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ifmihai opened this issue Nov 29, 2014 · 20 comments
Closed

ffmpeg_file vframes arg broken #3862

ifmihai opened this issue Nov 29, 2014 · 20 comments
Labels
OS: Apple topic: animation
Milestone
v1.4.x

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@ifmihai
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ifmihai commented Nov 29, 2014

I got into animation subject.
I get the same exception(s) with two different examples.
I searched the web, I tried to get my head around the exceptions, but now I'm stuck. hence this issue.
I don't know where is the problem.

The examples I ran:

  1. official example: http://matplotlib.org/examples/animation/moviewriter.html
  2. @tacaswell answer on stackoverflow: http://stackoverflow.com/a/13983801/662323

the exception(s):

python moviewriter.py
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/tight_layout.py:225: UserWarning: tight_layout : falling back to Agg renderer
  warnings.warn("tight_layout : falling back to Agg renderer")
Traceback (most recent call last):
  File "moviewriter.py", line 34, in <module>
    ani_frame()
  File "moviewriter.py", line 31, in ani_frame
    ani.save('demo.mp4',writer=writer,dpi=dpi)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
    writer.grab_frame(**savefig_kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 204, in grab_frame
    dpi=self.dpi, **savefig_kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/figure.py", line 1421, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/backend_bases.py", line 2220, in print_figure
    **kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py", line 497, in print_raw
    renderer._renderer.write_rgba(filename_or_obj)
RuntimeError: Error writing to file

my configuration
macosx mavericks 10.9.4
anaconda bundle
matplotlib 1.3.1 (as 1.4.2 still doesn't work in my configuration, the ascii bug #3517 still prevails)

matplotlib.get_backend() gives 'MacOSX'

I've installed ffmpeg and mencoder (through homebrew)
matplotlib.animation.writers.list() recognizes both codecs

Any help on this? is it a bug or a problem with my configuration?
@WeatherGod
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Could you give it a shot with "ffmpeg_file" writer instead of "ffmpeg"?
This is a subtly different saving mechanism, but still uses ffmpeg (saves
the individual frames as temporaries and then encodes them when done
instead of on the fly). Also, try using the command-line flag of
"--debug-annoying". This will activate lots of extra logging.

On Sat, Nov 29, 2014 at 11:43 AM, Michael notifications@github.com wrote:

I got into animation subject.
I get the same exception(s) with two different examples.
I searched the web, I tried to get my head around the exceptions, but now
I'm stuck. hence this issue.
I don't know where is the problem.

The examples I ran:

  1. official example:
    http://matplotlib.org/examples/animation/moviewriter.html
  2. @tacaswell https://github.com/tacaswell answer on stackoverflow:
    http://stackoverflow.com/a/13983801/662323

the exception(s):

python moviewriter.py/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/tight_layout.py:225: UserWarning: tight_layout : falling back to Agg renderer
warnings.warn("tight_layout : falling back to Agg renderer")
Traceback (most recent call last):
File "moviewriter.py", line 34, in
ani_frame()
File "moviewriter.py", line 31, in ani_frame
ani.save('demo.mp4',writer=writer,dpi=dpi)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
writer.grab_frame(*_savefig_kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 204, in grab_frame
dpi=self.dpi, *_savefig_kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/figure.py", line 1421, in savefig
self.canvas.print_figure(_args, *_kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/backend_bases.py", line 2220, in print_figure
**kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py", line 497, in print_raw
renderer._renderer.write_rgba(filename_or_obj)RuntimeError: Error writing to file

my configuration
macosx mavericks 10.9.4
anaconda bundle
matplotlib 1.3.1 (as 1.4.2 still doesn't work in my configuration, the
ascii bug #3517 #3517
still prevails)

matplotlib.get_backend() gives 'MacOSX'

I've installed ffmpeg and mencoder (through homebrew)
matplotlib.animatio 8000 n.writers.list() recognizes both codecs

Any help on this? is it a bug or a problem with my configuration?

—
Reply to this email directly or view it on GitHub
#3862.

