Differences between version 17 and predecessor to the previous major change of FFmpeg.
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| Newer page: | version 17 | Last edited on Monday, June 15, 2009 8:28:17 pm | by LawrenceDoliveiro | Revert |
| Older page: | version 15 | Last edited on Monday, June 15, 2009 8:19:31 pm | by LawrenceDoliveiro | Revert |
@@ -65,9 +65,9 @@
This takes a single still frame (probably best to stick to [JPEG] format, certainly [PNG] didn't work) and turns it into an [MPEG]-2 output movie with a silent soundtrack. The movie is of one-second duration, which is sufficient because it can be set to loop during the DVD authoring process:
<pre>
ffmpeg -loop_input -t 1.0 -i ''stillframename'' \
- -ar 48000 -f s16le -i <(dd if=/dev/zero bs=192000
count=1) \
+ -ar 48000 -f s16le -i <(dd if=/dev/zero bs=96000
count=1) \
-target pal-dvd ''outputmoviename''
</pre>
where <tt>pal-dvd</tt> can be replaced with <tt>ntsc-dvd</tt> if authoring an NTSC disc rather than PAL.
@@ -76,9 +76,9 @@
This technique takes apart the video frames from the input movies and reassembles them into the output movie without decompressing and recompressing them. It uses the <tt>image2pipe</tt> container format to stream the frames. Unfortunately there doesn’t seem to be an equivalent pipe container format for audio, so that ends up being reencoded into the specified output format (which can of course be changed as required).
<pre>
- audioparms="-f s16le -ar 48000 -ac 2"
+ audioparms="-f s16le -ar 48000 -ac 2" # choose appropriate intermediate audio format
ffmpeg \
-i <(
ffmpeg -v 0 -i ''inputfile1'' -f image2pipe -vcodec copy -y /dev/stdout;
ffmpeg -v 0 -i ''inputfile2'' -f image2pipe -vcodec copy -y /dev/stdout
