StreamingGuide – FFmpeg
FFmpeg can basically stream through one of two ways: It either streams to a some "other server", which re-streams for it to multiple clients, or it can stream via UDP/TCP directly to some single destination receiver, or alternatively directly to a multicast destination. Theoretically you might be able to send to multiple receivers via multiple outputs but there is no built-in full blown server. Se
Create a thumbnail image every X seconds of the video – FFmpeg
-frames option Output a single frame from the video into an image file: ffmpeg -i input.flv -ss 00:00:14.435 -frames:v 1 out.png This example will seek to the position of 0h:0m:14sec:435msec and output one frame (-frames:v 1) from that position into a PNG file. fps video filter Output one image every second, named out1.png, out2.png, out3.png, etc. ffmpeg -i input.flv -vf fps=1 out%d.png Output on
Scaling – FFmpeg
͏ FFmpeg has very powerful scale filter which can accomplish various tasks. Below lists some examples. ͏ More info in the official doc: ͏ https://ffmpeg.org/ffmpeg-filters.html#scale ͏ https://ffmpeg.org/ffmpeg-scaler.html [ "swscale" related: ͏ https://github.com/FFmpeg/FFmpeg/blob/master/libswscale/options.c ͏ https://github.com/search?type=code&q=repo:FFmpeg/FFmpeg+%22Lanczo
Capture/Webcam – FFmpeg
Windows dshow Uses the dshow (DirectShow) input device which is the preferred option for Windows users. See the wiki article about DirectShow and the dshow input device documentation for more information. vfwcap Warning: vfwcap is outdated. Use dshow instead if possible. See DirectShow for more information. Uses the outdated vfwcap input device. See the vfwcap input device documentation for more i
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
#6249 (v4l2 output encoder does not support h264 (only raw)) – FFmpeg
#6636 (Support H264/5 Streams with v4l2 outdev) – FFmpeg
CompilationGuide/Generic – FFmpeg