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with Block::set_length_and_* functions, keep the speeds correct

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With differently set speeds, these functions would mess with the timing in ways
that would be confusing to the user. Now they act in a much more intuitive way
and also prevent negative media times.
This commit is contained in:
itsmattkc
2019-12-19 02:26:30 +11:00
parent 0d51f606df
commit b308f753b3
3 changed files with 20 additions and 9 deletions
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app/render/backend/audiorenderworker.cpp
+3 -7
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@@ -54,19 +54,15 @@ NodeValueTable AudioRenderWorker::RenderBlock(const TrackOutput *track, const Ti
// Stretch samples here
if (b->media_length() != b->length()) {
QByteArray speed_adjusted_samples;
double clip_speed = b->speed();
int sample_count = audio_params_.bytes_to_samples(samples_from_this_block.size());
qDebug() << "Adjusting audio to speed" << clip_speed;
double clip_speed = b->speed();
int sample_count = audio_params_.bytes_to_samples(samples_from_this_block.size());
for (double i=0;i<sample_count;i+=clip_speed) {
int sample_index = qFloor(i);
int byte_index = audio_params_.samples_to_bytes(sample_index);
if (byte_index >= samples_from_this_block.size() || (byte_index + audio_params_.samples_to_bytes(1)) > samples_from_this_block.size()) {
qDebug() << "Tried to access" << byte_index << "-" << (byte_index + audio_params_.samples_to_bytes(1)) << "of" << samples_from_this_block.size();
}
QByteArray sample_at_this_index = samples_from_this_block.mid(byte_index, audio_params_.samples_to_bytes(1));
speed_adjusted_samples.append(sample_at_this_index);
}