57MiB [debug] Invoking downloader on u'https://r1---sn-1gi7zn7z.googlevideo.com/videoplayback?id=e014d389691d4fc4&itag=251&source=youtube&requiressl=yes&mv=m&ms=au&pl=24&mm=31&mn=sn-1gi7zn7z&initcwndbps=13902500&nh=IgphcjAxLnpyaDA0KgkxMjcuMC4wLjE&ratebypass=yes&mime=audio/webm&gir=yes&clen=45688386&lmt=1436974398524798&dur=2923.821&mt=1464816325&upn=FE0yQ2iG4Oo&sver=3&key=dg_yt0&signature=1D9647DBFF58C7A7E2E98C14978BA4B9D200D06C.67CE6CCCFD0C7C6C3311CA331D5CD7E0D945B531&fexp=9407157,9416126,9416778,9416891,9418777,9422596,9428398,9429743,9431012,9431677,9432362,9432772,9433096,9433114,9433380,9433946,9433999,9435361,9435527,9435697,9435876,9436618,9436957,9437066,9437323,9437553,9437711,9437742&ip=185.32.221.150&ipbits=0&expire=1464838234&sparams=ip,ipbits,expire,id,itag,source,requiressl,mv,ms,pl,mm,mn,initcwndbps,nh,ratebypass,mime,gir,clen,lmt,dur' [download] Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.f251.webm has already been downloaded [download] 100% of 43.57MiB [ffmpeg] Merging formats into "Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.webm" [debug] ffmpeg command line: ffmpeg -y -i 'file:Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.f248.webm' -i 'file:Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.f251.webm' -c copy -map 0:v:0 -map 1:a:0 'file:Zero days - security leaks for sale (VPRO Backlight)-4BTTiWkdT8Q.temp.webm' ERROR: Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Traceback (most recent call last): File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1782, in post_process files_to_delete, info = pp.run(info) File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 445, in run self.run_ffmpeg_multiple_files(info['__files_to_merge'], temp_filename, args) File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 168, in run_ffmpeg_multiple_files raise FFmpegPostProcessorError(msg) FFmpegPostProcessorError ... <end of log> ``` --- ### Description of your _issue_, suggested solution and other information Downloading this video failed with `ERROR: Could not write header for output file #0`. System: Linux Mint Debian Edition

deekerman closed this issue

2026-02-21 02:59:09 -05:00

deekerman commented

2026-02-21 02:59:11 -05:00

Author

Owner

@dstftw commented on GitHub (Jun 1, 2016):

Update ffmpeg.

@dstftw commented on GitHub (Jun 1, 2016): Update ffmpeg.

deekerman commented

2026-02-21 02:59:11 -05:00

Author

Owner

@rugk commented on GitHub (Jun 1, 2016):

old in the repos I think...

But instead of such a bad error message youtube-dl might show an error message such as ffmpeg is too old, please upgrade it.
This would be much better...

@rugk commented on GitHub (Jun 1, 2016): old in the repos I think... But instead of such a bad error message `youtube-dl` might show an error message such as `ffmpeg is too old, please upgrade it`. This would be much better...

deekerman commented

2026-02-21 02:59:11 -05:00

Author

Owner

@yan12125 commented on GitHub (Jun 1, 2016):

@dstftw How about asking users to use the latest ffmpeg if FFmpegPostProcessorError is raised?

@yan12125 commented on GitHub (Jun 1, 2016): @dstftw How about asking users to use the latest ffmpeg if `FFmpegPostProcessorError` is raised?

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ERROR: Could not write header for output file #0 #7938

Please follow the guide below

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2016.06.02. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

Before submitting an issue make sure you have:

What is the purpose of your issue?

The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Description of your issue, suggested solution and other information

Make sure you are using the latest version: run `youtube-dl --version` and ensure your version is 2016.06.02. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.