Difference between revisions of "Convert a replay to a video"

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* transcode is required to run this command, but you can use any video tool to build the video
 
* transcode is required to run this command, but you can use any video tool to build the video
 
* -w can be used to change the bitrate, and then, make a smaller video.
 
* -w can be used to change the bitrate, and then, make a smaller video.
 +
 +
=== Using Mplayer/mencoder ===
 +
to make my youtube [http://www.youtube.com/watch?v=iAugO6DPxTc#GU5U2spHI_4 video] I did the following:
 +
* Dump a replay to jpegs:
 +
 +
xmoto -r ~/.xmoto/Replays/replayname.rpl --videoRecording DirNameForPics --videoRecordingSizeDivision 1
 +
 +
* Turn it into an avi file:
 +
 +
mencoder "mf://DirNameForPics/*.jpg" -fps 20 -of avi -o output.avi -ovc lavc
 +
 +
* Glue several .avi files together:
 +
 +
mencoder -oac copy -ovc copy -o output.avi input1.avi input2.avi
 +
 +
* Add sound:
 +
 +
mencoder -oac copy -ovc copy  -o output.avi  -audiofile /Path/to/the/file/file.mp3 input.avi

Latest revision as of 11:21, 26 November 2010

Extract pictures

Since X-Moto 0.4.0, you can extract screenshots while playing/replaying.

At command line (or in a .bat) you can use the following options:

  • --videoRecording : enable video recording
  • --videoRecordingSizeDivision DIVISION : Change video size (1=full, 2=50%, 4=25%)
  • --videoRecordingSizeFramerate FRAMERATE : change framerate

Example:

xmoto --videoRecording myvideo1
or
xmoto -r replay_555.rpl --videoRecording myvideo1 --benchmark

Note that in this example, -r is used so that the game directly starts the replay and --benchmark make X-Moto close automatically once the replay is ended. You don't need these options, you can choose to start xmoto normally, then go into the replay tab, and choose a replay. X-Moto will start to record the video only when the replay will be started. You can even close the X-Moto window when you want (the end of the replay will not be recorded).

This creates a directory called ~/.xmoto/Video/myvideo1 where you can find all the pictures taken according to the framerate and size. The is a pictures.lst file which lists all the files.

Convert frames to a video

To convert the frames, just read xmoto.log : you can find in it the command you've to run to convert the frames to the video.

Example:

transcode -i ~/.xmoto/Video/myvideo1 -x imlist,null -y xvid,null -f 20 -g 800x600 \
--use_rgb -z -o ~/.xmoto/Video/myvideo1.avi -H 0 # -w 500
  • transcode is required to run this command, but you can use any video tool to build the video
  • -w can be used to change the bitrate, and then, make a smaller video.

Using Mplayer/mencoder

to make my youtube video I did the following:

  • Dump a replay to jpegs:

xmoto -r ~/.xmoto/Replays/replayname.rpl --videoRecording DirNameForPics --videoRecordingSizeDivision 1

  • Turn it into an avi file:

mencoder "mf://DirNameForPics/*.jpg" -fps 20 -of avi -o output.avi -ovc lavc

  • Glue several .avi files together:

mencoder -oac copy -ovc copy -o output.avi input1.avi input2.avi

  • Add sound:

mencoder -oac copy -ovc copy -o output.avi -audiofile /Path/to/the/file/file.mp3 input.avi