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recordscreen's Issues

Automatically select VP8 if extension is WebM

If no --vcodec is selected, and file extension is .webm, the video codec should be VP8. That will make life easier.

Video captured with -n plays much faster

Just recorded this on Ubuntu 16.04 and it appears that it plays about 3.6x times faster than real time. Command used:

recordscreen.py -n --fps=60 -s 300x1200 mcspeed.webm

And here is the calculation based on video time from VLC and recorded stopwatch - https://www.desmos.com/calculator/q6qd9b6xq5 - doesn't look like it is a VLC bug.

The script needs documentation

Hi @cessen. People ask for documentation how to use the recordscreen.py. http://askubuntu.com/questions/237027/how-to-record-screen-and-internal-audio/435538?noredirect=1#comment1406910_435538

Would be nice to some PR merged.

Windows support

Hello @cessen, I've added Windows support in 36cd334

This requires that PR #10 is merged first.

Error occured 'Unknown encoder 'libvo_aacenc'',

I am using Python3 in Linux mint 64 ,
but it always throws below error while executing script in terminal and don't know what to do.

Using 'ffmpeg' tool for capture and conversion.
ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, alsa, from 'pulse':
  Duration: N/A, start: 1599137572.512207, bitrate: 1536 kb/s
    Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
[x11grab @ 0x56105b8bb300] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #1, x11grab, from ':0.0+0,0':
  Duration: N/A, start: 1599137572.582845, bitrate: N/A
    Stream #1:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1600x900, 15 fps, 1000k tbr, 1000k tbn, 1000k tbc
Unknown encoder 'libvo_aacenc'
Done!

Only show actual available codecs in codecs list

Right now when the user uses the --codecs flag is just shows all of our pre-selected codecs. However, not all of those codecs are guaranteed to be supported by a given build of ffmpeg or avconv. This will be very confusing to the user if they try to use those codecs.

Let's change it so that the script actually figures out which of the curated codecs are supported, and only shows those.

pygame if available to select captured area

It is possible to use resizeable pygame window to select area to be captured interactively if pygame is installed. Look at pygame tests for an inspiration.

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