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Merge pull request #916 from mprobinson/jack-fix

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Fix buffer overflow in JACK audio driver
This commit is contained in:
Twinaphex 2014-08-31 17:13:09 +02:00
commit bd3adc5aaa
1 changed files with 9 additions and 5 deletions
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14
audio/jack.c
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@ -214,14 +214,18 @@ static size_t write_buffer(jack_t *jd, const float *buf, size_t size)
{ {
int i; int i;
size_t j; size_t j;
jack_default_audio_sample_t out_deinterleaved_buffer[2][AUDIO_CHUNK_SIZE_NONBLOCKING]; jack_default_audio_sample_t out_deinterleaved_buffer[2][AUDIO_CHUNK_SIZE_NONBLOCKING * AUDIO_MAX_RATIO];
for (i = 0; i < 2; i++)
for (j = 0; j < FRAMES(size); j++)
out_deinterleaved_buffer[i][j] = buf[j * 2 + i];
size_t frames = FRAMES(size); size_t frames = FRAMES(size);
// Avoid buffer overflow if a DSP plugin generated a huge number of frames
if (frames > AUDIO_CHUNK_SIZE_NONBLOCKING * AUDIO_MAX_RATIO)
frames = AUDIO_CHUNK_SIZE_NONBLOCKING * AUDIO_MAX_RATIO;
for (i = 0; i < 2; i++)
for (j = 0; j < frames; j++)
out_deinterleaved_buffer[i][j] = buf[j * 2 + i];
size_t written = 0; size_t written = 0;
while (written < frames) while (written < frames)
{ {