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Simplify seek skipping logic #1039

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Merged
NicolasHug merged 2 commits into from
Nov 12, 2025
Merged

Simplify seek skipping logic #1039

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86ec99e
Simplify seek skipping logic
NicolasHug Nov 11, 2025
abc2cb1
Minor change
NicolasHug Nov 11, 2025
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9 changes: 5 additions & 4 deletions src/torchcodec/_core/SingleStreamDecoder.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1100,6 +1100,9 @@ I P P P I P P P I P P I P P I P
*/
bool SingleStreamDecoder::canWeAvoidSeeking() const {
const StreamInfo& streamInfo = streamInfos_.at(activeStreamIndex_);
if (!cursorWasJustSet_) {
return true;
}
if (streamInfo.avMediaType == AVMEDIA_TYPE_AUDIO) {
// For audio, we only need to seek if a backwards seek was requested
// within getFramesPlayedInRangeAudio(), when setCursorPtsInSeconds() was
Expand Down Expand Up @@ -1181,10 +1184,8 @@ UniqueAVFrame SingleStreamDecoder::decodeAVFrame(

resetDecodeStats();

if (cursorWasJustSet_) {
maybeSeekToBeforeDesiredPts();
cursorWasJustSet_ = false;
}
maybeSeekToBeforeDesiredPts();
cursorWasJustSet_ = false;

UniqueAVFrame avFrame(av_frame_alloc());
AutoAVPacket autoAVPacket;
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