3

基本信息

targetSdkVersion 28

目标：课程的目标是在发送到我的服务器之前调整视频大小。

问题：应用程序仅在 API 29 上崩溃，无论是使用真实设备还是使用 AVD。例如，代码在Pixel 2 API 28上运行良好，但在Pixel 2 API 29上运行良好

源代码：我主要使用来自bigflake.com的示例代码。

错误信息（详细日志见下文）：

E/AndroidRuntime: FATAL EXCEPTION: Thread-20
    Process: com.myapp.myapp, PID: 9189
    android.media.MediaCodec$CodecException: Error 0xfffffff3
        at android.media.MediaCodec.native_queueInputBuffer(Native Method)
        at android.media.MediaCodec.queueInputBuffer(MediaCodec.java:2450)

我尝试过 的由于 的日志信息有限MediaCodec$CodecException，我尝试从 更改为 没有MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface成功MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Flexible。

日志将显示最后两个缓冲周期。我希望你会看到一些有价值的东西。

未在 *Pixel 2 API 29* 上运行的日志

D/VideoResolutionChanger: no audio encoder output buffer
D/VideoResolutionChanger: loop: V(true){extracted:49(done:false) decoded:45(done:false) encoded:43(done:false)} A(true){extracted:45(done:false) decoded:44(done:false) encoded:1(done:false) pending:-1} muxing:true(V:0,A:1)
D/VideoResolutionChanger: video decoder: returned input buffer: 3
    video extractor: returned buffer of size 31007
    video extractor: returned buffer for time 4448177
D/VideoResolutionChanger: audio decoder: returned input buffer: 1
    audio extractor: returned buffer of size 32
    audio extractor: returned buffer for time 900000
D/VideoResolutionChanger: video decoder: returned output buffer: 5
    video decoder: returned buffer of size 1382400
    video decoder: returned buffer for time 4132500
D/VideoResolutionChanger: output surface: await new image
D/VideoResolutionChanger: output surface: draw image
D/VideoResolutionChanger: input surface: swap buffers
D/VideoResolutionChanger: video encoder: notified of new frame
    audio decoder: returned output buffer: 0
    audio decoder: returned buffer of size 320
D/VideoResolutionChanger: audio decoder: returned buffer for time 880000
    audio decoder: output buffer is now pending: -1
    audio decoder: attempting to process pending buffer: 0
D/VideoResolutionChanger: audio encoder: returned input buffer: 0
    audio decoder: processing pending buffer: 0
    audio decoder: pending buffer of size 320
    audio decoder: pending buffer for time 880000
D/VideoResolutionChanger: should have added track before processing output true
    video encoder: returned output buffer: 0
    video encoder: returned buffer of size 8234
    video encoder: returned buffer for time 3954177
D/VideoResolutionChanger: no audio encoder output buffer
D/VideoResolutionChanger: loop: V(true){extracted:50(done:false) decoded:46(done:false) encoded:44(done:false)} A(true){extracted:46(done:false) decoded:45(done:false) encoded:1(done:false) pending:-1} muxing:true(V:0,A:1)
D/VideoResolutionChanger: video decoder: returned input buffer: 4
    video extractor: returned buffer of size 30897
    video extractor: returned buffer for time 4519077
D/VideoResolutionChanger: video extractor: EOS
D/VideoResolutionChanger: releasing extractor, decoder, encoder, and muxer
D/SurfaceUtils: disconnecting from surface 0xc94d8008, reason disconnectFromSurface
D/MPEG4Writer: Video track stopping. Stop source
    Video track source stopping
    Video track source stopped
I/MPEG4Writer: Received total/0-length (44/0) buffers and encoded 44 frames. - Video
W/MPEG4Writer: 0-duration samples found: 1
I/MPEG4Writer: Received total/0-length (1/0) buffers and encoded 1 frames. - Audio
    Audio track drift time: 0 us
D/MPEG4Writer: Video track stopped. Stop source
D/MPEG4Writer: Audio track stopping. Stop source
    Audio track source stopping
    Audio track source stopped
    Audio track stopped. Stop source
    Duration from tracks range is [241451, 3994621] us
    Stopping writer thread
D/MPEG4Writer: 0 chunks are written in the last batch
D/MPEG4Writer: Writer thread stopped
I/MPEG4Writer: Ajust the moov start time from 0 us -> 0 us
D/MPEG4Writer: Video track stopping. Stop source
D/MPEG4Writer: Audio track stopping. Stop source
E/AndroidRuntime: FATAL EXCEPTION: Thread-20
    Process: com.myapp.myname, PID: 9189
    android.media.MediaCodec$CodecException: Error 0xfffffff3
        at android.media.MediaCodec.native_queueInputBuffer(Native Method)
        at android.media.MediaCodec.queueInputBuffer(MediaCodec.java:2450)
        at com.myapp.myname.utils.VideoResolutionChanger.doExtractDecodeEditEncodeMux(VideoResolutionChanger.java:543)

