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CrossFade: use negative value for invalid mixramp_delay

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Avoid NaN to allow -ffast-math.
This commit is contained in:
Max Kellermann 2013-10-30 16:50:34 +01:00
parent a21edddf27
commit a65f63747b
3 changed files with 5 additions and 6 deletions
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2
src/CrossFade.cxx
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@ -108,7 +108,7 @@ CrossFadeSettings::Calculate(float total_time,
chunks_f = (float)af.GetTimeToSize() / (float)CHUNK_SIZE;
if (std::isnan(mixramp_delay) || !mixramp_start || !mixramp_prev_end) {
if (mixramp_delay <= 0 || !mixramp_start || !mixramp_prev_end) {
chunks = (chunks_f * duration + 0.5);
} else {
/* Calculate mixramp overlap. */

7
src/CrossFade.hxx
View File

@ -22,8 +22,6 @@
#include "Compiler.h"
#include <cmath>
struct AudioFormat;
struct CrossFadeSettings {
@ -35,14 +33,15 @@ struct CrossFadeSettings {
float mixramp_db;
/**
* The configured MixRapm delay [s].
* The configured MixRapm delay [s]. A non-positive value
* disables MixRamp.
*/
float mixramp_delay;
CrossFadeSettings()
:duration(0),
mixramp_db(0),
mixramp_delay(std::nanf(""))
mixramp_delay(-1)
{}

2
src/PlayerThread.cxx
View File

@ -779,7 +779,7 @@ Player::PlayNextChunk()
other_chunk->tag);
other_chunk->tag = nullptr;
if (std::isnan(pc.cross_fade.mixramp_delay)) {
if (pc.cross_fade.mixramp_delay <= 0) {
chunk->mix_ratio = ((float)cross_fade_position)
/ cross_fade_chunks;
} else {