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- rework volume adjustment code to not require fp

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- don't hit an assert when we cannot do a volume adjustment, instead, print a warning and go on


git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1882 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-09-22 00:25:17 +00:00
parent d7a0876d7f
commit 78a9ad336b
1 changed files with 33 additions and 43 deletions
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68
src/pulsecore/sample-util.c
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@ -173,12 +173,10 @@ size_t pa_mix(
if (volume->values[channel] != PA_VOLUME_NORM)
sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
if (sum < -0x8000) sum = -0x8000;
if (sum > 0x7FFF) sum = 0x7FFF;
sum = CLAMP(sum, -0x8000, 0x7FFF);
}
*((int16_t*) data) = sum;
*((int16_t*) data) = (int16_t) sum;
data = (uint8_t*) data + sizeof(int16_t);
if (++channel >= spec->channels)
@ -222,12 +220,10 @@ size_t pa_mix(
if (volume->values[channel] != PA_VOLUME_NORM)
sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
if (sum < -0x8000) sum = -0x8000;
if (sum > 0x7FFF) sum = 0x7FFF;
sum = CLAMP(sum, -0x8000, 0x7FFF);
}
*((int16_t*) data) = INT16_SWAP(sum);
*((int16_t*) data) = INT16_SWAP((int16_t) sum);
data = (uint8_t*) data + sizeof(int16_t);
if (++channel >= spec->channels)
@ -271,9 +267,7 @@ size_t pa_mix(
if (volume->values[channel] != PA_VOLUME_NORM)
sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
if (sum < -0x80) sum = -0x80;
if (sum > 0x7F) sum = 0x7F;
sum = CLAMP(sum, -0x80, 0x7F);
}
*((uint8_t*) data) = (uint8_t) (sum + 0x80);
@ -368,23 +362,22 @@ void pa_volume_memchunk(
ptr = pa_memblock_acquire(c->memblock);
switch (spec->format) {
case PA_SAMPLE_S16NE: {
int16_t *d;
size_t n;
unsigned channel;
double linear[PA_CHANNELS_MAX];
int32_t linear[PA_CHANNELS_MAX];
for (channel = 0; channel < spec->channels; channel++)
linear[channel] = pa_sw_volume_to_linear(volume->values[channel]);
linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
for (channel = 0, d = (int16_t*) ((uint8_t*) ptr + c->index), n = c->length/sizeof(int16_t); n > 0; d++, n--) {
int32_t t = (int32_t)(*d);
t = (int32_t) (t * linear[channel]);
if (t < -0x8000) t = -0x8000;
if (t > 0x7FFF) t = 0x7FFF;
int32_t t;
t = (int32_t)(*d);
t = (t * linear[channel]) / 0x10000;
t = CLAMP(t, -0x8000, 0x7FFF);
*d = (int16_t) t;
if (++channel >= spec->channels)
@ -397,19 +390,17 @@ void pa_volume_memchunk(
int16_t *d;
size_t n;
unsigned channel;
double linear[PA_CHANNELS_MAX];
int32_t linear[PA_CHANNELS_MAX];
for (channel = 0; channel < spec->channels; channel++)
linear[channel] = pa_sw_volume_to_linear(volume->values[channel]);
linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
for (channel = 0, d = (int16_t*) ((uint8_t*) ptr + c->index), n = c->length/sizeof(int16_t); n > 0; d++, n--) {
int32_t t = (int32_t)(INT16_SWAP(*d));
t = (int32_t) (t * linear[channel]);
if (t < -0x8000) t = -0x8000;
if (t > 0x7FFF) t = 0x7FFF;
int32_t t;
t = (int32_t)(INT16_SWAP(*d));
t = (t * linear[channel]) / 0x10000;
t = CLAMP(t, -0x8000, 0x7FFF);
*d = INT16_SWAP((int16_t) t);
if (++channel >= spec->channels)
@ -422,16 +413,18 @@ void pa_volume_memchunk(
case PA_SAMPLE_U8: {
uint8_t *d;
size_t n;
unsigned channel = 0;
unsigned channel;
int32_t linear[PA_CHANNELS_MAX];
for (d = (uint8_t*) ptr + c->index, n = c->length; n > 0; d++, n--) {
int32_t t = (int32_t) *d - 0x80;
for (channel = 0; channel < spec->channels; channel++)
linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
t = (int32_t) (t * pa_sw_volume_to_linear(volume->values[channel]));
if (t < -0x80) t = -0x80;
if (t > 0x7F) t = 0x7F;
for (channel = 0, d = (uint8_t*) ptr + c->index, n = c->length; n > 0; d++, n--) {
int32_t t;
t = (int32_t) *d - 0x80;
t = (t * linear[channel]) / 0x10000;
t = CLAMP(t, -0x80, 0x7F);
*d = (uint8_t) (t + 0x80);
if (++channel >= spec->channels)
@ -457,7 +450,6 @@ void pa_volume_memchunk(
continue;
v = (float) pa_sw_volume_to_linear(volume->values[channel]);
t = d + channel;
oil_scalarmult_f32(t, skip, t, skip, &v, n);
}
@ -465,9 +457,8 @@ void pa_volume_memchunk(
}
default:
pa_log_error("ERROR: Unable to change volume of format %s.",
pa_sample_format_to_string(spec->format));
abort();
pa_log_warn(" Unable to change volume of format %s.", pa_sample_format_to_string(spec->format));
/* If we cannot change the volume, we just don't do it */
}
pa_memblock_release(c->memblock);
@ -492,4 +483,3 @@ int pa_frame_aligned(size_t l, const pa_sample_spec *ss) {
return l % fs == 0;
}