@ifmihai
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ifmihai commented Dec 1, 2014

sorry for delay.
I tried ffmpeg_file also.
It runs for longer period of time.
And i see it writes down png files (ie _tmp00045.png)
but still errors:

python moviewriter1.py
Traceback (most recent call last):
  File "moviewriter1.py", line 36, in <module>
    ani_frame()
  File "moviewriter1.py", line 33, in ani_frame
    ani.save('demo1.mp4',writer=writer,dpi=dpi)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
    writer.grab_frame(**savefig_kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/contextlib.py", line 24, in __exit__
    self.gen.next()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 171, in saving
    self.finish()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 334, in finish
    + ' Try running with --verbose-debug')
RuntimeError: Error creating movie, return code: -5 Try running with --verbose-debug

I'm running the examples by copy paste them into a py file, then run it with python.
How do I add --debug-annoying?
Maybe as a parameter to the writer?
I don't know how and I can't seem to find how.

@WeatherGod
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It would be a command-line flag. But actually, I might be wrong and it is
"--verbose-debug" as the error message states. So, if you copied the
example to a file called "foo.py", you would normally type a command of
"python foo.py". Adding a command line flag of "--verbose-debug" simply
means using the following command: "python foo.py --verbose-debug".

On Mon, Dec 1, 2014 at 10:55 AM, Michael notifications@github.com wrote:

sorry for delay.
I tried ffmpeg_file also.
It runs for longer period of time.
And i see it writes down png files (ie _tmp00045.png)
but still errors:

python ffmpegwriter.py
Traceback (most recent call last):
File "ffmpegwriter.py", line 31, in
writer.grab_frame()
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 204, in grab_frame
dpi=self.dpi, **savefig_kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/figure.py", line 1421, in savefig
self.canvas.print_figure(_args, *_kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/backend_bases.py", line 2220, in print_figure
**kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py", line 497, in print_raw
renderer._renderer.write_rgba(filename_or_obj)RuntimeError: Error writing to file79-118-139-138:matplotlib ifmichael$ python moviewriter1.py
Traceback (most recent call last):
File "moviewriter1.py", line 36, in
ani_frame()
File "moviewriter1.py", line 33, in ani_frame
ani.save('demo1.mp4',writer=writer,dpi=dpi)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
writer.grab_frame(**savefig_kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/contextlib.py", line 24, in exit
self.gen.next()
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 171, in saving
self.finish()
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 334, in finish
+ ' Try running with --verbose-debug')RuntimeError: Error creating movie, return code: -5 Try running with --verbose-debug

I'm running the examples by copy paste them into a py file, then run it
with python.
How do I add --debug-annoying?
Maybe as a parameter to the writer?
I don't know how and I can't seem to find how.

—
Reply to this email directly or view it on GitHub
#3862 (comment)
.

@ifmihai
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Author
ifmihai commented Dec 1, 2014

ah.
I thought I need to give this --verbose-debug to matplotlib, not python.
now it makes sense.

this is the result (i changed the example's 300 frames into 10 frames, for a shorter output to paste it here):

python moviewriter1.py --verbose-debug
$HOME=/Users/ifmichael
matplotlib data path /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data
loaded rc file /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 1.3.1
verbose.level debug
interactive is False
platform is darwin
loaded modules: <dictionary-keyiterator object at 0x1021c5158>
CACHEDIR=/Users/ifmichael/.matplotlib
Using fontManager instance from /Users/ifmichael/.matplotlib/fontList.cache
backend MacOSX version unknown
Animation.save using <class 'matplotlib.animation.FFMpegFileWriter'>
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 0 to fname=_tmp0000000.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 1 to fname=_tmp0000001.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 2 to fname=_tmp0000002.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 3 to fname=_tmp0000003.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 4 to fname=_tmp0000004.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 5 to fname=_tmp0000005.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 6 to fname=_tmp0000006.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 7 to fname=_tmp0000007.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 8 to fname=_tmp0000008.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 9 to fname=_tmp0000009.png
MovieWriter.run: running command: ffmpeg -vframes 10 -r 30 -i _tmp%07d.png -vcodec mpeg4 -y demo1.mp4
dyld: Library not loaded: /usr/local/lib/libfreetype.6.dylib
  Referenced from: /usr/local/bin/ffmpeg
  Reason: image not found
MovieWriter -- Command stdout:
None
MovieWriter -- Command stderr:
None
MovieWriter: clearing temporary fnames=['_tmp0000000.png', '_tmp0000001.png', '_tmp0000002.png', '_tmp0000003.png', '_tmp0000004.png', '_tmp0000005.png', '_tmp0000006.png', '_tmp0000007.png', '_tmp0000008.png', '_tmp0000009.png']
Traceback (most recent call last):
  File "moviewriter1.py", line 36, in <module>
    ani_frame()
  File "moviewriter1.py", line 33, in ani_frame
    ani.save('demo1.mp4',writer=writer,dpi=dpi)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
    writer.grab_frame(**savefig_kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/contextlib.py", line 24, in __exit__
    self.gen.next()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 171, in saving
    self.finish()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 334, in finish
    + ' Try running with --verbose-debug')
RuntimeError: Error creating movie, return code: -5 Try running with --verbose-debug

@WeatherGod
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Very interesting... how did you install ffmpeg?

On Mon, Dec 1, 2014 at 11:08 AM, Michael notifications@github.com wrote:

ah.
I thought I need to give this --verbose-debug to matplotlib, not python.
now it makes sense.

this is the result (i changed the example's 300 frames into 10 frames, for
a shorter output to paste it here):

python moviewriter1.py --verbose-debug
$HOME=/Users/ifmichael
matplotlib data path /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data
loaded rc file /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 1.3.1
verbose.level debug
interactive is False
platform is darwin
loaded modules: <dictionary-keyiterator object at 0x1021c5158>
CACHEDIR=/Users/ifmichael/.matplotlib
Using fontManager instance from /Users/ifmichael/.matplotlib/fontList.cache
backend MacOSX version unknown
Animation.save using <class 'matplotlib.animation.FFMpegFileWriter'>
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 0 to fname=_tmp0000000.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 1 to fname=_tmp0000001.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 2 to fname=_tmp0000002.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 3 to fname=_tmp0000003.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 4 to fname=_tmp0000004.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 5 to fname=_tmp0000005.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 6 to fname=_tmp0000006.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 7 to fname=_tmp0000007.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 8 to fname=_tmp0000008.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 9 to fname=_tmp0000009.png
MovieWriter.run: running command: ffmpeg -vframes 10 -r 30 -i _tmp%07d.png -vcodec mpeg4 -y demo1.mp4
dyld: Library not loaded: /usr/local/lib/libfreetype.6.dylib
Referenced from: /usr/local/bin/ffmpeg
Reason: image not found
MovieWriter -- Command stdout:None
MovieWriter -- Command stderr:None
MovieWriter: clearing temporary fnames=['_tmp0000000.png', '_tmp0000001.png', '_tmp0000002.png', '_tmp0000003.png', '_tmp0000004.png', '_tmp0000005.png', '_tmp0000006.png', '_tmp0000007.png', '_tmp0000008.png', '_tmp0000009.png']
Traceback (most recent call last):
File "moviewriter1.py", line 36, in
ani_frame()
File "moviewriter1.py", line 33, in ani_frame
ani.save('demo1.mp4',writer=writer,dpi=dpi)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
writer.grab_frame(**savefig_kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/contextlib.py", line 24, in exit
self.gen.next()
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 171, in saving
self.finish()
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 334, in finish
+ ' Try running with --verbose-debug')RuntimeError: Error creating movie, return code: -5 Try running with --verbose-debug

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#3862 (comment)
.

@ifmihai
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ifmihai commented Dec 1, 2014

I installed it through homebrew

@jenshnielsen
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Can you try to install freetype manually? Homebrew ffmpeg lists it as an optional dependency which doesn't seem to be true.

brew install freetype

@jenshnielsen
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Is is linked? I.e. is does /usr/local/lib/libfreetype.6.dylib exist?

