public void decode(byte[] array)
{
if (bConfigured == false)
{
Init();
}
var nalType = array[4] & 0x1f;
if (nalType == 7)
{
//sps = array.ToArray();
if (array.Length != sps.Length)
{
stop();
sps = array.ToArray();
Init();
}
return;
}
if (nalType == 8)
{
//pps = array.ToArray();
return;
}
if (bConfigured == false)
{
return;
}
if (bConfigured)
{
try
{
ByteBuffer[] inputBuffers = codec.GetInputBuffers();
ByteBuffer[] outputBuffers = codec.GetOutputBuffers();
int dequeueInputBuffer = codec.DequeueInputBuffer(-1L);
if (dequeueInputBuffer >= 0)
{
//Send data to decoder.
ByteBuffer byteBuffer = inputBuffers[dequeueInputBuffer];
byteBuffer.Clear();
byteBuffer.Put(array);
codec.QueueInputBuffer(dequeueInputBuffer, 0, array.Length, 0L, 0);
}
//Show decoded frame
MediaCodec.BufferInfo BufferInfo = new MediaCodec.BufferInfo();
int i = codec.DequeueOutputBuffer(BufferInfo, 0L);
while (i >= 0)
{
/*if (picSurface == null)//Only if not using display surface.
{
ByteBuffer byteBuffer2 = outputBuffers[i];
if (buffer == null || buffer.Length != BufferInfo.Size)
{
buffer = new byte[BufferInfo.Size];
}
byteBuffer2.Get(buffer);
//do something with raw frame in buffer.
}*/
codec.ReleaseOutputBuffer(i, true);
codec.SetVideoScalingMode(VideoScalingMode.ScaleToFit);
i = codec.DequeueOutputBuffer(BufferInfo, 0L);
}
}
catch (Exception ex)
{
//attempt to recover.
stop();
}
}
return;// ret;
}
public static Result DecodeAudio(FileDescriptor descriptor, long offset, long length)
{
using (var extractor = new MediaExtractor())
{
extractor.SetDataSource(descriptor, offset, length);
MediaFormat format = null;
string mime = null;
for (int i = 0; i < extractor.TrackCount; i++)
{
format = extractor.GetTrackFormat(i);
mime = format.GetString(MediaFormat.KeyMime);
if (!mime.StartsWith("audio/"))
{
continue;
}
extractor.SelectTrack(i);
}
if (format == null || !mime.StartsWith("audio/"))
{
throw new ContentLoadException("Could not find any audio track.");
}
int sampleRate = format.GetInteger(MediaFormat.KeySampleRate);
long duration = format.GetLong(MediaFormat.KeyDuration);
int channels = format.GetInteger(MediaFormat.KeyChannelCount);
int samples = (int)(sampleRate * duration / 1000000d);
var output = new byte[samples * 2];
int timeoutsLeft = 1000;
var decoder = MediaCodecPool.RentDecoder(mime);
try
{
decoder.Configure(format, null, null, MediaCodecConfigFlags.None);
decoder.Start();
ByteBuffer[] inputBuffers = decoder.GetInputBuffers();
ByteBuffer[] outputBuffers = decoder.GetOutputBuffers();
var bufferInfo = new MediaCodec.BufferInfo();
int totalOffset = 0;
bool endOfStream = false;
while (true)
{
// we dont need to have a endOfStream local,
// but it saves us a few calls to the decoder
if (!endOfStream)
{
int inputBufIndex = decoder.DequeueInputBuffer(5000);
if (inputBufIndex >= 0)
{
int size = extractor.ReadSampleData(inputBuffers[inputBufIndex], 0);
if (size > 0)
{
decoder.QueueInputBuffer(
inputBufIndex, 0, size, extractor.SampleTime, MediaCodecBufferFlags.None);
}
if (!extractor.Advance())
{
endOfStream = true;
decoder.QueueInputBuffer(
inputBufIndex, 0, 0, 0, MediaCodecBufferFlags.EndOfStream);
}
}
}
int decoderStatus = decoder.DequeueOutputBuffer(bufferInfo, 5000);
if (decoderStatus >= 0)
{
IntPtr bufferPtr = outputBuffers[decoderStatus].GetDirectBufferAddress();
IntPtr offsetPtr = bufferPtr + bufferInfo.Offset;
int size = bufferInfo.Size;
Marshal.Copy(offsetPtr, output, totalOffset, size);
decoder.ReleaseOutputBuffer(decoderStatus, render: false);
totalOffset += size;
if (bufferInfo.Flags == MediaCodecBufferFlags.EndOfStream)
{
if (totalOffset != output.Length)
{
throw new ContentLoadException(
"Reached end of stream before reading expected amount of samples.");
}
break;
}
}
else if (decoderStatus == (int)MediaCodecInfoState.OutputBuffersChanged)
{
outputBuffers = decoder.GetOutputBuffers();
}
else if (decoderStatus == (int)MediaCodecInfoState.TryAgainLater)
{
if (timeoutsLeft-- <= 0)
{
break;
}
}
}
}
finally
{
decoder.Stop();
MediaCodecPool.ReturnDecoder(mime, decoder);
}
if (timeoutsLeft <= 0)
{
throw new ContentLoadException("Could not load sound effect in designated time frame.");
}
return(new Result(output, sampleRate, channels, mime));
}
}
public override void OnOutputBufferAvailable(MediaCodec codec, int index, MediaCodec.BufferInfo info)
{
//var buffer = codec.GetOutputBuffer(index);
//Console.WriteLine("OnOutputBufferAvailable");
codec.ReleaseOutputBuffer(index, true);
}
private void DrainEncoder(MediaCodec encoder, MediaCodec.BufferInfo bufferInfo, int trackIndex, bool endOfStream)
{
Debug.WriteLine($"DrainEncoder {endOfStream})");
const int TIMEOUT_USEC = 10000;
if (endOfStream)
{
Debug.WriteLine("Sending EOS to encoder");
