afconvert creating files that will not play
afconvert creating files that will not play
- Subject: afconvert creating files that will not play
- From: "David Brennan" <email@hidden>
- Date: Thu, 24 Jan 2008 19:20:19 +0000
Hi,
I am using the sample app afconvert to convert aiff to AAC. It seems
to work for large files, but when I try it on small files, the result
will not play.
Here is how I call afconvert
afconvert -f adts -v /Users/david/Desktop/small.aiff
/Users/david/Desktop/small.aac
This is it's output
Input file: small.aiff, 18297 frames
Formats:
Input file 1 ch, 22050 Hz, 'lpcm' (0x0000000E) 16-bit
big-endian signed integer
Output file 1 ch, 22050 Hz, 'aac ' (0x00000000) 0 bits/channel,
0 bytes/packet, 1024 frames/packet, 0 bytes/frame
Mono
Output client 1 ch, 22050 Hz, 'lpcm' (0x0000000E) 16-bit
big-endian signed integer
AudioConverter 0x810a34 [0x124420]:
PCMConverter 0x128640
Input: 1 ch, 22050 Hz, 'lpcm' (0x0000000E) 16-bit big-endian
signed integer
Output: 1 ch, 22050 Hz, 'lpcm' (0x0000000C) 16-bit
little-endian signed integer
CodecConverter 0x1286c0
Input: 1 ch, 22050 Hz, 'lpcm' (0x0000000C) 16-bit
little-endian signed integer
Output: 1 ch, 22050 Hz, 'aac ' (0x00000000) 0 bits/channel, 0
bytes/packet, 1024 frames/packet, 0 bytes/frame
Input layout tag: 640001
Output layout tag: 640001
Output file: small.aac, 20480 frames
And when I try to play the file with QuickTime Player I get an error
message saying:
The movie could not be opened.
The file is not a movie file.
What am I doing wrong?
Kind regards,
Dave.
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