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Fix error with NULL sample handling in audiofilters.Filter. #9787

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merged 2 commits into from
Nov 5, 2024
Merged

Fix error with NULL sample handling in audiofilters.Filter. #9787

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63c3e39
Fix error with NULL sample handling in `audiofilters.Filter`.
relic-se Nov 4, 2024
0aab00d
Fix 16-bit unsigned integer silence within audio effects.
relic-se Nov 5, 2024
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5 changes: 4 additions & 1 deletion shared-module/audiodelays/Echo.c
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Original file line number Diff line number Diff line change
Expand Up @@ -342,7 +342,10 @@ audioio_get_buffer_result_t audiodelays_echo_get_buffer(audiodelays_echo_obj_t *
} else {
// For unsigned samples set to the middle which is "quiet"
if (MP_LIKELY(self->bits_per_sample == 16)) {
memset(word_buffer, 32768, length * (self->bits_per_sample / 8));
uint16_t *uword_buffer = (uint16_t *)word_buffer;
while (length--) {
*uword_buffer++ = 32768;
}
} else {
memset(hword_buffer, 128, length * (self->bits_per_sample / 8));
}
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20 changes: 18 additions & 2 deletions shared-module/audiofilters/Filter.c
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Original file line number Diff line number Diff line change
Expand Up @@ -240,8 +240,24 @@ audioio_get_buffer_result_t audiofilters_filter_get_buffer(audiofilters_filter_o
}
}

// If we have a sample, filter it
if (self->sample != NULL) {
if (self->sample == NULL) {
if (self->samples_signed) {
memset(word_buffer, 0, length * (self->bits_per_sample / 8));
} else {
// For unsigned samples set to the middle which is "quiet"
if (MP_LIKELY(self->bits_per_sample == 16)) {
uint16_t *uword_buffer = (uint16_t *)word_buffer;
while (length--) {
*uword_buffer++ = 32768;
}
} else {
memset(hword_buffer, 128, length * (self->bits_per_sample / 8));
}
}

length = 0;
} else {
// we have a sample to play and filter
// Determine how many bytes we can process to our buffer, the less of the sample we have left and our buffer remaining
uint32_t n = MIN(self->sample_buffer_length, length);

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