sorry gu[ys] for the question, but i till don't know a lot of thing about this world....but....what are they need for?
They are necessary to playback certain codecs which aren't supported out of the box on the Jolla device.
This includes a52dec, x264, aiff, asf, wmv1,wmv2,wmv3, opus,vp8 and all the codecs that can be decoded by ffmpeg (xvid, divx, ...)
Can anyone tell me the best video encoding options ?
I suppose video codec is h.264 and audio AAC. But when encoding videos with same settings as N9 (output resolution is modified to fit the jolla's screen), I always have some delay between audio and video.
I tried to lower the video bitrate, with no success.
So I'm looking for as many information as possible to get smooth videos.
-Originally a XviD/MP3 AVI file, GStreamer can't handle it.
-Running Avidemux.
-Video to MPEG4-AVC (H.264), default options.
-Copy audio (MP3).
-Scale to 960x542 using Mplayer plugin.
-MKV container.
Works perfectly with LLs Video Player. "Top" says 28% CPU usage.
I tested a hd video fully decoded by hardware as it seems (Crest shows 0% usage for the player process) .
It uses the following codecs inside an mp4 container:
Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2002 kb/s, 23.98 fps, 23.98 tbr, 5994 tbn, 47.95 tbc
Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s
From that I guess also x264 encoded video should work fine aswell as faac encoded audio.