public IsoBufferWrapper nextNALUnit() throws IOException {
if (src.remaining() < 5) {
return null;
}
long nalLength;
if (src.remaining() >= nalLengthSize) {
// nalLength = src.read(nalLengthSize);
nalLength = src.readUInt32();
if (nalLength == 0) return null;
IsoBufferWrapper segment = src.getSegment(src.position(), nalLength);
src.position(src.position() + nalLength);
return segment;
} else {
throw new RuntimeException(
"remaining bytes less than nalLengthSize found in sample. should not be here.");
}
}
