I've been attempting to figure this out for forever now (I'm new to programming) and I can't figure it out.
I'm attempting to build a script that will test the file, and give me output from which I can get information like "Audio Format" that I can then put into the filename. However, I can't even get the script to return any file info. I've hit a wall at inserting an input file...
So at this point I just need help getting it to spit out info based on the argvs I've thrown in. Hopefully I'll be able to figure out how to parse the audio info from that.
My attempt that seems to be close:
#!/usr/bin/python
import os, sys, subprocess, shlex, re
from subprocess import call
def probe_file(filename):
p = subprocess.Popen(['/opt/local/bin/ffprobe', '-show_format', '-pretty', '-loglevel quiet', -i filename], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
print filename
print p.communicate()
[probe_file (f) for f in os.listdir('.') if not f.startswith('.')]
ffprobe-python moduleA wrapper around the ffprobe command to extract metadata from media files. Usage:: #!/usr/bin/env python from ffprobe import FFProbe metadata=FFProbe('test-media-file.mov') for stream in metadata.
ffprobe gathers information from multimedia streams and prints it in human- and machine-readable fashion. For example it can be used to check the format of the container used by a multimedia stream and the format and type of each media stream contained in it.
“The ffprobe is a Linux command used to retrieve information from multimedia files. The command then displays the output in a machine or human-readable format. With ffprobe, you can gather information, such as the size, bit rate, height, width, codecs, and pixel format of the multimedia stream.
There are a few problems in your code:
-i filename
which is a syntax error use '-i '+filename
insteadshell=True
is usually not needed and is unnecessary burden.Other than that it seems to be working, are you not seeing output after fixing #1 ?
Edit: Looks like you are having problem with ffprobe commandline, so I installed it and changes you require are:
-i
flag, input file is just passed as last argument.-loglevel
and option of loglevel quiet
as separate arguments i.e. [..., '-loglevel', 'quiet',..]
So after these changes here is a sample script:
#!/usr/bin/python
import os, sys, subprocess, shlex, re
from subprocess import call
def probe_file(filename):
cmnd = ['ffprobe', '-show_format', '-pretty', '-loglevel', 'quiet', filename]
p = subprocess.Popen(cmnd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
print filename
out, err = p.communicate()
print "==========output=========="
print out
if err:
print "========= error ========"
print err
probe_file('drop.avi')
And I see the correct output:
==========output==========
[FORMAT]
filename=drop.avi
nb_streams=1
format_name=avi
format_long_name=AVI format
start_time=0:00:00.000000
duration=0:00:06.066667
size=660.000 Kibyte
bit_rate=891.217 Kbit/s
[/FORMAT]
========= error ========
ffprobe version 0.7.3-4:0.7.3-0ubuntu0.11.10.1, Copyright (c) 2007-2011 the Libav developers
built on Jan 4 2012 16:08:51 with gcc 4.6.1
configuration: --extra-version='4:0.7.3-0ubuntu0.11.10.1' --arch=amd64 --prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
libavutil 51. 7. 0 / 51. 7. 0
libavcodec 53. 6. 0 / 53. 6. 0
libavformat 53. 3. 0 / 53. 3. 0
libavdevice 53. 0. 0 / 53. 0. 0
libavfilter 2. 4. 0 / 2. 4. 0
libswscale 2. 0. 0 / 2. 0. 0
libpostproc 52. 0. 0 / 52. 0. 0
Unsupported codec with id 114 for input stream 0
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With