If so I would suggest trying to reinstall ffmpeg.

@ifmihai
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ifmihai commented Dec 1, 2014

I searched for this file and it's in many places
but it's not in /usr/local/lib

mdfind libfreetype.6.dylib
/Users/ifmichael/anaconda/lib/libfreetype.6.dylib
/opt/X11/lib/libfreetype.6.dylib
/Users/ifmichael/anaconda/pkgs/freetype-2.4.10-1/lib/libfreetype.6.dylib
/usr/local/Cellar/freetype/2.5.3_1/lib/libfreetype.6.dylib
/Library/Frameworks/Mono.framework/Versions/3.10.0/lib/libfreetype.6.dylib
/Library/Frameworks/Mono.framework/Versions/3.10.0/lib/libfreetype.6.dylib.dSYM
/Users/ifmichael/anaconda/pkgs/freetype-2.4.10-1/info/files

@jenshnielsen
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That probably means that homebrew freetype is not linked:

Try

brew link freetype

Or if that doesn't work

brew unlink freetype && brew link freetype

@ifmihai
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ifmihai commented Dec 1, 2014

Apparently there are some changes now, but it still ends in exception.
(So you basically suggest it's ffmpeg's fault?)

First, brew linking:

brew link freetype
Warning: Already linked: /usr/local/Cellar/freetype/2.5.3_1
To relink: brew unlink freetype && brew link freetype

brew unlink freetype
Unlinking /usr/local/Cellar/freetype/2.5.3_1... 1 symlinks removed

brew link freetype
Linking /usr/local/Cellar/freetype/2.5.3_1... 8 symlinks created

Now, the ffmpeg_file output:

python moviewriter1.py --verbose-debug
$HOME=/Users/ifmichael
matplotlib data path /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data
loaded rc file /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 1.3.1
verbose.level debug
interactive is False
platform is darwin
loaded modules: <dictionary-keyiterator object at 0x1021c51b0>
CACHEDIR=/Users/ifmichael/.matplotlib
Using fontManager instance from /Users/ifmichael/.matplotlib/fontList.cache
backend MacOSX version unknown
Animation.save using <class 'matplotlib.animation.FFMpegFileWriter'>
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 0 to fname=_tmp0000000.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 1 to fname=_tmp0000001.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 2 to fname=_tmp0000002.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 3 to fname=_tmp0000003.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 4 to fname=_tmp0000004.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 5 to fname=_tmp0000005.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 6 to fname=_tmp0000006.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 7 to fname=_tmp0000007.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 8 to fname=_tmp0000008.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 9 to fname=_tmp0000009.png
MovieWriter.run: running command: ffmpeg -vframes 10 -r 30 -i _tmp%07d.png -vcodec mpeg4 -y demo1.mp4
dyld: Library not loaded: /usr/local/lib/libfontconfig.1.dylib
  Referenced from: /usr/local/lib/libass.5.dylib
  Reason: image not found
MovieWriter -- Command stdout:
None
MovieWriter -- Command stderr:
None
MovieWriter: clearing temporary fnames=['_tmp0000000.png', '_tmp0000001.png', '_tmp0000002.png', '_tmp0000003.png', '_tmp0000004.png', '_tmp0000005.png', '_tmp0000006.png', '_tmp0000007.png', '_tmp0000008.png', '_tmp0000009.png']
Traceback (most recent call last):
  File "moviewriter1.py", line 39, in <module>
    ani_frame()
  File "moviewriter1.py", line 36, in ani_frame
    ani.save('demo1.mp4',writer=writer,dpi=dpi)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
    writer.grab_frame(**savefig_kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/contextlib.py", line 24, in __exit__
    self.gen.next()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 171, in saving
    self.finish()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 334, in finish
    + ' Try running with --verbose-debug')
RuntimeError: Error creating movie, return code: -5 Try running with --verbose-debug

