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introduced some safety checks for the buffer pointers

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This commit is contained in:
Volker Fischer 2015-02-15 16:53:17 +00:00
parent 4de2d7ac44
commit 070fb4a6a4
1 changed files with 23 additions and 14 deletions
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9
linux/sound.cpp
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@ -212,6 +212,8 @@ int CSound::process ( jack_nframes_t nframes, void* arg )
pSound->input_port_right, nframes ); pSound->input_port_right, nframes );
// copy input data // copy input data
if ( in_left != 0 && in_right != 0 )
{
for ( i = 0; i < pSound->iJACKBufferSizeMono; i++ ) for ( i = 0; i < pSound->iJACKBufferSizeMono; i++ )
{ {
pSound->vecsTmpAudioSndCrdStereo[2 * i] = pSound->vecsTmpAudioSndCrdStereo[2 * i] =
@ -220,6 +222,7 @@ int CSound::process ( jack_nframes_t nframes, void* arg )
pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] = pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] =
(short) ( in_right[i] * _MAXSHORT ); (short) ( in_right[i] * _MAXSHORT );
} }
}
// call processing callback function // call processing callback function
pSound->ProcessCallback ( pSound->vecsTmpAudioSndCrdStereo ); pSound->ProcessCallback ( pSound->vecsTmpAudioSndCrdStereo );
@ -234,6 +237,8 @@ int CSound::process ( jack_nframes_t nframes, void* arg )
pSound->output_port_right, nframes ); pSound->output_port_right, nframes );
// copy output data // copy output data
if ( out_left != 0 && out_right != 0 )
{
for ( i = 0; i < pSound->iJACKBufferSizeMono; i++ ) for ( i = 0; i < pSound->iJACKBufferSizeMono; i++ )
{ {
out_left[i] = (jack_default_audio_sample_t) out_left[i] = (jack_default_audio_sample_t)
@ -243,6 +248,7 @@ int CSound::process ( jack_nframes_t nframes, void* arg )
pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] / _MAXSHORT; pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] / _MAXSHORT;
} }
} }
}
else else
{ {
// get output data pointer // get output data pointer
@ -255,12 +261,15 @@ int CSound::process ( jack_nframes_t nframes, void* arg )
pSound->output_port_right, nframes ); pSound->output_port_right, nframes );
// clear output data // clear output data
if ( out_left != 0 && out_right != 0 )
{
memset ( out_left, memset ( out_left,
0, sizeof ( jack_default_audio_sample_t ) * nframes ); 0, sizeof ( jack_default_audio_sample_t ) * nframes );
memset ( out_right, memset ( out_right,
0, sizeof ( jack_default_audio_sample_t ) * nframes ); 0, sizeof ( jack_default_audio_sample_t ) * nframes );
} }
}
return 0; // zero on success, non-zero on error return 0; // zero on success, non-zero on error
} }