encoder.SignalEndOfInputStream();
}
ByteBuffer[] encoderOutputBuffers = encoder.GetOutputBuffers();
while (true)
{
int encoderStatus = encoder.DequeueOutputBuffer(bufferInfo, TIMEOUT_USEC);
if (encoderStatus == (int)MediaCodecInfoState.TryAgainLater)
{
// no output available yet
if (!endOfStream)
{
break; // out of while
}
else
{
Debug.WriteLine("No output available, spinning to await EOS");
}
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputBuffersChanged)
{
encoderOutputBuffers = encoder.GetOutputBuffers();
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputFormatChanged)
{
Debug.Assert(!muxerStarted);
MediaFormat newFormat = encoder.OutputFormat;
Debug.WriteLine($"Encoder output format changed: {newFormat}");
var isVideo = encoder == videoEncoder;
if (isVideo)
{
videoTrackIndex = muxer.AddTrack(newFormat);
trackIndex = videoTrackIndex;
}
else
{
audioTrackIndex = muxer.AddTrack(newFormat);
trackIndex = audioTrackIndex;
}
// now that we have the Magic Goodies, start the muxer
if (videoTrackIndex >= 0 && audioTrackIndex >= 0)
{
muxer.Start();
muxerStarted = true;
muxerStartEvent.Set();
}
}
else if (encoderStatus < 0)
{
Debug.WriteLine($"Unexpected result from encoder.dequeueOutputBuffer: {encoderStatus}");
}
else
{
ByteBuffer encodedData = encoderOutputBuffers[encoderStatus];
Debug.Assert(encodedData != null);
if ((bufferInfo.Flags & MediaCodecBufferFlags.CodecConfig) != 0)
{
Debug.WriteLine("Ignoring BUFFER_FLAG_CODEC_CONFIG");
bufferInfo.Size = 0;
}
if (bufferInfo.Size != 0)
{
muxerStartEvent.WaitOne();
encodedData.Position(bufferInfo.Offset);
encodedData.Limit(bufferInfo.Offset + bufferInfo.Size);
muxer.WriteSampleData(trackIndex, encodedData, bufferInfo);
Debug.WriteLine($"Sent {bufferInfo.Size} bytes to muxer");
}
encoder.ReleaseOutputBuffer(encoderStatus, false);
if ((bufferInfo.Flags & MediaCodecBufferFlags.EndOfStream) != 0)
{
if (!endOfStream)
{
Debug.WriteLine("Reached end of stream unexpectedly");
}
else
{
Debug.WriteLine("End of stream reached");
}
break;
}
}
}
}
// https://github.com/lanhq147/SampleMediaFrame/blob/e2f20ff9eef73318e5a9b4de15458c5c2eb0fd46/app/src/main/java/com/google/android/exoplayer2/video/av/HWRecorder.java
public bool BeginEncoding(int resX, int resY, int rateNumer, int rateDenom, int videoBitRate, int audioBitRate, string audioFile, string outputFile)
{
videoBufferInfo = new MediaCodec.BufferInfo();
audioBufferInfo = new MediaCodec.BufferInfo();
frameRateNumer = rateNumer;
frameRateDenom = rateDenom;
MediaFormat videoFormat = MediaFormat.CreateVideoFormat(VideoMimeType, resX, resY);
videoFormat.SetInteger(MediaFormat.KeyColorFormat, (int)MediaCodecCapabilities.Formatsurface);
videoFormat.SetInteger(MediaFormat.KeyBitRate, videoBitRate * 1000);
videoFormat.SetFloat(MediaFormat.KeyFrameRate, rateNumer / (float)rateDenom);
videoFormat.SetInteger(MediaFormat.KeyIFrameInterval, 4);
videoFormat.SetInteger(MediaFormat.KeyProfile, (int)MediaCodecProfileType.Avcprofilehigh);
videoFormat.SetInteger(MediaFormat.KeyLevel, (int)MediaCodecProfileLevel.Avclevel31);
videoEncoder = MediaCodec.CreateEncoderByType(VideoMimeType);
videoEncoder.Configure(videoFormat, null, null, MediaCodecConfigFlags.Encode);
surface = videoEncoder.CreateInputSurface();
videoEncoder.Start();
MediaFormat audioFormat = MediaFormat.CreateAudioFormat(AudioMimeType, 44100, 1);
audioFormat.SetInteger(MediaFormat.KeyAacProfile, (int)MediaCodecProfileType.Aacobjectlc);
audioFormat.SetInteger(MediaFormat.KeyBitRate, audioBitRate * 1000);
audioEncoder = MediaCodec.CreateEncoderByType(AudioMimeType);
audioEncoder.Configure(audioFormat, null, null, MediaCodecConfigFlags.Encode);
audioEncoder.Start();
try
{
muxer = new MediaMuxer(outputFile, MuxerOutputType.Mpeg4);
}
catch
{
return(false);
}
videoTrackIndex = -1;
audioTrackIndex = -1;
muxerStarted = false;
if (!ElgInitialize())
{
return(false);
}
audioData = File.ReadAllBytes(audioFile);
if (audioData == null)
{
return(false);
}
DrainEncoder(videoEncoder, videoBufferInfo, videoTrackIndex, false);
DrainEncoder(audioEncoder, audioBufferInfo, audioTrackIndex, false);
audioEncodingTask = Task.Factory.StartNew(AudioEncodeThread, TaskCreationOptions.LongRunning);
return(true);
}
/// <summary>
/// if both inputPath string and inputUri are not null, this
/// method will use the Uri. Else, set one or the other
///
/// They cannot both be null
/// </summary>
/// <param name="startMs">the start ms for trimming</param>
/// <param name="endMs">the final ms for trimming</param>
/// <param name="inputPath">optional input path string</param>
/// <param name="muxer">the muxer to use for writing bytes</param>
/// <param name="trackIndexOverride">the track index for muxer read/write to</param>