@ifmihai
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ifmihai commented Dec 1, 2014

ok. after reading the output again, I saw a pb with fontconfig. I did

brew unlink fontconfig
brew link fontconfig

Now the output is changed:

python moviewriter1.py --verbose-debug
$HOME=/Users/ifmichael
matplotlib data path /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data
loaded rc file /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 1.3.1
verbose.level debug
interactive is False
platform is darwin
loaded modules: <dictionary-keyiterator object at 0x1021c5158>
CACHEDIR=/Users/ifmichael/.matplotlib
Using fontManager instance from /Users/ifmichael/.matplotlib/fontList.cache
backend MacOSX version unknown
Animation.save using <class 'matplotlib.animation.FFMpegFileWriter'>
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 0 to fname=_tmp0000000.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 1 to fname=_tmp0000001.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 2 to fname=_tmp0000002.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 3 to fname=_tmp0000003.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 4 to fname=_tmp0000004.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 5 to fname=_tmp0000005.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 6 to fname=_tmp0000006.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 7 to fname=_tmp0000007.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 8 to fname=_tmp0000008.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 9 to fname=_tmp0000009.png
MovieWriter.run: running command: ffmpeg -vframes 10 -r 30 -i _tmp%07d.png -vcodec mpeg4 -y demo1.mp4
ffmpeg version 2.4.3 Copyright (c) 2000-2014 the FFmpeg developers
  built on Nov 29 2014 17:33:28 with Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.4.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-libass --enable-ffplay --enable
8000
-libfdk-aac --enable-libopus --enable-libquvi --enable-libx265 --enable-vda
  libavutil      54.  7.100 / 54.  7.100
  libavcodec     56.  1.100 / 56.  1.100
  libavformat    56.  4.101 / 56.  4.101
  libavdevice    56.  0.100 / 56.  0.100
  libavfilter     5.  1.100 /  5.  1.100
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  0.100 /  3.  0.100
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  0.100 / 53.  0.100
Option vframes (set the number of video frames to record) cannot be applied to input file _tmp%07d.png -- you are trying to apply an input option to an output file or vice versa. Move this option before the file it belongs to.
Error parsing options for input file _tmp%07d.png.
Error opening input files: Invalid argument
MovieWriter -- Command stdout:
None
MovieWriter -- Command stderr:
None
MovieWriter: clearing temporary fnames=['_tmp0000000.png', '_tmp0000001.png', '_tmp0000002.png', '_tmp0000003.png', '_tmp0000004.png', '_tmp0000005.png', '_tmp0000006.png', '_tmp0000007.png', '_tmp0000008.png', '_tmp0000009.png']
Traceback (most recent call last):
  File "moviewriter1.py", line 39, in <module>
    ani_frame()
  File "moviewriter1.py", line 36, in ani_frame
    ani.save('demo1.mp4',writer=writer,dpi=dpi)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
    writer.grab_frame(**savefig_kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/contextlib.py", line 24, in __exit__
    self.gen.next()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 171, in saving
    self.finish()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 334, in finish
    + ' Try running with --verbose-debug')
RuntimeError: Error creating movie, return code: 1 Try running with --verbose-debug

One more mention. I checked again how I installed ffmpeg. I did it through the following command (from their site, for macosx):

brew install ffmpeg --with-fdk-aac --with-ffplay --with-freetype --with-libass --with-libquvi --with-libvorbis --with-libvpx --with-opus --with-x265

I will unlink/link all of these

@WeatherGod
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Just for sanity checking, run "which ffmpeg".

On Mon, Dec 1, 2014 at 11:43 AM, Michael notifications@github.com wrote:

Apparently there are some changes now, but it still ends in exception.
(So you basically suggest it's ffmpeg's fault?)

