Cinelerrra Patches

Cinelerra was released by Heroine Virtual in 2002 and has been a popular video editor on Linux for 10 years. In 2003 a community version of Cinelerra was created. The purpose of this version was to provide an open development platform where new features and patches could be easily tested. Recently, updates to the community version have lagged behind the the version maintained by Heroine Virtual.

Patch for yuv4mpeg Streaming Output

Heroine Virtual released Cinelerra version 4.2 in October 2010. While this new version contains many improvements to previous versions. It also lacks important features of the community version. An important feature that version 4.2 lacks is the ability to render to an external encoder using a yuv4mpeg video stream. Without this feature intermediate codecs such as mjpeg must be used in any workflow aimed at producing DVD or blu-ray compatible video streams.

The single-generation video workflows explained in these pages require yuv4mpeg video streams. This section contains a patch adding this important functionality to Cinelerra version 4.2.

Patch for dnxhd Quicktime Input

This section contains a patch to add dnxhd quicktime input to Cinelerra version 4.2. The advantage of dnxhd over mjpeg is native support of 1080i and greater encoding quality due to more flexible quantization and compression methods. To transcode AVCHD camcorder source to a dnxhd quicktime file use the command

    ffmpeg -i 00032.mts -r 30000/1001 -s 1920x1080 -b 145M \
        -acodec pcm_s16be -vcodec dnxhd -y 00032.mov

You may use a bitrate of 220M for even higher quality.

Last Updated: Thu Jun 2 12:58:15 PDT 2011