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resample: implement resample disable

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Implement the option to completely disable the resampler.
This commit is contained in:
Wim Taymans 2022-01-18 18:05:36 +01:00
parent 3e73f05af4
commit 18607ee5e3
2 changed files with 21 additions and 11 deletions
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30
spa/plugins/audioconvert/resample.c
View file

@ -281,7 +281,7 @@ static int resample_set_param(struct impl *this, const char *k, const char *s)
{
if (spa_streq(k, "resample.quality"))
this->props.quality = atoi(s);
else if (spa_streq(k, "resample.disabled"))
else if (spa_streq(k, "resample.disable"))
this->props.disabled = spa_atob(s);
return 0;
}
@ -417,12 +417,16 @@ static void update_rate_match(struct impl *this, bool passthrough, uint32_t out_
resample_update_rate(&this->resample, this->rate_scale * this->props.rate);
}
}
static inline bool is_passthrough(struct impl *this)
{
return this->resample.i_rate == this->resample.o_rate && this->rate_scale == 1.0 &&
(this->io_rate_match == NULL || this->props.disabled ||
!SPA_FLAG_IS_SET(this->io_rate_match->flags, SPA_IO_RATE_MATCH_FLAG_ACTIVE));
}
static void recalc_rate_match(struct impl *this)
{
bool passthrough = this->resample.i_rate == this->resample.o_rate &&
(this->io_rate_match == NULL ||
!SPA_FLAG_IS_SET(this->io_rate_match->flags, SPA_IO_RATE_MATCH_FLAG_ACTIVE));
bool passthrough = is_passthrough(this);
uint32_t out_size = this->io_position ? this->io_position->clock.duration : 1024;
update_rate_match(this, passthrough, out_size, 0);
}
@ -538,20 +542,24 @@ static int port_enum_formats(void *object,
struct impl *this = object;
struct port *other;
struct spa_pod_frame f;
uint32_t rate, min = 1, max = INT32_MAX;
other = GET_PORT(this, SPA_DIRECTION_REVERSE(direction), 0);
switch (index) {
case 0:
if (other->have_format) {
rate = other->format.info.raw.rate;
if (this->props.disabled)
min = max = rate;
spa_pod_builder_push_object(builder, &f,
SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat);
spa_pod_builder_add(builder,
SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_F32P),
SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(
other->format.info.raw.rate, 1, INT32_MAX),
SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(rate, min, max),
SPA_FORMAT_AUDIO_channels, SPA_POD_Int(other->format.info.raw.channels),
0);
spa_pod_builder_prop(builder, SPA_FORMAT_AUDIO_position, 0);
@ -559,15 +567,17 @@ static int port_enum_formats(void *object,
other->format.info.raw.channels, other->format.info.raw.position);
*param = spa_pod_builder_pop(builder, &f);
} else {
uint32_t rate = this->io_position ?
rate = this->io_position ?
this->io_position->clock.rate.denom : DEFAULT_RATE;
if (this->props.disabled)
min = max = rate;
*param = spa_pod_builder_add_object(builder,
SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_F32P),
SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(rate, 1, INT32_MAX),
SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(rate, min, max),
SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(DEFAULT_CHANNELS, 1, INT32_MAX));
}
break;
@ -1052,9 +1062,7 @@ static int impl_node_process(void *object)
pin_len = in_len;
pout_len = out_len;
#endif
passthrough = this->resample.i_rate == this->resample.o_rate && this->rate_scale == 1.0 &&
(this->io_rate_match == NULL ||
!SPA_FLAG_IS_SET(this->io_rate_match->flags, SPA_IO_RATE_MATCH_FLAG_ACTIVE));
passthrough = is_passthrough(this);
if (passthrough) {
uint32_t len = SPA_MIN(in_len, out_len);

2
src/daemon/minimal.conf.in
View file

@ -191,6 +191,7 @@ context.objects = [
#audio.channels = 4
#audio.position = [ FL FR RL RR ]
#resample.quality = 4
resample.disable = true
#monitor.channel-volumes = false
#channelmix.normalize = true
#channelmix.mix-lfe = false
@ -239,6 +240,7 @@ context.objects = [
#audio.channels = 2
#audio.position = "FL,FR"
#resample.quality = 4
resample.disable = true
#channelmix.normalize = true
#channelmix.mix-lfe = false
#channelmix.upmix = false