/// <param name="bufferInfo">an input bufferinfo to get properties from</param>
/// <param name="outputPath">the output path for method to check after finished encoding</param>
/// <param name="ptOffset">the presentation time offset for audio, used in syncing audio and video</param>
/// <param name="inputUri">optional inputUri to read from</param>
/// <returns></returns>
public async Task <string> HybridMuxingTrimmer(int startMs, int endMs, string inputPath, MediaMuxer muxer, int trackIndexOverride = -1, BufferInfo bufferInfo = null, string outputPath = null, long ptOffset = 0, Android.Net.Uri inputUri = null)
{
var tio = trackIndexOverride;
await Task.Run(() =>
{
if (outputPath == null)
{
outputPath = FileToMp4.LatestOutputPath;
}
MediaExtractor ext = new MediaExtractor();
if (inputUri != null)
{
ext.SetDataSource(Android.App.Application.Context, inputUri, null);
}
else
{
ext.SetDataSource(inputPath);
}
int trackCount = ext.TrackCount;
Dictionary <int, int> indexDict = new Dictionary <int, int>(trackCount);
int bufferSize = -1;
for (int i = 0; i < trackCount; i++)
{
MediaFormat format = ext.GetTrackFormat(i);
string mime = format.GetString(MediaFormat.KeyMime);
bool selectCurrentTrack = false;
if (mime.StartsWith("audio/"))
{
selectCurrentTrack = true;
}
else if (mime.StartsWith("video/"))
{
selectCurrentTrack = false;
} /*rerouted to gl video encoder*/
if (selectCurrentTrack)
{
ext.SelectTrack(i);
if (tio != -1)
{
indexDict.Add(i, i);
}
if (format.ContainsKey(MediaFormat.KeyMaxInputSize))
{
int newSize = format.GetInteger(MediaFormat.KeyMaxInputSize);
bufferSize = newSize > bufferSize ? newSize : bufferSize;
}
}
}
MediaMetadataRetriever retrieverSrc = new MediaMetadataRetriever();
if (!System.String.IsNullOrWhiteSpace(inputPath))
{
retrieverSrc.SetDataSource(inputPath);
}
else
{
retrieverSrc.SetDataSource(Android.App.Application.Context, inputUri);
}
string degreesString = retrieverSrc.ExtractMetadata(MetadataKey.VideoRotation);
if (degreesString != null) // unused ATM but will be useful for stabilized videoview in streaming
{
int degrees = int.Parse(degreesString);
if (degrees >= 0) /* muxer.SetOrientationHint(degrees); */ } {
//muxer won't accept this param once started
}
if (startMs > 0)
{
ext.SeekTo(startMs * 1000, MediaExtractorSeekTo.ClosestSync);
}
int offset = 0;
if (bufferInfo == null)
{
bufferInfo = new MediaCodec.BufferInfo();
}
ByteBuffer dstBuf = ByteBuffer.Allocate(bufferSize);
long us = endMs * 1000;
long uo = us + ptOffset;
int cf = 0;
try
{
FileToMp4.AudioEncodingInProgress = true;
while (true)
{
bufferInfo.Offset = offset;
bufferInfo.Size = ext.ReadSampleData(dstBuf, offset);
if (bufferInfo.Size < 0)
{
bufferInfo.Size = 0; break;
}
else
{
cf++;
bufferInfo.PresentationTimeUs = ext.SampleTime + ptOffset;
if (ext.SampleTime >= us)
{
break;
} //out of while
else
{
bufferInfo.Flags = MFlags2MCodecBuff(ext.SampleFlags);
if (tio == -1)
{
muxer.WriteSampleData(FileToMp4.LatestAudioTrackIndex, dstBuf, bufferInfo);
}
else
{
muxer.WriteSampleData(tio, dstBuf, bufferInfo);
}
if (cf >= 240) //only send the muxer eventargs once every x frames to reduce CPU load
{
Notify(ext.SampleTime, us);
cf = 0;
}
}
ext.Advance();
}
}
}
catch (Java.Lang.IllegalStateException e)
{
this.Progress.Invoke(new MuxerEventArgs(ext.SampleTime, us, null, true, true));
Console.WriteLine("The source video file is malformed");
}
catch (Java.Lang.Exception ex)
{
this.Progress.Invoke(new MuxerEventArgs(ext.SampleTime, us, null, true, true));
Console.WriteLine(ex.Message);
}
if (AppSettings.Logging.SendToConsole)
{
System.Console.WriteLine($"DrainEncoder audio finished @ {bufferInfo.PresentationTimeUs}");
}
});
FileToMp4.AudioEncodingInProgress = false;
try
{
if (!FileToMp4.VideoEncodingInProgress)
{
muxer.Stop();
muxer.Release();
muxer = null;
}
}
catch (Java.Lang.Exception ex) { Log.Debug("MuxingEncoder", ex.Message); }
if (outputPath != null)
{
var success = System.IO.File.Exists(outputPath);
if (success)
{
this.Progress.Invoke(new MuxerEventArgs(endMs * 1000, endMs, outputPath, true));
return(outputPath);
}
}
return(null); //nothing to look for
}
private bool ExtractSomeAudioData(out bool endOfFile)
{
endOfFile = extractionOutputDone;
if (endOfFile)
{
return(false);
}
var hasExtractedData = false;
int TimeoutUs = 20000;
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
if (!extractionInputDone)
{
int inputBufIndex = audioMediaDecoder.DequeueInputBuffer(TimeoutUs);
if (inputBufIndex >= 0)
{
Java.Nio.ByteBuffer inputBuffer = audioMediaDecoder.GetInputBuffer(inputBufIndex);
//Read the sample data into the ByteBuffer. This neither respects nor updates inputBuf's position, limit, etc.
int chunkSize = audioMediaExtractor.ReadSampleData(inputBuffer, 0);
if (chunkSize < 0)
{
//End of stream: send empty frame with EOS flag set
audioMediaDecoder.QueueInputBuffer(inputBufIndex, 0, 0, 0L, MediaCodecBufferFlags.EndOfStream);
extractionInputDone = true;
//Logger.Verbose("sent input EOS");
}
else
{
if (audioMediaExtractor.SampleTrackIndex != trackIndexAudio)
{
Logger.Warning(string.Format("got audio sample from track {0}, expected {1}", audioMediaExtractor.SampleTrackIndex, trackIndexAudio));
}
var presentationTimeMicroSeconds = audioMediaExtractor.SampleTime;
audioMediaDecoder.QueueInputBuffer(inputBufIndex, 0, chunkSize, presentationTimeMicroSeconds, 0);
audioMediaExtractor.Advance();
}
}
else
{
//do nothing: the input buffer queue is full (we need to output them first)
//continue;
}
}
int decoderStatus = audioMediaDecoder.DequeueOutputBuffer(info, TimeoutUs);
switch (decoderStatus)
{
case (int)MediaCodecInfoState.TryAgainLater:
{
Logger.Verbose("no output from decoder available");
break;
}
case (int)MediaCodecInfoState.OutputFormatChanged:
{
MediaFormat newFormat = audioMediaDecoder.OutputFormat;
string newFormatStr = newFormat.ToString();
Logger.Verbose("audio decoder output format changed: " + newFormatStr);
break;
}
case (int)MediaCodecInfoState.OutputBuffersChanged:
{
//deprecated: we just ignore it
break;
}
default:
{
if (decoderStatus < 0)
{
throw new InvalidOperationException(string.Format("unexpected result from audio decoder.DequeueOutputBuffer: {0}", decoderStatus));
}
if ((info.Flags & MediaCodecBufferFlags.EndOfStream) != 0)
{
Logger.Verbose("audio: output EOS");
extractionOutputDone = true;
}
if (info.Size > 0)
{
hasExtractedData = true;
var buffer = audioMediaDecoder.GetOutputBuffer(decoderStatus);
var presentationTime = TimeSpanExtensions.FromMicroSeconds(info.PresentationTimeUs);
if (storageBuffer.CountDataBytes + info.Size <= storageBuffer.Data.Length)
{
buffer.Get(storageBuffer.Data, storageBuffer.CountDataBytes, info.Size); // Read the buffer all at once
buffer.Clear(); // MUST DO!!! OTHERWISE THE NEXT TIME YOU GET THIS SAME BUFFER BAD THINGS WILL HAPPEN
buffer.Position(0);
if (storageBuffer.CountDataBytes == 0)
{
storageBuffer.PresentationTime = presentationTime;
}
storageBuffer.CountDataBytes += info.Size;
}
else
{
Logger.Error("The storage buffer has reached full capacity. Current data will be dropped");
}
}
audioMediaDecoder.ReleaseOutputBuffer(decoderStatus, false);
break;
}
}
endOfFile = extractionOutputDone;
return(hasExtractedData);
}
public Task <bool> TrimAsync(int startMS, int lengthMS, string inputPath, string outputPath)
{
return(Task.Run <bool>(() =>
{
try
{
bool didOperationSucceed = false;
MediaExtractor extractor = new MediaExtractor();
extractor.SetDataSource(inputPath);
int trackCount = extractor.TrackCount;
// Set up MediaMuxer for the destination.
MediaMuxer muxer;
muxer = new MediaMuxer(outputPath, MuxerOutputType.Mpeg4);
// Set up the tracks and retrieve the max buffer size for selected
// tracks.
