Differences

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--- software:video [2017/06/24 23:45]
cyril [mp3]
+++ software:video [2024/05/12 22:48] (current)
cyril [ffmpeg]
@@ Line 47: / Line 47: @@
 		| convert im3.png - -append final.png
 </code>
+=== Create animated GIF ===
+<code>convert -delay 50 -loop 0 *.jpg out.gif</code>
 === Formats ===
@@ Line 179: / Line 183: @@
 </code>
-  * encode video from images sequence:<code>
+  * encode video from images sequence (eg for timelapse):<code>
-ffmpeg -r 50 -i 01/all/image_1_%07d.pgm -r 50 -c:v libx264 -b:v 800k video_01.avi
+ffmpeg -r 50 -i 01/all/image_1_%07d.pgm -c:v libx264 -b:v 800k video_01.avi
+ffmpeg -r 10 -pattern_type glob -i "*.JPG" -c:v libsvtav1 -qp 20 video.mp4
 </code>
   * cut clip (ss is start time, t is duration):<code>
-ffmpeg -i in.avi -ss 00:00:23 -t 00:00:19 out.avi
+ffmpeg -i in.avi -ss 00:00:23 -t 00:00:19 -vcodec copy -acodec copy out.avi
 </code>
@@ Line 217: / Line 222: @@
 <code bash>
 lame -V2 --vbr-new -q0 --lowpass 10 -s 22.05 -b32 file.wav file.mp3
+</code>
+=> ''mp3cut''
+To cut an mp3 file (warning: ID3 tags are not copied):
+<code bash>
+mp3cut -o output.mp3 -t 00:00:05+700-00:00:07+800 input.mp3
+</code>
+To concatenate mp3 files:
+<code bash>
+mp3cut -o output.mp3 input1.mp3 input2.mp3 input3.mp3
 </code>