What encoding settings for BlackBerry HTML5 streaming?

Question

For several days I've been desperately trying to get my videos stream on BlackBerry as well as the major desktop and mobile browser. The videos are embedded in this way:

<video preload="auto" controls="controls">
<source src="url.mp4" type=video/mp4 />
<source src="url.ogv" type=video/ogv />
//flash fallback
</video>

When opening the page in the BB browser the black video frame with the controls appears but when I try to play the video the frame stays black and displays an error message: "Video portion is of an unsupported format". Sound does play however.

By now I have tried H.264 and mpeg4 with AAC audio and both of them don't play properly on my BB (OS version 6.0). I've been using ffmpeg to encode the files.

Answer 1

A video that finally worked has the following parameters (output from ffprobe)

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file.mp4':
Metadata:
  major_brand     : isom
  minor_version   : 512
  compatible_brands: isomiso2mp41
  encoder         : Lavf54.6.100
Duration: 00:02:03.74, start: 0.000000, bitrate: 917 kb/s
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p , 480x360 [SAR 1:1 DAR 4:3], 786 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 24k tbc
Metadata:
  handler_name    : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 22050 Hz, stereo, s16, 128 kb/s
Metadata:
  handler_name    : SoundHandler
0.00 A-V:-134874618Frame changed from size:0x0 to size:480x360
2.74 A-V:  0.070 fd=   9 aq=    7KB vq=   38KB sq=    0B f=0/0   f=0/0

To encode such a file use these parameters for ffmpeg:

ffmpeg.exe -i "input_file.mov" -strict -2 -vcodec mpeg4 -vb 786k -acodec aac -ab 128k "output_file.mp4"