Dictionary <int, int> indexDict = new Dictionary <int, int>(trackCount);
int bufferSize = -1;
for (int i = 0; i < trackCount; i++)
{
MediaFormat format = extractor.GetTrackFormat(i);
string mime = format.GetString(MediaFormat.KeyMime);
bool selectCurrentTrack = false;
if (mime.StartsWith("audio/"))
{
selectCurrentTrack = true;
}
else if (mime.StartsWith("video/"))
{
selectCurrentTrack = true;
}
if (selectCurrentTrack)
{
extractor.SelectTrack(i);
int dstIndex = muxer.AddTrack(format);
indexDict.Add(i, dstIndex);
if (format.ContainsKey(MediaFormat.KeyMaxInputSize))
{
int newSize = format.GetInteger(MediaFormat.KeyMaxInputSize);
bufferSize = newSize > bufferSize ? newSize : bufferSize;
}
}
}
if (bufferSize < 0)
{
bufferSize = 1337; //TODO: I don't know what to put here tbh, it will most likely be above 0 at this point anyways :)
}
// Set up the orientation and starting time for extractor.
MediaMetadataRetriever retrieverSrc = new MediaMetadataRetriever();
retrieverSrc.SetDataSource(inputPath);
string degreesString = retrieverSrc.ExtractMetadata(MetadataKey.VideoRotation);
if (degreesString != null)
{
int degrees = int.Parse(degreesString);
if (degrees >= 0)
{
muxer.SetOrientationHint(degrees);
}
}
if (startMS > 0)
{
extractor.SeekTo(startMS * 1000, MediaExtractorSeekTo.ClosestSync);
}
// Copy the samples from MediaExtractor to MediaMuxer. We will loop
// for copying each sample and stop when we get to the end of the source
// file or exceed the end time of the trimming.
int offset = 0;
int trackIndex = -1;
ByteBuffer dstBuf = ByteBuffer.Allocate(bufferSize);
MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo();
try
{
muxer.Start();
while (true)
{
bufferInfo.Offset = offset;
bufferInfo.Size = extractor.ReadSampleData(dstBuf, offset);
if (bufferInfo.Size < 0)
{
bufferInfo.Size = 0;
break;
}
else
{
bufferInfo.PresentationTimeUs = extractor.SampleTime;
if (lengthMS > 0 && bufferInfo.PresentationTimeUs > ((startMS + lengthMS - 1) * 1000))
{
Console.WriteLine("The current sample is over the trim end time.");
break;
}
else
{
bufferInfo.Flags = ConvertMediaExtractorSampleFlagsToMediaCodecBufferFlags(extractor.SampleFlags);
trackIndex = extractor.SampleTrackIndex;
muxer.WriteSampleData(indexDict[trackIndex], dstBuf, bufferInfo);
extractor.Advance();
}
}
}
muxer.Stop();
didOperationSucceed = true;
//deleting the old file
//JFile file = new JFile(srcPath);
//file.Delete();
}
catch (IllegalStateException e)
{
// Swallow the exception due to malformed source.
Console.WriteLine("The source video file is malformed");
}
finally
{
muxer.Release();
}
return didOperationSucceed;
}
catch (System.Exception xx)
{
return false;
}
}));
// Set up MediaExtractor to read from the source.
}
private string EncodeFileToMp4(string inputPath, string outputPath, bool encodeAudio = true, Android.Net.Uri inputUri = null)
{
LatestInputVideoLength = AudioEncoding.GetVideoLength(inputPath, inputUri);
LatestAudioInputFormat = AudioEncoding.GetAudioTrackFormat(inputPath, inputUri);
EstimateTotalSize(LatestInputVideoLength, _bitRate);
try
{
prepareMediaPlayer(inputPath, inputUri);
prepareEncoder(outputPath);
_inputSurface.MakeCurrent();
prepareWeakSurfaceTexture();
_mediaPlayer.Start();
_mediaPlayer.SetAudioStreamType(Android.Media.Stream.VoiceCall);
_mediaPlayer.SetVolume(0, 0);
_frameCount = 0;
}
catch (System.Exception ex) { Log.Debug("VideoEncoder", ex.Message); }
VideoEncodingInProgress = true;
while (true)
{
D(false);
_frameCount++;
/*
* Disable this to make it faster when not debugging
*/
#if DEBUG
if (_frameCount >= 120 && AppSettings.Logging.SendToConsole)
{
System.Console.WriteLine($"FileToMp4 exited @ {_outputSurface.WeakSurfaceTexture.Timestamp} " +
$" | encoded bits {_bitsEncodedSoFar} of estimated {_estimatedTotalSize}");
}
#endif
// Acquire a new frame of input, and render it to the Surface. If we had a
// GLSurfaceView we could switch EGL contexts and call drawImage() a second
// time to render it on screen. The texture can be shared between contexts by
// passing the GLSurfaceView's EGLContext as eglCreateContext()'s share_context
// argument.
if (!_outputSurface.AwaitNewImage(true))
{
break;
}
_outputSurface.DrawImage();
// Set the presentation time stamp from the WeakSurfaceTexture's time stamp. This
// will be used by MediaMuxer to set the PTS in the video.
_inputSurface.SetPresentationTime(_outputSurface.WeakSurfaceTexture.Timestamp);
//if (AppSettings.Logging.SendToConsole) Log.Debug("MediaLoop", "Set Time " + st.Timestamp);
// Submit it to the encoder. The eglSwapBuffers call will block if the input
// is full, which would be bad if it stayed full until we dequeued an output
// buffer (which we can't do, since we're stuck here). So long as we fully drain
// the encoder before supplying additional input, the system guarantees that we
// can supply another frame without blocking.
