[soundcloud] Error when adding metadata to mp3

[diffycat]

$ youtube-dl https://soundcloud.com/simgretina/just-your-problem-baby-1 --verbose --add-metadata 
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['https://soundcloud.com/simgretina/just-your-problem-baby-1', '--verbose', '--add-metadata']
[debug] youtube-dl version 2013.11.13
[debug] Python version 3.3.2 - Linux-3.12.0-1-ARCH-x86_64-with-arch
[debug] Proxy map: {}
[soundcloud] simgretina/just-your-problem-baby-1: Resolving id
[soundcloud] simgretina/just-your-problem-baby-1: Downloading info JSON
[soundcloud] simgretina/just-your-problem-baby-1: Extracting information
[download] Destination: Just Your Problem Baby (Acapella)-105614606.mp3
[download] 100% of 40.05MiB in 04:11
[ffmpeg] Adding metadata to 'Just Your Problem Baby (Acapella)-105614606.mp3'
[debug] ffmpeg command line: ffmpeg -y -i 'Just Your Problem Baby (Acapella)-105614606.mp3' -c copy -metadata 'title=Just Your Problem Baby (Acapella)' -metadata date=20130815 -metadata 'artist=Sim Gretina' -f mp3 'Just Your Problem Baby (Acapella)-105614606.mp3.temp'
ERROR: Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Traceback (most recent call last):
  File "/usr/lib/python3.3/site-packages/youtube_dl/YoutubeDL.py", line 731, in post_process
    keep_video_wish, new_info = pp.run(info)
  File "/usr/lib/python3.3/site-packages/youtube_dl/PostProcessor.py", line 508, in run
    self.run_ffmpeg(filename, temp_filename, options)
  File "/usr/lib/python3.3/site-packages/youtube_dl/PostProcessor.py", line 102, in run_ffmpeg
    self.run_ffmpeg_multiple_files([path], out_path, opts)
  File "/usr/lib/python3.3/site-packages/youtube_dl/PostProcessor.py", line 99, in run_ffmpeg_multiple_files
    raise FFmpegPostProcessorError(msg)
youtube_dl.PostProcessor.FFmpegPostProcessorError: Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument

Without "--add-metadata" it works fine.

$ youtube-dl --version 
2013.11.13

Python 3.3.2

[jaimeMF]

Fixed, the file is actually a wav file (we considered they were always mp3). You may want to convert it to other format.
Thanks for the report!