FFmpeg: Difference between revisions
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I find it useful for converting videos to gifs. You can also [https://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide/image_sequence extract videos into a sequence of images or vice-versa]. | I find it useful for converting videos to gifs. You can also [https://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide/image_sequence extract videos into a sequence of images or vice-versa]. | ||
==CLI | ==CLI== | ||
Basic usage is as follows: | Basic usage is as follows: | ||
<pre> | <pre> | ||
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</pre> | </pre> | ||
===x264=== | |||
x264 is a software h264 decoder and encoder.<br> | |||
[https://trac.ffmpeg.org/wiki/Encode/H.264] | |||
===Changing Pixel Format=== | |||
Encode to h264 with YUV420p pixel format | |||
<syntaxhighlight lang="bash"> | |||
ffmpeg -i input.mp4 -c:v libx264 -profile:v high -pix_fmt yuv420p output.mp4 | |||
<syntaxhighlight> | |||
==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 <syntaxhighlight lang="bash"> ffmpeg -i input.mp4 -c:v libx264 -profile:v high -pix_fmt yuv420p output.mp4 <syntaxhighlight>
C API
A doxygen reference manual for their C api is available at [2].