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removed old retrieve code from ffmpegdecoder

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Code cleanup
This commit is contained in:
itsmattkc
2019-11-24 02:04:37 +09:00
parent 9a05e2e848
commit 59f658f73a
1 changed files with 0 additions and 47 deletions
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app/decoder/ffmpeg/ffmpegdecoder.cpp
-47
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@@ -189,53 +189,6 @@ FramePtr FFmpegDecoder::Retrieve(const rational &timecode, const rational &lengt
return nullptr;
}
/*
// Check if this is already the frame we have cached
if (frame_->pts != target_ts) {
// Cache FFmpeg error code returns
int ret = 0;
// Set up seeking loop
int64_t seek_ts = target_ts;
int64_t second_ts = qRound(rational(avstream_->time_base).flipped().toDouble());
bool got_frame = false;
bool last_backtrack = false;
// FFmpeg frame retrieve loop
while ((ret >= 0 || ret == AVERROR_EOF) && frame_->pts != target_ts) {
// If the frame timestamp is too large, we need to seek back a little
if (got_frame && (frame_->pts > target_ts || frame_->pts == AV_NOPTS_VALUE)) {
// If we already tried seeking to 0 though, there's nothing we can do so we error here
if (last_backtrack) {
// Must be the earliest frame in the file
break;
}
// We can't seek earlier than 0, so if this is a 0-seek, don't try any more times after this attempt
if (seek_ts <= 0) {
seek_ts = 0;
last_backtrack = true;
}
Seek(seek_ts);
// FFmpeg doesn't always seek correctly, if we have to seek again we wrangle it into seeking back far enough
seek_ts -= second_ts;
}
ret = GetFrame();
got_frame = true;
}
// Handle any errors received during the frame retrieve process
if (ret < 0) {
FFmpegError(ret);
return nullptr;
}
}
*/
QFile compressed_frame(GetIndexFilename().append(QString::number(target_ts)));
if (compressed_frame.open(QFile::ReadOnly)) {
QByteArray frame_loader = qUncompress(compressed_frame.readAll());