在 *Pixel 2 API 28* 上工作的日志

D/VideoResolutionChanger: no audio encoder output buffer
    loop: V(true){extracted:39(done:true) decoded:39(done:true) encoded:39(done:true)} A(true){extracted:147(done:false) decoded:146(done:false) encoded:5(done:false) pending:-1} muxing:true(V:0,A:1)
    audio decoder: returned input buffer: 3
    audio extractor: returned buffer of size 32
    audio extractor: returned buffer for time 2940000
D/VideoResolutionChanger: audio decoder: returned output buffer: 2
    audio decoder: returned buffer of size 320
    audio decoder: returned buffer for time 2920000
    audio decoder: output buffer is now pending: -1
    audio decoder: attempting to process pending buffer: 2
    audio encoder: returned input buffer: 2
    audio decoder: processing pending buffer: 2
    audio decoder: pending buffer of size 320
    audio decoder: pending buffer for time 2920000
D/VideoResolutionChanger: no audio encoder output buffer
D/VideoResolutionChanger: loop: V(true){extracted:39(done:true) decoded:39(done:true) encoded:39(done:true)} A(true){extracted:148(done:false) decoded:147(done:false) encoded:5(done:false) pending:-1} muxing:true(V:0,A:1)
D/VideoResolutionChanger: audio decoder: returned input buffer: 0
    audio extractor: returned buffer of size -1
    audio extractor: returned buffer for time -1
    audio extractor: EOS
D/VideoResolutionChanger: audio decoder: returned output buffer: 3
    audio decoder: returned buffer of size 320
    audio decoder: returned buffer for time 2940000
    audio decoder: output buffer is now pending: -1
    audio decoder: attempting to process pending buffer: 3
D/VideoResolutionChanger: audio encoder: returned input buffer: 3
    audio decoder: processing pending buffer: 3
    audio decoder: pending buffer of size 320
    audio decoder: pending buffer for time 2940000
D/VideoResolutionChanger: no audio encoder output buffer
D/VideoResolutionChanger: loop: V(true){extracted:39(done:true) decoded:39(done:true) encoded:39(done:true)} A(true){extracted:149(done:true) decoded:148(done:false) encoded:5(done:false) pending:-1} muxing:true(V:0,A:1)
    audio decoder: returned output buffer: 0
    audio decoder: returned buffer of size 0
    audio decoder: returned buffer for time 2880000
    audio decoder: output buffer is now pending: -1
    audio decoder: attempting to process pending buffer: 0
D/VideoResolutionChanger: audio encoder: returned input buffer: 0
    audio decoder: processing pending buffer: 0
    audio decoder: pending buffer of size 0
    audio decoder: pending buffer for time 2880000
D/VideoResolutionChanger: audio decoder: EOS
D/VideoResolutionChanger: should have added track before processing outputtrue
    audio encoder: returned output buffer: 0
    audio encoder: returned buffer of size 761
    audio encoder: returned buffer for time 2801451
    audio encoder: EOS
    encoded and decoded video frame counts should match39 39
    decoded frame count should be less than extracted frame count39 39
D/VideoResolutionChanger: no frame should be pending -1 -1
    releasing extractor, decoder, encoder, and muxer
D/SurfaceUtils: disconnecting from surface 0xd8b50808, reason disconnectFromSurface
D/MPEG4Writer: Video track stopping. Stop source
I/MPEG4Writer: Received total/0-length (6/0) buffers and encoded 6 frames. - Audio
D/MPEG4Writer: Video track source stopping
I/MPEG4Writer: Audio track drift time: 0 us
D/MPEG4Writer: Video track source stopped
I/MPEG4Writer: Received total/0-length (38/0) buffers and encoded 38 frames. - Video
D/MPEG4Writer: Video track stopped. Stop source
D/MPEG4Writer: Audio track stopping. Stop source
    Audio track source stopping
    Audio track source stopped
    Audio track stopped. Stop source
    Duration from tracks range is [3060067, 3302540] us
    Stopping writer thread
D/MPEG4Writer: 0 chunks are written in the last batch
D/MPEG4Writer: Writer thread stopped
I/MPEG4Writer: Ajust the moov start time from 0 us -> 0 us
D/MPEG4Writer: Video track stopping. Stop source
D/MPEG4Writer: Audio track stopping. Stop source
4

