Merge branch 'main' of github.com:pytorch/torchcodec into avoid_seeking_checks

Author: NicolasHug

src/torchcodec/_core/SingleStreamDecoder.cpp

@@ -1116,7 +1116,11 @@ bool SingleStreamDecoder::canWeAvoidSeeking() const {
     // within getFramesPlayedInRangeAudio(), when setCursorPtsInSeconds() was
     // called. For more context, see [Audio Decoding Design]
     return !cursorWasJustSet_;
+  } else if (!cursorWasJustSet_) {
+    // For videos, when decoding consecutive frames, we don't need to seek.
+    return true;
   }
+
   if (cursor_ < lastDecodedAvFramePts_) {
     // We can never skip a seek if we are seeking backwards.
     return false;