package tv.porst.swfretools.parser.tags;
import static tv.porst.swfretools.parser.SWFParserHelpers.parseByteArray;
import static tv.porst.swfretools.parser.SWFParserHelpers.parseUINT16;
import tv.porst.splib.binaryparser.UINT16;
import tv.porst.swfretools.parser.SWFBinaryParser;
import tv.porst.swfretools.parser.SWFParserException;
import tv.porst.swfretools.parser.structures.ByteArray;
import tv.porst.swfretools.parser.structures.RecordHeader;
/**
* Class for parsing VideoFrame tags.
*/
public final class VideoFrameParser {
/**
* Parses a VideoFrame tag.
*
* @param parser Provides the input data.
* @param header Previously parsed header of the tag.
*
* @return Returns the parsed tag.
*
* @throws SWFParserException Thrown if parsing the tag failed.
*/
public static VideoFrameTag parse(final RecordHeader header, final SWFBinaryParser parser) throws SWFParserException {
final UINT16 streamId = parseUINT16(parser, 0x00006, "VideoFrame::StreamId");
final UINT16 frameNum = parseUINT16(parser, 0x00006, "VideoFrame::FrameNum");
final int dataBytes = header.getNormalizedLength() - UINT16.BYTE_LENGTH - UINT16.BYTE_LENGTH;
final ByteArray videoData = parseByteArray(parser, dataBytes < 0 ? 0 : dataBytes, 0x00006, "VideoFrame::VideoData");
return new VideoFrameTag(header, streamId, frameNum, videoData);
}
}