java多媒体文件编码 处理工具类代码实例

java多媒体文件编码 处理工具类代码实例

这篇文章主要介绍了java多媒体文件编码 处理工具类使用解析,http://文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

引入

org.apache.storm

storm-core

1.1.0

org.apache.storm

storm-kafka

1.0.4

org.jcodec

jcodec

0.2.5

test

io.humble

humble-video-all

0.3.0

org.mp4parser

isoparser

1.9.39

代码

/***

*https://stackoverflow.com/questions/38123693/how-to-concatenate-merge-two-videos-in-a-new-video-file-in-java

* @param aggregate 合并待输出文件

* @param segments MPEG transport stream(FFMpeg mpegts)、 MPEG-2 TS视频;波形声音

* @throws InterruptedException

* @throws IOException

*/

private void merge(File aggregate, Collection segments) throws InterruptedException, IOException {

Muxer muxer = Muxer.make(aggregate.toString(), MuxerFormat.getFormat(96), "wav");

final MediaPacket packet = MediaPacket.make();

long dts_offset = 0;

long pts_offset = 0;

for (File segment : segments) {

Demuxer demuxer = Demuxer.make();

//option https://http://ffmpeg.org/ffmpeg-formats.html

demuxer.open(segment.toString(), null, false, true, null, null);

if (muxer.getState() == Muxer.State.STATE_INITED) {

int numStreams = demuxer.getNumStreams();

for (int s = 0; s < numStreams; s++) {

DemuxerStream demuxerStream = demuxer.getStream(s);

Decoder decoder = demuxerStream.getDecoder();

muxer.addNewStream(decoder);

}

muxer.open(null, null);

}

long dts_max = 0;

long pts_max = 0;

while (demuxer.read(packet) >= 0) {

if (packet.isComplete()) {

packet.setDts(packet.getDts() + dts_offset);

packet.setPts(packet.getPts() + pts_offset);

dts_max = packet.getDts() + 1;

pts_max = packet.getPts() + 1;

muxer.write(packet, false);

}

}

dts_offset = dts_max;

pts_offset = pts_max;

demuxer.close();

}

muxer.close();

}

测试

@Test

public void testFormat()

{

MuxerFormat format = MuxerFormat.getFormat(128);

System.out.println(format);

Collection formats = MuxerFormat.getFormats();

formats.stream().forEach(this::out);

}

void out(MuxerFormat format)

{

System.out.printf("%s %s\n",format.getName(),format.getMimeType());

}

@Test

public void test() throws IOException, InterruptedException {

String directory = "C:\\Users\\Administrator\\AppData\\Local\\Temp\\8ad088a2-0bb3-41dc-89d9-2c57ef8414b0";

List files = Files.list(Paths.get(directory)).map(path -> path.toFile()).filter(file -> file.getName().endsWith(".ts"))

.collect(Collectors.toList());

File dest = new File(directory+"\\dest.wav");

merge(dest,files);

}

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