am 90892d1b: Merge "Fix SIGABRT when playing mp4 file"

                    mLastTrack->meta->setInt32(kKeyEncoderDelay, delay);

                    int64_t paddingus = duration - (segment_duration + media_time);

                    if (paddingus < 0) {

                        // track duration from media header (which is what kKeyDuration is) might

                        // be slightly shorter than the segment duration, which would make the

                        // padding negative. Clamp to zero.

                        paddingus = 0;

                    }

                    int64_t paddingsamples = (paddingus * samplerate + 500000) / 1000000;

                    mLastTrack->meta->setInt32(kKeyEncoderPadding, paddingsamples);

                }