First, brew linking:

brew link freetypeWarning: Already linked: /usr/local/Cellar/freetype/2.5.3_1
To relink: brew unlink freetype && brew link freetype

brew unlink freetype
Unlinking /usr/local/Cellar/freetype/2.5.3_1... 1 symlinks removed

brew link freetype
Linking /usr/local/Cellar/freetype/2.5.3_1... 8 symlinks created

Now, the ffmpeg_file output:

python moviewriter1.py --verbose-debug
$HOME=/Users/ifmichael
matplotlib data path /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data
loaded rc file /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 1.3.1
verbose.level debug
interactive is False
platform is darwin
loaded modules: <dictionary-keyiterator object at 0x1021c51b0>

CACHEDIR=/Users/ifmichael/.matplotlib
Using fontManager instance from /Users/ifmichael/.matplotlib/fontList.cache
backend MacOSX version unknown
Animation.save using <class 'matplotlib.animation.FFMpegFileWriter'>
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 0 to fname=_tmp0000000.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 1 to fname=_tmp0000001.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 2 to fname=_tmp0000002.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 3 to fname=_tmp0000003.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 4 to fname=_tmp0000004.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 5 to fname=_tmp0000005.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 6 to fname=_tmp0000006.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 7 to fname=_tmp0000007.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 8 to fname=_tmp0000008.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 9 to fname=_tmp0000009.png
MovieWriter.run: running command: ffmpeg -vframes 10 -r 30 -i _tmp%07d.png -vcodec mpeg4 -
y demo1.mp4
dyld: Library not loaded: /usr/local/lib/libfontconfig.1.dylib
Referenced from: /usr/local/lib/libass.5.dylib
Reason: image not found
MovieWriter -- Command stdout:None
MovieWriter -- Command stderr:None
MovieWriter: clearing temporary fnames=['_tmp0000000.png', '_tmp0000001.png', '_tmp0000002.png', '_tmp0000003.png', '_tmp0000004.png', '_tmp0000005.png', '_tmp0000006.png', '_tmp0000007.png', '_tmp0000008.png', '_tmp0000009.png']
Traceback (most recent call last):
File "moviewriter1.py", line 39, in
ani_frame()
File "moviewriter1.py", line 36, in ani_frame
ani.save('demo1.mp4',writer=writer,dpi=dpi)
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
writer.grab_frame(**savefig_kwargs)
File "/Users/ifmichael/anaconda/lib/python2.7/contextlib.py", line 24, in exit
self.gen.next()
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 171, in saving
self.finish()
File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 334, in finish
+ ' Try running with --verbose-debug')RuntimeError: Error creating movie, return code: -5 Try running with --verbose-debug

—
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#3862 (comment)
.

@ifmihai
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ifmihai commented Dec 1, 2014 
which ffmpeg
/usr/local/bin/ffmpeg

@ifmihai
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ifmihai commented Dec 1, 2014

apparently, the core of the issue now is:
"
ffmpeg -vframes 10 -r 30 -i _tmp%07d.png -vcodec mpeg4 -y demo1.mp4

Option vframes (set the number of video frames to record) cannot be applied to input file _tmp%07d.png -- you are trying to apply an input option to an output file or vice versa. Move this option before the file it belongs to.
Error parsing options for input file _tmp%07d.png."

I'm not sure what this means, but it may be a syntax error given to ffmpeg?

@WeatherGod
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Are the tmp files still in the directory? If not, then that might be the
problem.

On Mon, Dec 1, 2014 at 12:01 PM, Michael notifications@github.com wrote:

apparently, the core of the issue now is:
"
ffmpeg -vframes 10 -r 30 -i _tmp%07d.png -vcodec mpeg4 -y demo1.mp4

Option vframes (set the number of video frames to record) cannot be
applied to input file _tmp%07d.png -- you are trying to apply an input
option to an output file or vice versa. Move this option before the file it
belongs to.
Error parsing options for input file _tmp%07d.png."

I'm not sure what this means, but it may be a syntax error given to ffmpeg?

—
Reply to this email directly or view it on GitHub
#3862 (comment)
.

@ifmihai
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ifmihai commented Dec 1, 2014

I've watched in parallel the directory in finder.
It creates all files, then deletes them all.

