2

我正在尝试学习使用相机的 onPreviewFrame 回调对 mp4 或任何类型的视频文件进行编码。

目前，我正在尝试这篇文章中的示例代码

使用 Android MediaCodec 从摄像头编码 H.264

不幸的是，我不断收到 IllegalException

mediaCodec.configure(mediaFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);

从另一个帖子 IllegalStateException when MediaCodec.configure Android中，我注意到我必须为 MediaCodec 设置一些强制值。

我尝试了所有强制媒体编解码器的强制值，但仍然没有通过

非法异常。

现在我有点想不通了。任何建议、意见或提示将不胜感激。

谢谢

11-04 12:27:14.785      175-894/? E/mm-libcamera2﹕ PROFILE HAL: stopPreview(): E: 1383596834.803557773
11-04 12:27:14.795      175-175/? E/OMXNodeInstance﹕ !!! Observer died. Quickly, do something, ... anything...
11-04 12:27:14.795     208-5797/? E/mm-camera﹕ config_shutdown_pp Camera not in streaming mode. Returning.
11-04 12:27:14.795     208-5797/? E/mm-camera﹕ vfe_ops_deinit: E
11-04 12:27:14.825     175-5814/? E/OMX-VENC-720p﹕ ioctl VEN_IOCTL_CMD_READ_NEXT_MSG failed
11-04 12:27:14.825      175-175/? E/OMX-VENC-720p﹕ Destroy C2D instance
11-04 12:27:14.835      527-539/? E/qcom_sensors_hal﹕ hal_process_report_ind: Bad item quality: 11
11-04 12:28:17.642    6241-6247/? E/jdwp﹕ Failed sending reply to debugger: Broken pipe
11-04 12:28:17.912      527-539/? E/qcom_sensors_hal﹕ hal_process_report_ind: Bad item quality: 11
11-04 12:28:17.922     208-6264/? E/mm-camera﹕ sensor_load_chromatix: libchromatix_imx111_preview.so: 30
11-04 12:28:18.032     208-6264/? E/mm-camera﹕ vfe_ops_init: E
11-04 12:28:18.042     208-6264/? E/mm-camera﹕ vfe_legacy_stats_buffer_init: AEC_STATS_BUFNUM
11-04 12:28:18.052     208-6264/? E/mm-camera﹕ vfe_legacy_stats_buffer_init: AEC_STATS_BUFNUM
11-04 12:28:18.052     208-6264/? E/mm-camera﹕ mctl_init_stats_proc_info: snap_max_line_cnt =30096
11-04 12:28:18.213    6241-6241/? E/CamcorderProfile﹕ width: 720
11-04 12:28:18.213    6241-6241/? E/CamcorderProfile﹕ height: 480
11-04 12:28:18.213    6241-6241/? E/CamcorderProfile﹕ audioSampleRate: 48000
11-04 12:28:18.213    6241-6241/? E/CamcorderProfile﹕ videoBitRate: 5000000
11-04 12:28:18.213    6241-6241/? E/CamcorderProfile﹕ videoFrameRate: 30
11-04 12:28:18.233      175-617/? E/OMX-VENC-720p﹕ Is component secure 0
11-04 12:28:18.263    6241-6280/? E/ACodec﹕ [OMX.qcom.video.encoder.avc] does not support color format 19
11-04 12:28:18.263    6241-6280/? E/ACodec﹕ [OMX.qcom.video.encoder.avc] configureCodec returning error -2147483648
11-04 12:28:18.263    6241-6279/? E/MediaCodec﹕ Codec reported an error. (omx error 0x80001001, internalError -2147483648)
11-04 12:28:18.263    6241-6241/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.IllegalStateException
            at android.media.MediaCodec.native_configure(Native Method)
            at android.media.MediaCodec.configure(MediaCodec.java:259)
            at com.example.mediacodec.AvcEncoder.<init>(AvcEncoder.java:40)
            at com.example.mediacodec.Preview.surfaceCreated(MediaCodecActivity.java:304)
            at android.view.SurfaceView.updateWindow(SurfaceView.java:571)
            at android.view.SurfaceView.access$000(SurfaceView.java:86)
            at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:175)
            at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:833)
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1860)
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
            at android.view.Choreographer.doCallbacks(Choreographer.java:562)
            at android.view.Choreographer.doFrame(Choreographer.java:532)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
            at android.os.Handler.handleCallback(Handler.java:730)
            at android.os.Handler.dispatchMessage(Handler.java:92)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5103)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
            at dalvik.system.NativeStart.main(Native Method)
11-04 12:28:20.135      175-617/? E/mm-libcamera2﹕ PROFILE HAL: stopPreview(): E: 1383596900.149872429
11-04 12:28:20.135      175-575/? E/OMXNodeInstance﹕ !!! Observer died. Quickly, do something, ... anything...
11-04 12:28:20.135     208-6264/? E/mm-camera﹕ config_shutdown_pp Camera not in streaming mode. Returning.
11-04 12:28:20.145     208-6264/? E/mm-camera﹕ vfe_ops_deinit: E
11-04 12:28:20.165     175-6283/? E/OMX-VENC-720p﹕ ioctl VEN_IOCTL_CMD_READ_NEXT_MSG failed
11-04 12:28:20.165      175-575/? E/OMX-VENC-720p﹕ Destroy C2D instance
11-04 12:28:20.195      527-539/? E/qcom_sensors_hal﹕ hal_process_report_ind: Bad item quality: 11
4

1 回答 1

5 
E/ACodec﹕ [OMX.qcom.video.encoder.avc] does not support color format 19

看起来您正在尝试在 Qualcomm 设备上使用颜色格式 19（COLOR_FormatYUV420Planar，a/k/a I420）。在我的一台设备上进行的快速测试表明他们的编解码器需要颜色格式 21（COLOR_FormatYUV420SemiPlanar，a/k/a NV12）。

EncodeDecodeTest 源中的缓冲区到缓冲区测试显示了如何查询MediaCodecInfo适当的颜色格式。由于您从相机接收输入，因此您需要将预览格式设置为半平面布局 (NV21)，然后在将其交给 MediaCodec 之前进行U/V 交换。

如果您有 Android 4.3 或更高版本，则可以跳过所有格式体操并使用Surface预览输出。有关示例，请参阅CameraToMpegTest 源。

于 2013-11-05T00:12:40.437 回答