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better audio IO

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This commit is contained in:
itsmattkc
2018-06-22 02:32:37 -07:00
parent 72d15b9ed9
commit 26f7b5a15d
15 changed files with 254 additions and 157 deletions
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playback/audio.cpp
+11 -1
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@@ -15,7 +15,7 @@ bool audio_device_set = false;
qint8 audio_ibuffer[audio_ibuffer_size];
int audio_ibuffer_read = 0;
QVector<int> audio_ibuffer_write;
long audio_ibuffer_frame = 0;
void init_audio() {
if (audio_device_set) {
@@ -51,4 +51,14 @@ void init_audio() {
void clear_audio_ibuffer() {
memset(audio_ibuffer, 0, audio_ibuffer_size);
audio_ibuffer_read = 0;
}
int get_buffer_offset_from_frame(long frame) {
if (frame >= audio_ibuffer_frame) {
return av_samples_get_buffer_size(NULL, av_get_channel_layout_nb_channels(sequence->audio_layout), ((frame-audio_ibuffer_frame)/sequence->frame_rate)*sequence->audio_frequency, AV_SAMPLE_FMT_S16, 1);
} else {
qDebug() << "[WARNING] get_buffer_offset_from_frame called incorrectly";
return 0;
}
}