本文整理汇总了Java中org.jcodec.common.NIOUtils.readableFileChannel方法的典型用法代码示例。如果您正苦于以下问题：Java NIOUtils.readableFileChannel方法的具体用法？Java NIOUtils.readableFileChannel怎么用？Java NIOUtils.readableFileChannel使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.jcodec.common.NIOUtils的用法示例。
在下文中一共展示了NIOUtils.readableFileChannel方法的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: webOptimize
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
public static void webOptimize(String path) throws IOException {
File orig = new File(path);
SeekableByteChannel input = NIOUtils.readableFileChannel(orig);
MovieBox movie = MP4Util.createRefMovie(input, "file://" + orig.getCanonicalPath());
File optim = new File(path + "_optim");
new Flattern().flattern(movie, optim);
input.close();
Files.move(Paths.get(path + "_optim"), Paths.get(path), StandardCopyOption.REPLACE_EXISTING); // doesn't work on DOS
}
示例2: JCodecAccess
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
public JCodecAccess(URLVideoSource src, int numPlays) throws IOException, URISyntaxException {
super(src, numPlays);
this.channel = NIOUtils.readableFileChannel(new File(src.getURL().toURI()));
try {
this.grab = new FrameGrab(channel);
} catch(JCodecException e) {
throw new IOException(e);
}
}
示例3: MP4VideoDemuxer
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
/**
* Create a new demuxer
*
* @param file File to oper
* @throws IOException
*/
public MP4VideoDemuxer(File file) throws IOException
{
SeekableByteChannel input = NIOUtils.readableFileChannel(file);
MP4Demuxer demuxer = new MP4Demuxer(input);
videoTrack = demuxer.getVideoTrack();
if(videoTrack instanceof FramesMP4DemuxerTrack)
{
buffer = ByteBuffer.allocateDirect(((FramesMP4DemuxerTrack) videoTrack).getMaxSize());
}
else
{
throw new IOException("Incompatible video track");
}
String fourcc = videoTrack.getFourcc();
if (fourcc.equals("avc1"))
{
demuxerHelper = new AVCDemuxerHelper(videoTrack.getSampleEntries());
}
else if (fourcc.equals("jpeg"))
{
demuxerHelper = new JPEGDemuxerHelper(videoTrack.getSampleEntries());
}
else
{
throw new IOException("Cannot decode fourcc " + fourcc);
}
}
示例4: getFrame
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
/**
* Get frame at a specified second as AWT image
*
* @param file
* @param second
* @return
* @throws IOException
* @throws JCodecException
*/
public static BufferedImage getFrame(File file, double second) throws IOException, JCodecException {
FileChannelWrapper ch = null;
try {
ch = NIOUtils.readableFileChannel(file);
return ((FrameGrab) new FrameGrab(ch).seekToSecondPrecise(second)).getFrame();
} finally {
NIOUtils.closeQuietly(ch);
}
}
示例5: getNativeFrame
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
/**
* Get frame at a specified second as JCodec image
*
* @param file
* @param second
* @return
* @throws IOException
* @throws JCodecException
*/
public static Picture getNativeFrame(File file, double second) throws IOException, JCodecException {
FileChannelWrapper ch = null;
try {
ch = NIOUtils.readableFileChannel(file);
return new FrameGrab(ch).seekToSecondPrecise(second).getNativeFrame();
} finally {
NIOUtils.closeQuietly(ch);
}
}
示例6: main
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
public static void main(String[] args) throws IOException {
FileChannelWrapper ch = null;
FileChannelWrapper out = null;
try {
ch = NIOUtils.readableFileChannel(new File(args[0]));
out = NIOUtils.writableFileChannel(new File(args[1]));
new MKVShiftTimecodes(Integer.parseInt(args[2])).run(ch, out);
} finally {
NIOUtils.closeQuietly(ch);
NIOUtils.closeQuietly(out);
}
}
示例7: getPrograms
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
public static List<PMTStream> getPrograms(File src) throws IOException {
SeekableByteChannel ch = null;
try {
ch = NIOUtils.readableFileChannel(src);
return getProgramGuids(ch);
} finally {
NIOUtils.closeQuietly(ch);
}
}
示例8: getPrograms
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
public static Set<Integer> getPrograms(File file) throws IOException {
FileChannelWrapper fc = null;
try {
fc = NIOUtils.readableFileChannel(file);
return getPrograms(fc);
} finally {
NIOUtils.closeQuietly(fc);
}
}
示例9: getMediaInfo
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
public List<MPEGTrackMetadata> getMediaInfo(File f) throws IOException {
FileChannelWrapper ch = null;
final List<MTSUtils.PMT> pmtSections = new ArrayList<MTSUtils.PMT>();
final Map<Integer, MPSMediaInfo> pids = new HashMap<Integer, MPSMediaInfo>();
final List<MPEGTrackMetadata> result = new ArrayList<MPEGTrackMetadata>();
try {
ch = NIOUtils.readableFileChannel(f);
new MTSUtils.TSReader() {
private ByteBuffer pmtBuffer;
private int pmtPid = -1;
private boolean pmtDone;
protected boolean onPkt(int guid, boolean payloadStart, ByteBuffer tsBuf, long filePos) {
if (guid == 0) {
pmtPid = MTSUtils.parsePAT(tsBuf);
} else if (guid == pmtPid && !pmtDone) {
if (pmtBuffer == null) {
pmtBuffer = ByteBuffer.allocate(((tsBuf.duplicate().getInt() >> 8) & 0x3ff) + 3);
} else if (pmtBuffer.hasRemaining()) {
NIOUtils.write(pmtBuffer, tsBuf, Math.min(pmtBuffer.remaining(), tsBuf.remaining()));
}
if (!pmtBuffer.hasRemaining()) {
pmtBuffer.flip();
PMT pmt = MTSUtils.parsePMT(pmtBuffer);
pmtSections.add(pmt);
for (PMTStream stream : pmt.getStreams()) {
if (!pids.containsKey(stream.getPid()))
pids.put(stream.getPid(), new MPSMediaInfo());
}
pmtDone = pmt.getSectionNumber() == pmt.getLastSectionNumber();
pmtBuffer = null;
}
} else if (pids.containsKey(guid)) {
try {
pids.get(guid).analyseBuffer(tsBuf, filePos);
} catch (MediaInfoDone e) {
result.addAll(pids.get(guid).getInfos());
pids.remove(guid);
if (pids.size() == 0)
return false;
}
}
return true;
}
}.readTsFile(ch);
} finally {
NIOUtils.closeQuietly(ch);
}
return result;
}
示例10: newChannel
import org.jcodec.common.NIOUtils; //导入方法依赖的package包/类
protected SeekableByteChannel newChannel(File file) throws FileNotFoundException {
return NIOUtils.readableFileChannel(file);
}