After unlink/link all packages installed along with ffmpeg
I also did a brew update && brew upgrade
Now it works with 'ffmpeg' writer!

but it still doesn't work with 'ffmpeg_file'

the result is:

python moviewriter1.py --verbose-debug
$HOME=/Users/ifmichael
matplotlib data path /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data
loaded rc file /Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 1.3.1
verbose.level debug
interactive is False
platform is darwin
loaded modules: <dictionary-keyiterator object at 0x1021c51b0>
CACHEDIR=/Users/ifmichael/.matplotlib
Using fontManager instance from /Users/ifmichael/.matplotlib/fontList.cache
backend MacOSX version unknown
Animation.save using <class 'matplotlib.animation.FFMpegFileWriter'>
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 0 to fname=_tmp0000000.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 1 to fname=_tmp0000001.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 2 to fname=_tmp0000002.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 3 to fname=_tmp0000003.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 4 to fname=_tmp0000004.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 5 to fname=_tmp0000005.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 6 to fname=_tmp0000006.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 7 to fname=_tmp0000007.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 8 to fname=_tmp0000008.png
MovieWriter.grab_frame: Grabbing frame.
FileMovieWriter.frame_sink: saving frame 9 to fname=_tmp0000009.png
MovieWriter.run: running command: ffmpeg -vframes 10 -r 30 -i _tmp%07d.png -vcodec mpeg4 -y demo1.mp4
ffmpeg version 2.4.3 Copyright (c) 2000-2014 the FFmpeg developers
  built on Nov 29 2014 17:33:28 with Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.4.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus --enable-libquvi --enable-libx265 --enable-vda
  libavutil      54.  7.100 / 54.  7.100
  libavcodec     56.  1.100 / 56.  1.100
  libavformat    56.  4.101 / 56.  4.101
  libavdevice    56.  0.100 / 56.  0.100
  libavfilter     5.  1.100 /  5.  1.100
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  0.100 /  3.  0.100
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  0.100 / 53.  0.100
Option vframes (set the number of video frames to record) cannot be applied to input file _tmp%07d.png -- you are trying to apply an input option to an output file or vice versa. Move this option before the file it belongs to.
Error parsing options for input file _tmp%07d.png.
Error opening input files: Invalid argument
MovieWriter -- Command stdout:
None
MovieWriter -- Command stderr:
None
MovieWriter: clearing temporary fnames=['_tmp0000000.png', '_tmp0000001.png', '_tmp0000002.png', '_tmp0000003.png', '_tmp0000004.png', '_tmp0000005.png', '_tmp0000006.png', '_tmp0000007.png', '_tmp0000008.png', '_tmp0000009.png']
Traceback (most recent call last):
  File "moviewriter1.py", line 39, in <module>
    ani_frame()
  File "moviewriter1.py", line 36, in ani_frame
    ani.save('demo1.mp4',writer=writer,dpi=dpi)
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 718, in save
    writer.grab_frame(**savefig_kwargs)
  File "/Users/ifmichael/anaconda/lib/python2.7/contextlib.py", line 24, in __exit__
    self.gen.next()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 171, in saving
    self.finish()
  File "/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/animation.py", line 334, in finish
    + ' Try running with --verbose-debug')
RuntimeError: Error creating movie, return code: 1 Try running with --verbose-debug

@tacaswell tacaswell changed the title animation issue ffmpeg_file vframes arg broken Dec 4, 2014
@tacaswell tacaswell added this to the v1.4.x milestone Dec 4, 2014
@tacaswell
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Change title to point at the real issue found here which is the incantation for ffmpeg file seems to have rotted. My understanding is that ffmpeg has a history of breaking api without much warning. It is also made far worse by the ffmpeg/libav split.

@dopplershift
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I went to go fix this latter problem with ffmpeg options, and it turns out this is a duplicate of #2482.

I tested, was able to reproduce the error using the ffmpeg I have installed on my Mac and the problematic command from the log above. Using a current matplotlib version, everything works fine here.

@tacaswell
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blah, I totally missed that this was a 1.3.1 bug, closing as fixed.

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