3 回答 3

4

xxxxExtractor.advance()我认为正确的方法是在返回 false后让它进入另一个循环。

我修改了我的代码，只在返回xxxxExtractor.readSampleData返回的大小之后标记提取器完成-1。这样你就知道你发送到 queueInputBuffer 的缓冲区是空的。

所以：xxxxExtractorDone = !xxxxExtractor.advance();-> xxxxExtractorDone = !xxxxExtractor.advance() && size == -1;

于 2020-06-17T23:25:33.520 回答
2

我还使用了 Bigflake 代码并在 Android 10 (API 29) 中遇到了这个问题。

其他链接的问题很有帮助，但不要直接回答有关如何修改 Bigflake 代码的问题。花了几个小时后，这就是我想出的。

对于视频和音频，在 内doExtractDecodeEditEncodeMux，在哪里之前

                 xxxxxDecoder.queueInputBuffer(
                            decoderInputBufferIndex,
                            0,
                            0,
                            0,
                            MediaCodec.BUFFER_FLAG_END_OF_STREAM);

调用时，您要添加以下代码行，以确保您使用空缓冲区来发送 EOS。

                    // wait forever for a new buffer
                    decoderInputBufferIndex = xxxxxDecoder.dequeueInputBuffer(-1);

有两个这样的实例，生成的视频代码如下所示，并给出了大部分上下文：

                videoExtractorDone = !videoExtractor.advance();
                if (videoExtractorDone) {
                    if (VERBOSE) {
                        final String log = "Video extractor: EOS";
                        Log.d(TAG, log);
                        emitLog(log);
                    }
                    Log.i(TAG, "WAITING indefinitely until an input video buffer for EOS is available");
                    // wait forever for a new buffer
                    decoderInputBufferIndex = videoDecoder.dequeueInputBuffer(-1); // this is the actually important line
                    videoDecoder.queueInputBuffer(
                            decoderInputBufferIndex,
                            0,
                            0,
                            0,
                            MediaCodec.BUFFER_FLAG_END_OF_STREAM);
                            Log.i(TAG, "Successfully sent video EOS");
                }

希望这可以帮助其他人遇到这个问题。

于 2020-03-06T21:27:22.877 回答
1

我遇到了同样的问题，终于解决了。我使用了asynctaskMode和编解码器回调。

while (!mAudioExtractorDone) {
                    int size = mAudioExtractor.readSampleData(decoderInputBuffer, 0);
                    long presentationTime = mAudioExtractor.getSampleTime();
                    MLog.i(TAG, "audio extractor: ronInputBufferAvailable() presentationTime = " + presentationTime);
                    if (size >= 0) {
                        codec.queueInputBuffer(index, 0, size, presentationTime, mAudioExtractor.getSampleFlags());
                    }else {
                        Log.e(TAG, "onInputBufferAvailable: " + "size < 0 = " + size);
                        codec.queueInputBuffer(index, 0, 0, 0L, MediaCodec.BUFFER_FLAG_END_OF_STREAM);
                        mAudioExtractorDone = true;
                    }
                    mAudioExtractor.advance();
                    mAudioExtractedFrameCount++;
                    logState();

BUFFER_FLAG_END_OF_STREAM当大小小于零时发送。注意循环的标记位 ( mAudioExtractorDone)。

于 2020-06-11T01:24:12.617 回答