Java Xuggle编解码器识别失败
我正在尝试运行以下代码: 其中stream是文件路径。但我得到了以下例外:Java Xuggle编解码器识别失败,java,codec,xuggle,Java,Codec,Xuggle,我正在尝试运行以下代码: 其中stream是文件路径。但我得到了以下例外: java.lang.IllegalArgumentException: could not find input codec id at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:393) at com.xuggle.xuggler.IContainerFormat.establishOutputC
java.lang.IllegalArgumentException: could not find input codec id
at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:393)
at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:327)
at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:300)
at com.xuggle.mediatool.MediaWriter.addStreamFromContainer(MediaWriter.java:1141)
at com.xuggle.mediatool.MediaWriter.getStream(MediaWriter.java:1046)
at com.xuggle.mediatool.MediaWriter.encodeAudio(MediaWriter.java:837)
at com.xuggle.mediatool.MediaWriter.onAudioSamples(MediaWriter.java:1448)
at com.xuggle.mediatool.AMediaToolMixin.onAudioSamples(AMediaToolMixin.java:89)
at com.xuggle.mediatool.MediaReader.dispatchAudioSamples(MediaReader.java:628)
at com.xuggle.mediatool.MediaReader.decodeAudio(MediaReader.java:555)
at com.xuggle.mediatool.MediaReader.readPacket(MediaReader.java:469)
at <package_name>MediaFile.convert(MediaFile.java:66)
at <package_name>.MediaFileTest.shouldConvertExistingFLV(MediaFileTest.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
那么,既然我正在测试一个简单的flv到mp3转换,为什么他找不到编解码器呢?如果你的源是一个真实的flv流(没有奇怪的编解码器信息),那么这应该可以工作。我认为这里只会出现两个问题:
- 在编写器开始编码之前,没有足够的元数据信息。例如,没有检测到编解码器。
- 由于传入视频对mp3容器类型无效,因此导致故障。编写媒体工具以忽略视频。
希望有帮助诀窍在于在编写器上添加音频流。这个代码片段在从flv中提取音频流并将其转换为mp3时对我有用
IMediaReader reader = ToolFactory.makeReader(filename + ".flv");
IMediaWriter writer = ToolFactory.makeWriter(filename + ".mp3", reader);
int sampleRate = 22050;
int channels = 1;
writer.addAudioStream(0, 0, ICodec.ID.CODEC_ID_MP3, channels, sampleRate);
reader.addListener(writer);
while (reader.readPacket() == null)
;
你在哪里能找到这个问题的答案?我被卡住了,我没有,我的公司当时改成了wowza。
@Test
public void shouldConvertExistingFLV() throws IOException, InterruptedException {
String str = "C:\\Program Files\\Wowza Media Systems\\Wowza Media Server 2\\content\\Extremists";
boolean result = MediaFile.convert(str);
assertTrue(result);
}
IMediaReader reader = ToolFactory.makeReader(filename + ".flv");
IMediaWriter writer = ToolFactory.makeWriter(filename + ".mp3", reader);
int sampleRate = 22050;
int channels = 1;
writer.addAudioStream(0, 0, ICodec.ID.CODEC_ID_MP3, channels, sampleRate);
reader.addListener(writer);
while (reader.readPacket() == null)
;