//if (AppSettings.Logging.SendToConsole) Log.Debug(TAG, "sending frame to encoder:");
_inputSurface.SwapBuffers();
if (_bitsEncodedSoFar >= _estimatedTotalSize)
{
break;
}
}
D(true);
VideoEncodingInProgress = false;
#if DEBUG
if (AppSettings.Logging.SendToConsole)
{
System.Console.WriteLine($"DrainEncoder started @ {_firstKnownBuffer} exited @ " +
$"{_outputSurface.WeakSurfaceTexture.Timestamp} " +
$"| encoded bits {_bitsEncodedSoFar} of estimated {_estimatedTotalSize}");
}
#endif
try
{
releaseMediaPlayer();
releaseEncoder();
releaseWeakSurfaceTexture();
}catch { }
_firstKnownBuffer = 0;
_estimatedTotalSize = 0;
_frameCount = 0;
_bitsEncodedSoFar = 0;
_bfi = new BufferInfo();
if (!AudioEncodingInProgress)
{
_muxer.Stop(); // if the audio encoding isn't still running then we'll stop everything and return
_muxer.Release();
_muxer = null;
if (File.Exists(outputPath))
{
this.Progress.Invoke(new EncoderMinArgs(EncodedBits(_bfi.Size), _estimatedTotalSize, true, false, outputPath));
return(outputPath);
}
}
this.Progress.Invoke(new EncoderMinArgs(EncodedBits(_bfi.Size), _estimatedTotalSize, false, false, null));
return(null); //file isn't finished processing yet
}
private void ResampleVideo(MediaExtractor extractor, MediaCodec decoder, SamplerClip clip)
{
ByteBuffer[] decoderInputBuffers = decoder.GetInputBuffers();
ByteBuffer[] encoderOutputBuffers = mEncoder.GetOutputBuffers();
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
int inputChunk = 0;
int outputCount = 0;
long endTime = clip.getEndTime();
if (endTime == -1)
{
endTime = clip.getVideoDuration();
}
bool outputDoneNextTimeWeCheck = false;
bool outputDone = false;
bool inputDone = false;
bool decoderDone = false;
while (!outputDone)
{
// Feed more data to the decoder.
if (!inputDone)
{
int inputBufIndex = decoder.DequeueInputBuffer(TIMEOUT_USEC);
if (inputBufIndex >= 0)
{
if (extractor.SampleTime / 1000 >= endTime)
{
// End of stream -- send empty frame with EOS flag set.
decoder.QueueInputBuffer(inputBufIndex, 0, 0, 0L, MediaCodecBufferFlags.EndOfStream);
inputDone = true;
}
else
{
// Copy a chunk of input to the decoder. The first chunk should have
// the BUFFER_FLAG_CODEC_CONFIG flag set.
ByteBuffer inputBuf = decoderInputBuffers[inputBufIndex];
inputBuf.Clear();
int sampleSize = extractor.ReadSampleData(inputBuf, 0);
if (sampleSize < 0)
{
decoder.QueueInputBuffer(inputBufIndex, 0, 0, 0, MediaCodecBufferFlags.EndOfStream);
}
else
{
decoder.QueueInputBuffer(inputBufIndex, 0, sampleSize, extractor.SampleTime, 0);
extractor.Advance();
}
inputChunk++;
}
}
}
// Assume output is available. Loop until both assumptions are false.
bool decoderOutputAvailable = !decoderDone;
bool encoderOutputAvailable = true;
while (decoderOutputAvailable || encoderOutputAvailable)
{
// Start by draining any pending output from the encoder. It's important to
// do this before we try to stuff any more data in.
int encoderStatus = mEncoder.DequeueOutputBuffer(info, TIMEOUT_USEC);
if (encoderStatus == (int)MediaCodecInfoState.TryAgainLater)
{
encoderOutputAvailable = false;
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputBuffersChanged)
{
encoderOutputBuffers = mEncoder.GetOutputBuffers();
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputFormatChanged)
{
MediaFormat newFormat = mEncoder.OutputFormat;
mTrackIndex = mMuxer.AddTrack(newFormat);
mMuxer.Start();
mMuxerStarted = true;
}
else if (encoderStatus < 0)
{
// fail( "unexpected result from encoder.dequeueOutputBuffer: " + encoderStatus );
}
else
{ // encoderStatus >= 0
ByteBuffer encodedData = encoderOutputBuffers[encoderStatus];
if (encodedData == null)
{
// fail( "encoderOutputBuffer " + encoderStatus + " was null" );
}
// Write the data to the output "file".
if (info.Size != 0)
{
encodedData.Position(info.Offset);
encodedData.Limit(info.Offset + info.Size);
outputCount++;
mMuxer.WriteSampleData(mTrackIndex, encodedData, info);
}
outputDone = (info.Flags & MediaCodecBufferFlags.EndOfStream) != 0;
mEncoder.ReleaseOutputBuffer(encoderStatus, false);
}
if (outputDoneNextTimeWeCheck)
{
outputDone = true;
}
if (encoderStatus != (int)MediaCodecInfoState.TryAgainLater)
{
// Continue attempts to drain output.
continue;
}
// Encoder is drained, check to see if we've got a new frame of output from
// the decoder. (The output is going to a Surface, rather than a ByteBuffer,
// but we still get information through BufferInfo.)
