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audioconvert: configure resample channels correctly

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Depending on the direction of the conversion, we run the resampler
before or after the channelmix. This means we need to use the channel
count before or after the channelmixer instead of always using the
channels after channelmixing.

Fixes #4595
This commit is contained in:
Wim Taymans 2025-03-11 11:50:48 +01:00
parent a503244c10
commit d43fb09ea1
1 changed files with 9 additions and 3 deletions
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12
spa/plugins/audioconvert/audioconvert.c
View file

@ -1971,13 +1971,19 @@ static int setup_resample(struct impl *this)
struct dir *in = &this->dir[SPA_DIRECTION_INPUT];
struct dir *out = &this->dir[SPA_DIRECTION_OUTPUT];
int res;
uint32_t channels;
if (this->direction == SPA_DIRECTION_INPUT)
channels = in->format.info.raw.channels;
else
channels = out->format.info.raw.channels;
spa_log_info(this->log, "%p: %s/%d@%d->%s/%d@%d", this,
spa_debug_type_find_name(spa_type_audio_format, SPA_AUDIO_FORMAT_DSP_F32),
out->format.info.raw.channels,
channels,
in->format.info.raw.rate,
spa_debug_type_find_name(spa_type_audio_format, SPA_AUDIO_FORMAT_DSP_F32),
out->format.info.raw.channels,
channels,
out->format.info.raw.rate);
if (this->props.resample_disabled && !this->resample_peaks &&
@ -1987,7 +1993,7 @@ static int setup_resample(struct impl *this)
if (this->resample.free)
resample_free(&this->resample);
this->resample.channels = out->format.info.raw.channels;
this->resample.channels = channels;
this->resample.i_rate = in->format.info.raw.rate;
this->resample.o_rate = out->format.info.raw.rate;
this->resample.log = this->log;