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--- fuss:ffmpeg [2020/12/21 20:48] – [Converting Gif to H.256 Video] office
+++ fuss:ffmpeg [2022/03/22 23:39] – [Capture WebCam to Framebuffer] office
@@ Line 336: / Line 336: @@
   output.mp4
 </code>
+====== Capture WebCam to Framebuffer ======
+The following command will capture video from ''/dev/video0'', at ''320x240'' resolution and send it to the Linux framebuffer:
+<code bash>
+ffmpeg -f v4l2 -video_size 320x240 -i /dev/video0 -pix_fmt bgra -f fbdev /dev/fb0
+</code>
+The command can be used, for example, to display a webcam to screen directly without needing to install the X window system.
+====== Adding Subtitles to Videos ======
+  * as optional subtitles:
+<code bash>
+ffmpeg -i "movie.mp4" -i "movie.srt" -c copy -c:s mov_text output.mp4
+</code>
+where:
+    * ''movie.mp4'' is the movie,
+    * ''movie.srt'' are the subtitles in SRT format,
+    * ''output.mp4'' is the output movie
+  * as burnt into the video (requires ''ffmpeg'' compiled with ''--enable-libass''):
+<code bash>
+ffmpeg -i movie.mp4 -vf subtitles=movie.srt output.mp4
+</code>
+or with ''libass'':
+<code bash>
+ffmpeg -i movie.srt movie.ass
+ffmpeg -i movie.mp4 -vf ass=movie.ass output.mp4
+</code>
+where:
+    * ''movie.mp4'' is the movie,
+    * ''movie.srt'' are the subtitles in SRT format,
+    * ''output.mp4'' is the output movie