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implemented preliminary pre-cacher for audio

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FFmpegDecoder now implements an "indexer" for audio, which actually just
extracts the raw PCM audio from an audio codec and saves it to disk
This commit is contained in:
itsmattkc
2019-10-24 16:36:26 +11:00
parent 52f4c59bec
commit 2fdf78df4a
14 changed files with 370 additions and 36 deletions
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app/common/timecodefunctions.cpp
+23 -6
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@@ -35,8 +35,24 @@ QString olive::timestamp_to_timecode(const int64_t &timestamp,
{
double timestamp_dbl = (rational(timestamp) * timebase).toDouble();
// Determine what symbol to separate frames (";" is used for drop frame, ":" is non-drop frame)
QString frame_token = ";";
switch (display) {
case kTimecodeFrames:
case kTimecodeNonDropFrame:
frame_token = ":";
// Convert timestamp from drop frame to non-drop frame
// FIXME: There's probably a better way to do this
if (timebase == rational(1001, 30000)) {
timestamp_dbl = timestamp_dbl / (30000.0/1001.0) * 30.0;
} else if (timebase == rational(1001, 60000)) {
timestamp_dbl = timestamp_dbl / (60000.0/1001.0) * 60.0;
} else if (timebase == rational(1001, 24000)) {
timestamp_dbl = timestamp_dbl / (24000.0/1001.0) * 24.0;
}
/* fall-through */
case kTimecodeDropFrame:
case kTimecodeSeconds:
{
QString prefix;
@@ -68,11 +84,12 @@ QString olive::timestamp_to_timecode(const int64_t &timestamp,
int frames = qRound((timestamp_dbl - total_seconds) * frame_rate.toDouble());
return QString("%1%2:%3:%4;%5").arg(prefix,
padded(hours, 2),
padded(mins, 2),
padded(secs, 2),
padded(frames, 2));
return QString("%1%2:%3:%4%5%6").arg(prefix,
padded(hours, 2),
padded(mins, 2),
padded(secs, 2),
frame_token,
padded(frames, 2));
}
}
case kFrames: