this is cooooool Continue. :)
On 13 févr. 05, at 18:16, Martin Kuball wrote:
Hi
I would like to annonce my project to build a Library for processing audio and video material with squeak. I put a 1st version on the SqueakSource at kilana.unibe.ch. It's not much yet. But you can load and analyze avi container with mpeg 4 video and mp2 and mp3 audio content.
I did this because I needed a tool to repair some broken avi files. Other tools I tried just failed badly.
Try this:
RIFFArchive openOn: 'test.avi' "use explore it to get a nice tree view of the chunks in the avi"
"open a transcript and execute the following to get some information about the contents" (RIFFArchive openOn: 'test.avi') analyzeVideoStream
"To extract the streams inside the avi container do:" (RIFFArchive openOn: 'some.avi') extractAllStreamsToFile: 'base_fileName'.
"If you have raw streams you can create an avi this way:" | avi | avi := AVIFile with: (M4VStream on: 'video.m4v') with: (MPAStream on: 'audio.mp3'). avi runtime: 100. avi frameRate: 24000 / 1001. avi createIndex. "not working yet" avi writeTo: (StandardFileStream newFileNamed: 'test.avi')
Here is my tentative todo list.
- write more documentation and tests
- cleanup and speedup
- add more container formats like mp4, matroska
- add mpeg2 handling (-> dvd authoring???)
- connect with the other multimedia bits in squeak (sound, video
playing, ...)
The project is of course open for everyone to join.
Enjoy, Martin