if (!decoderDone)
{
int decoderStatus = decoder.DequeueOutputBuffer(info, TIMEOUT_USEC);
if (decoderStatus == (int)MediaCodecInfoState.TryAgainLater)
{
decoderOutputAvailable = false;
}
else if (decoderStatus == (int)MediaCodecInfoState.OutputBuffersChanged)
{
// decoderOutputBuffers = decoder.GetOutputBuffers();
}
else if (decoderStatus == (int)MediaCodecInfoState.OutputFormatChanged)
{
// expected before first buffer of data
MediaFormat newFormat = decoder.OutputFormat;
}
else if (decoderStatus < 0)
{
// fail( "unexpected result from decoder.dequeueOutputBuffer: " + decoderStatus );
}
else
{ // decoderStatus >= 0
// The ByteBuffers are null references, but we still get a nonzero
// size for the decoded data.
bool doRender = (info.Size != 0);
// As soon as we call ReleaseOutputBuffer, the buffer will be forwarded
// to SurfaceTexture to convert to a texture. The API doesn't
// guarantee that the texture will be available before the call
// returns, so we need to wait for the onFrameAvailable callback to
// fire. If we don't wait, we risk rendering from the previous frame.
decoder.ReleaseOutputBuffer(decoderStatus, doRender);
if (doRender)
{
mOutputSurface.AwaitNewImage(true);
mOutputSurface.DrawImage();
// Send it to the encoder.
long nSecs = info.PresentationTimeUs * 1000;
if (clip.getStartTime() != -1)
{
nSecs = (info.PresentationTimeUs - (clip.getStartTime() * 1000)) * 1000;
}
nSecs = Java.Lang.Math.Max(0, nSecs);
mEncoderPresentationTimeUs += (nSecs - mLastSampleTime);
mLastSampleTime = nSecs;
mInputSurface.SetPresentationTime(mEncoderPresentationTimeUs);
mInputSurface.SwapBuffers();
}
if ((info.Flags & MediaCodecBufferFlags.EndOfStream) != 0)
{
// mEncoder.signalEndOfInputStream();
outputDoneNextTimeWeCheck = true;
}
}
}
}
}
if (inputChunk != outputCount)
{
// throw new RuntimeException( "frame lost: " + inputChunk + " in, " + outputCount + " out" );
}
}
private void EncodeMux()
{
int TIMEOUT_USEC = 10000;
ByteBuffer[] encoderInputBuffers = _Encoder.GetInputBuffers();
bool inputDone = false;
int frameIndex = 0;
try
{
while (true)
{
if (!inputDone)
{
int inputBufIndex = _Encoder.DequeueInputBuffer(TIMEOUT_USEC);
if (inputBufIndex >= 0)
{
long ptsUsec = computePresentationTime(frameIndex);
if (frameIndex == _ByteBuffers.Count)
{
// Send an empty frame with the end-of-stream flag set. If we set EOS on a frame with data, that frame data will be ignored, and the output will be short one frame.
_Encoder.QueueInputBuffer(inputBufIndex, 0, 0, ptsUsec, MediaCodec.BufferFlagEndOfStream);
inputDone = true;
Log.Info(TAG, "sent input EOS (with zero-length frame)");
}
else
{
Log.Info(TAG, string.Format("Adding _ByteBuffers image index {0} to encoder", frameIndex));
ByteBuffer inputBuf = encoderInputBuffers[inputBufIndex];
var imagedata = _ByteBuffers[frameIndex];
int chunkSize = 0;
if (imagedata == null)
{
Log.Warn(TAG, string.Format("Adding _ByteBuffers image index {0} to encoder", frameIndex));
}
else
{
//old way don't need to do this anymore.
//Bitmap b = GetBitmap(imagedata);
//byte[] yuv = new byte[b.Width * b.Height * 3 / 2];
//int[] argb = new int[b.Width * b.Height];
//b.GetPixels(argb, 0, b.Width, 0, 0, b.Width, b.Height);
//encodeYUV420SP(yuv, argb, b.Width, b.Height);
//b.Recycle();
//old way don't need to do this anymore?
