When it comes to DV-Avi, there are only a few apps available on the Linux platform.
Kino DV Video Editor. Kino is a non-linear DV editor for GNU/Linux. It features excellent integration with IEEE-1394 for capture, VTR control, and recording back to the camera. It captures video to disk in Raw DV and AVI format, in both type-1 DV and type-2 DV (separate audio stream) encodings.
You can load multiple video clips, cut and paste portions of video/audio, and save it to an edit decision list (SMIL XML format). Most edit and navigation commands are mapped to equivalent vi key commands. Also, Kino can export the composite movie in a number of formats: DV over IEEE 1394, Raw DV, DV AVI, still frames, WAV, MP3, Ogg Vorbis, MPEG-1, MPEG-2, and MPEG-4. Still frame import and export uses gdk-pixbuf, which has support for BMG, GIF, JPEG, PNG, PPM, SVG, Targa, TIFF, and XPM. MP3 requires lame. Ogg Vorbis requires oggenc. MPEG-1 and MPEG-2 require mjpegtools or ffmpeg. MPEG-4 requires ffmpeg.
Vivia a video editing app for Linux that offers user friendly editing of DV Video material. Vivia offer efficient and editing of clips and transitions, multi-cam edit mode, natural editing of scenes recorded by multiple cameras simultaneously. Often typical in music videos and interviews. Also supports multiple scenes in a single movie project.
It supports following video and still formats. Video: PAL DV (avi or dv). Still images: bmp, gif, jpg, png, pbm, pgm, ppm, svg, xbm, xpm.
If you have a DV Video Camera, and you run Linux, you'll need one of the above.