3gp to 3gp conversion - final file is longer - bug?

[princatko]

Hi, I am evaluating FFmpegX (0.0.9u r2) for encoding files to 3gp (h263, amr sound).

I discovered that after compresion the file is 2times longer and
- has not audio
- has "white" second half

I tested default setting (.3gp) and also custom settings (with and withoud - High quality and 2-pass encoding)

Any Idea what is happening? Any help?

Thank you very much.

Here is the log:
Thu Jan 19 07:52:01 CET 2006
Mac OSX static build for ffmpegX
Input #0, mov,mp4,m4a,3gp,3g2, from '/Users/jiri/Documents/Prace/video/3gp/BABD10351UK-Bin_Liner_20s01-origZaloha.3gp':
Duration: 00:00:21.1, start: 0.000000, bitrate: 131 kb/s
Stream #0.0, 12.00 fps: Video: mpeg4, yuv420p, 176x144
Stream #0.1: Audio: aac, 16000 Hz, stereo
Output #0, 3gp, to '/Users/jiri/Documents/Prace/video/3gp/BABD10351UK-Bin_Liner_20s01-origZaloha.3gp.ff.3gp':
Stream #0.0, nan fps: Video: h263, yuv420p, 176x144, q=2-24, pass 1, 74 kb/s
Stream #0.1: Audio: amr_nb, 8000 Hz, mono, 8 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
[h263 @ 0x444b70]removing common factors from framerate
[h263 @ 0x444b70]warning, clipping 1 dct coefficients to -127..127
[h263 @ 0x444b70]warning, clipping 1 dct coefficients to -127..127
[h263 @ 0x444b70]warning, clipping 1 dct coefficients to -127..127
bench: utime=3.183s
video:265kB audio:43kB global headers:0kB muxing overhead 3.428139%
Mac OSX static build for ffmpegX
Input #0, mov,mp4,m4a,3gp,3g2, from '/Users/jiri/Documents/Prace/video/3gp/BABD10351UK-Bin_Liner_20s01-origZaloha.3gp':
Duration: 00:00:21.1, start: 0.000000, bitrate: 131 kb/s
Stream #0.0, 12.00 fps: Video: mpeg4, yuv420p, 176x144
Stream #0.1: Audio: aac, 16000 Hz, stereo
Output #0, 3gp, to '/Users/jiri/Documents/Prace/video/3gp/BABD10351UK-Bin_Liner_20s01-origZaloha.3gp.ff.3gp':
Stream #0.0, nan fps: Video: h263, yuv420p, 176x144, q=2-24, pass 2, 74 kb/s
Stream #0.1: Audio: amr_nb, 8000 Hz, mono, 8 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
[h263 @ 0x444b70]removing common factors from framerate
video:198kB audio:43kB global headers:0kB muxing overhead 4.379378%
bench: utime=3.208s
Encoding completed on Thu Jan 19 07:52:13 CET 2006

[major]

It is possibly linked to the audio resampling from 16000Hz to 8000Hz. Can you email me a clip (with yousendit.com) to major4@mac.com for testing?