Android MediaCodec在解码过程中崩溃

我试图播放视频从H264流来自vlc的udp

但到目前为止还没有取得任何成功。 我引用了这个示例encodecodetest.java，但仍然不起作用

发生异常之前的详细信息

    E/VDO_LOG: [Vdec_Drv_H264_open] VAL_CHIP_NAME_MT6752, VAL_CHIP_NAME_MT6582, VAL_CHIP_NAME_MT8135, VAL_CHIP_NAME_MT6592, VAL_CHIP_NAME_MT8127, VAL_CHIP_NAME_ROME
    E/VDO_LOG: [Err] invalid NALU - 1 18 47 170 90!!
     E/VDO_LOG: [Err] invalid NALU - 1 224 2 10 128!!
     E/VDO_LOG: [Err] invalid NALU - 1 234 107 24 1!!
     E/VDO_LOG: [Err, h264_dec_init] Fail to open Vdec Drv H264 instance! -11
     E/VDO_LOG: [Err] Error code -10
     E/MtkOmxVdec: [0xb7a47e38] Error!! Cannot init driver
     E/VDO_LOG: [Err, h264_dec_deInit] Invalid input argument
     E/M4U_L: ~MTKM4UDrv 66.
     E/VDO_LOG: [eHalEMICtrl]Profile_Change(BWCPT_VIDEO_PLAYBACK, false)
    [BWC INFO](29451): get_bwc_mm_property success
    [BWC INFO](29451): BWC_SETTING::DumpInfo-------
     [BWC INFO](29451):          sensor_size =      0 x      0
     [BWC INFO](29451):              vr_size =    320 x    560
    [BWC INFO](29451):            disp_size =      0 x      0
     [BWC INFO](29451):              tv_size =      0 x      0
    [BWC INFO](29451):                  fps =      0
    [BWC INFO](29451):      venc_codec_type =      0
   [BWC INFO](29451):      vdec_codec_type =      2
     [BWC INFO](29451): ----------------------------
    [BWC INFO](29451): Read DDR type string:LPDDR3
   [BWC INFO](29451): DDR Type = 2
     [BWC INFO](29451): smi_bw_ctrl_set: scen 2, turn off
     [BWC INFO](29451): emi_bw_ctrl_set: CON_SCE_VP OFF
    [BWC INFO](29451): set_bwc_mm_property: propterty_id=0, value1=0, value2=0
     [BWC INFO](29451): Profile_Change:[BWCPT_VIDEO_PLAYBACK]:OFF,current concurrency is 0x0

例外情况

     E/VDO_LOG: [eValDeInit] close VCodec_ValFd, VCodec_ValFd = -1
     E/VDO_LOG: [ERROR] fail to open mcdi_file
     E/MtkOmxVdec: [0xb7a47e38] InitVideoDecodeHW failed
     E/MtkOmxVdec: [0xb7a47e38] something wrong when decoding....
     E/ACodec: [OMX.MTK.VIDEO.DECODER.AVC] ERROR(0x80001005)
     E/ACodec: signalError(omxError 0x80001005, internalError -2147483648)
     E/MediaCodec: Codec reported err 0xfffffbb1, actionCode 0, while in state 6
     E/AndroidRuntime: FATAL EXCEPTION: Thread-2966
    Process: com.rvale.videocodec, PID: 29410
    java.lang.IllegalStateException
         at android.media.MediaCodec.native_dequeueOutputBuffer(Native Method)
         at android.media.MediaCodec.dequeueOutputBuffer(MediaCodec.java:1041)
         at com.rvale.videocodec.VideoPlayer$MediaCodecThread.run(VideoPlayer.java:432)

媒体编解码器配置

try {
            mediaCodec = MediaCodec.createDecoderByType("video/avc");
        } catch (IOException e) {
            e.printStackTrace();
        }

        mediaFormat=MediaFormat.createVideoFormat("video/avc", 464,290);//new MediaFormat();


         mediaFormat.setInteger(MediaFormat.KEY_FRAME_RATE,23);
        MediaCodecInfo mediaCodecInfo=selectCodec(MediaFormat.MIMETYPE_VIDEO_AVC);
        int colorFormat = selectColorFormat(mediaCodecInfo, MediaFormat.MIMETYPE_VIDEO_AVC);
       //mediaFormat.setInteger(MediaFormat.KEY_COLOR_FORMAT,colorFormat);
        info = new MediaCodec.BufferInfo();
        assert mediaCodec != null;
        mediaCodec.configure(mediaFormat,getHolder().getSurface(),null,0);

这就是我如何馈送到解码器，添加NAL Start，如本文所述

德奎缓冲区

MediaCodec.BufferInfo bufferInfo=new MediaCodec.BufferInfo();
        while(decoding)
        {
            bufferInfo.presentationTimeUs+=1;
            int outputBufferId = mediaCodec.dequeueOutputBuffer(bufferInfo,-1);
            if (outputBufferId >= 0) {
                ByteBuffer outputBuffer = mediaCodec.getOutputBuffer(outputBufferId);
                 mediaCodec.releaseOutputBuffer(outputBufferId, true);

            } else if (outputBufferId == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
                // Subsequent data will conform to new format.
                // Can ignore if using getOutputFormat(outputBufferId)
            }
        }

PS：我尝试在线解码数据包，并成功地将其提取出来，在将其发送给解码器之前，我正在删除前28个字节

为什么会发生此异常以及如何解决它

解码初始阶段的图像

---

异常是立即发生还是在解码一段时间后发生？首先，我看不出你在哪里打电话。我认为非法状态异常通常发生在编解码器停止或配置不正确的情况下。解码后会发生一些情况，我在上面调用了MediaCodec.start in run方法while loop，它第一次呈现绿色屏幕，然后崩溃。他们找到了解决方案吗？？

MediaCodec.BufferInfo bufferInfo=new MediaCodec.BufferInfo();
        while(decoding)
        {
            bufferInfo.presentationTimeUs+=1;
            int outputBufferId = mediaCodec.dequeueOutputBuffer(bufferInfo,-1);
            if (outputBufferId >= 0) {
                ByteBuffer outputBuffer = mediaCodec.getOutputBuffer(outputBufferId);
                 mediaCodec.releaseOutputBuffer(outputBufferId, true);

            } else if (outputBufferId == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
                // Subsequent data will conform to new format.
                // Can ignore if using getOutputFormat(outputBufferId)
            }
        }