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correctly affect speed/reversing when shuttling audio

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itsmattkc
2020-01-07 16:41:30 +11:00
parent c938055293
commit a616aaa182
11 changed files with 433 additions and 27 deletions
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app/render/backend/audiorenderworker.cpp
+2 -15
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@@ -73,21 +73,8 @@ NodeValueTable AudioRenderWorker::RenderBlock(const TrackOutput *track, const Ti
}
if (b->is_reversed()) {
int sample_size = audio_params_.samples_to_bytes(1);
int half_buffer_sz = samples_from_this_block.size() / 2;
char* temp_buffer = new char[sample_size];
for (int src_index=0;src_index<half_buffer_sz;src_index+=sample_size) {
char* src_ptr = samples_from_this_block.data() + src_index;
char* dst_ptr = samples_from_this_block.data() + samples_from_this_block.size() - sample_size - src_index;
// Simple swap
memcpy(temp_buffer, src_ptr, static_cast<size_t>(sample_size));
memcpy(src_ptr, dst_ptr, static_cast<size_t>(sample_size));
memcpy(dst_ptr, temp_buffer, static_cast<size_t>(sample_size));
}
delete [] temp_buffer;
// Reverse the audio buffer
AudioManager::ReverseBuffer(samples_from_this_block.data(), samples_from_this_block.size(), audio_params_.samples_to_bytes(1));
}
copied_size = samples_from_this_block.size();