FFmpeg: Difference between revisions
No edit summary |
No edit summary |
||
| Line 17: | Line 17: | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
ffmpeg -i input.mp4 -c:v libx264 -profile:v high -pix_fmt yuv420p output.mp4 | ffmpeg -i input.mp4 -c:v libx264 -profile:v high -pix_fmt yuv420p output.mp4 | ||
<syntaxhighlight> | </syntaxhighlight> | ||
==C API== | ==C API== | ||
A doxygen reference manual for their C api is available at [https://ffmpeg.org/doxygen/trunk/index.html]. | A doxygen reference manual for their C api is available at [https://ffmpeg.org/doxygen/trunk/index.html]. | ||
Revision as of 15:55, 18 September 2019
FFmpeg is a library for encoding and decoding multimedia. You can interact with FFmpeg using their command-line interface or using their C API. I find it useful for converting videos to gifs. You can also extract videos into a sequence of images or vice-versa.
CLI
Basic usage is as follows:
ffmpeg -i input_file [-s resolution] [-b bitrate] [-ss start_second] [-t time] output.mp4
x264
x264 is a software h264 decoder and encoder.
[1]
Changing Pixel Format
Encode to h264 with YUV420p pixel format
ffmpeg -i input.mp4 -c:v libx264 -profile:v high -pix_fmt yuv420p output.mp4
C API
A doxygen reference manual for their C api is available at [2].