Re: crashing in calls to AudioConverter on 10.3.9
Re: crashing in calls to AudioConverter on 10.3.9
- Subject: Re: crashing in calls to AudioConverter on 10.3.9
- From: William Stewart <email@hidden>
- Date: Tue, 28 Mar 2006 14:39:50 -0800
OK...
So, the SRC crash that you posted below has been tracked down to we
think a problem with the input that you are providing. It would
appear that the number of channels of audio data you are providing in
the ABL from your input callback is different than we're expecting -
so in the cases below, the input callback should be providing buffers
configured as:
On 27/03/2006, at 8:27 PM, Christopher Ashworth wrote:
On Mar 27, 2006, at 10:12 PM, William Stewart wrote:
What are the other threads doing in the crash log? If this is a
threading problem, then just looking at the thread that is crashed
is not going to help you. What is the topology of the converters -
do a CAShow on this converter (just so we can see what conversion
operation it is doing).
Okay, here's some sample output from CAShow, on several different
converters that were in use during a crash:
AudioConverter: @530ADA0
AudioConverter PCMConverter 0x530AEC0
Input: 2 ch, 44100 Hz, 'lpcm' (0x0000000C) 16-bit little-
endian signed integer
Output: 2 ch, 44100 Hz, 'lpcm' (0x0000000B) 32-bit big-
endian float
AudioConverter Reinterleaver 0x530AFA0
Input: 2 ch, 44100 Hz, 'lpcm' (0x0000000B) 32-bit big-
endian float
Output: 2 ch, 44100 Hz, 'lpcm' (0x0000002B) 32-bit big-
endian float, deinterleaved
Channel map: 0 1
1 Input buffer of 2 channels of interleaved, 16bit little endian
signed int.
AudioConverter: @3CCAC0
AudioConverter CodecConverter 0x3CCC80
Input: 2 ch, 44100 Hz, '.mp3' (0x00000000) 0 bits/channel,
0 bytes/packet, 1152 frames/packet, 0 bytes/frame
Output: 2 ch, 44100 Hz, 'lpcm' (0x0000000B) 32-bit big-
endian float
AudioConverter Reinterleaver 0x5343040
Input: 2 ch, 44100 Hz, 'lpcm' (0x0000000B) 32-bit big-
endian float
Output: 2 ch, 44100 Hz, 'lpcm' (0x0000002B) 32-bit big-
endian float, deinterleaved
Channel map: 0 1
I input buffer of MP3 packets
AudioConverter: @5340030
AudioConverter PCMConverter 0x5340110
Input: 1 ch, 11025 Hz, 'lpcm' (0x00000008) 8-bit unsigned
integer
Output: 1 ch, 11025 Hz, 'lpcm' (0x0000000B) 32-bit big-
endian float
AudioConverter SampleRateConverter 0x53401D0
Input: 1 ch, 11025 Hz, 'lpcm' (0x0000000B) 32-bit big-
endian float
Output: 1 ch, 44100 Hz, 'lpcm' (0x0000000B) 32-bit big-
endian float
That last converter was in use when the following crash log was
generated:
1 buffer of 1 channel of 8 bit unsigned integer
So, please check that your input ABL is of the same format as the
source format you use to create the converter with.
Thanks
Bill
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