//int[] argb = new int[imagedata.Width * imagedata.Height];
//imagedata.GetPixels(argb, 0, imagedata.Width, 0, 0, imagedata.Width, imagedata.Height);
//byte[] yuv = new byte[imagedata.Width * imagedata.Height * 3 / 2];
//encodeYUV420SP(yuv, argb, imagedata.Width, imagedata.Height);
//YuvImage yuv = GetYUVImage(imagedata);
//byte[] decomB = Utils.DecompressFast(imagedata);
//var yuv = new YuvImage(decomB, _CameraColorFormat, _Width, _Height, null);
//Bitmap b = BitmapFactory.DecodeByteArray(imagedata, 0, imagedata.Length);
//byte[] yuv = new byte[b.Width * b.Height * 3 / 2];
//int[] argb = new int[b.Width * b.Height];
//b.GetPixels(argb, 0, b.Width, 0, 0, b.Width, b.Height);
//encodeYUV420SP(yuv, argb, b.Width, b.Height);
Bitmap b = BitmapFactory.DecodeByteArray(imagedata, 0, imagedata.Length);
byte[] yuv = new byte[b.Width * b.Height * 3 / 2];
int[] argb = new int[b.Width * b.Height];
b.GetPixels(argb, 0, b.Width, 0, 0, b.Width, b.Height);
encodeYUV420SP(yuv, argb, b.Width, b.Height);
var yuvimage = new YuvImage(yuv, _CameraColorFormat, _Width, _Height, null);
var yuvarray = yuvimage.GetYuvData();
colorcorrection(ref yuvarray, b.Width, b.Height); //method for fixing common color matching issues see below for comments
inputBuf.Put(yuvarray);
chunkSize = yuvarray.Length;
//yuv = null;
//GC.Collect(); //essential to fix memory leak from new YuvImage allocation above
b.Recycle();
}
// the buffer should be sized to hold one full frame
inputBuf.Clear();
_Encoder.QueueInputBuffer(inputBufIndex, 0, chunkSize, ptsUsec, 0);
frameIndex++;
}
}
else
{
// either all in use, or we timed out during initial setup
Log.Warn(TAG, "input buffer not available");
}
}
ByteBuffer[] encoderOutputBuffers = _Encoder.GetOutputBuffers();
var mBufferInfo = new MediaCodec.BufferInfo();
int encoderStatus = _Encoder.DequeueOutputBuffer(mBufferInfo, TIMEOUT_USEC);
if (encoderStatus == (int)MediaCodecInfoState.TryAgainLater)
{
Log.Info(TAG, "no output available, spinning to await EOS");
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputBuffersChanged)
{
// not expected for an encoder
Log.Warn(TAG, "not expected OutputBuffersChanged happened");
encoderOutputBuffers = _Encoder.GetOutputBuffers();
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputFormatChanged)
{
// should happen before receiving buffers, and should only happen once
if (_MuxerStarted)
{
Log.Error(TAG, "format changed twice and should never happen");
throw new RuntimeException("format changed twice");
}
MediaFormat newFormat = _Encoder.OutputFormat;
Log.Info(TAG, "format changed and starting MUX");
_TrackIndex = _Muxer.AddTrack(newFormat);
_Muxer.Start();
_MuxerStarted = true;
}
else if (encoderStatus < 0)
{
Log.Warn(TAG, "unexpected but lets ignore");
// let's ignore it
}
else
{
ByteBuffer encodedData = encoderOutputBuffers[encoderStatus];
if (encodedData == null)
{
Log.Error(TAG, string.Format("encoderOutputBuffer {0} was null!!", encoderStatus));
throw new RuntimeException(string.Format("encoderOutputBuffer {0} was null!!", encoderStatus));
}
if ((mBufferInfo.Flags & MediaCodecBufferFlags.CodecConfig) != 0)
{
// The codec config data was pulled out and fed to the muxer when we got
// the INFO_OUTPUT_FORMAT_CHANGED status. Ignore it.
mBufferInfo.Size = 0;
}
if (mBufferInfo.Size != 0)
{
if (!_MuxerStarted)
{
Log.Error(TAG, "muxer hasnt started!!");
throw new RuntimeException("muxer hasnt started");
}
// adjust the ByteBuffer values to match BufferInfo (not needed?) old
//encodedData.Position(mBufferInfo.Offset);
//encodedData.Limit(mBufferInfo.Offset + this.mBufferInfo.Size);
_Muxer.WriteSampleData(_TrackIndex, encodedData, mBufferInfo);
Log.Info(TAG, string.Format("{0} bytes to muxer", mBufferInfo.Size));
}
_Encoder.ReleaseOutputBuffer(encoderStatus, false);
if ((mBufferInfo.Flags & MediaCodecBufferFlags.EndOfStream) != 0)
{
Log.Info(TAG, "End of Stream Reached!!");
break;
}
}
}
}
catch (Exception e)
{
Log.Error(TAG, "Decode or Muxer failed", e, e.Message);
throw;
}
}
public override void OnOutputBufferAvailable(MediaCodec codec, int index, MediaCodec.BufferInfo info)
{
ByteBuffer outputBuffer = codec.GetOutputBuffer(index);
byte[] outputArray = new byte[outputBuffer.Remaining()];
outputBuffer.Get(outputArray);
DatagramPacket packet = new DatagramPacket(outputArray, outputArray.Length, InetAddress.GetByAddress(new byte[] { 192, 168, 0, 31 }), 9482);
_udpSocket.Send(packet);
codec.ReleaseOutputBuffer(index, false);
}
/**
* Checks the video data.
*
* @return the number of bad frames
*/
private int checkVideoData(VideoChunks inputData, MediaCodec decoder, OutputSurface surface)
{
const int TIMEOUT_USEC = 1000;
ByteBuffer[] decoderInputBuffers = decoder.GetInputBuffers();
ByteBuffer[] decoderOutputBuffers = decoder.GetOutputBuffers();
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
int inputChunk = 0;
int checkIndex = 0;
int badFrames = 0;
bool outputDone = false;
bool inputDone = false;
while (!outputDone)
{
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "check loop");
}
// Feed more data to the decoder.
if (!inputDone)
{
int inputBufIndex = decoder.DequeueInputBuffer(TIMEOUT_USEC);
if (inputBufIndex >= 0)
{
if (inputChunk == inputData.NumChunks)
{
// End of stream -- send empty frame with EOS flag set.
decoder.QueueInputBuffer(inputBufIndex, 0, 0, 0L,
MediaCodec.BufferFlagEndOfStream);
inputDone = true;
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "sent input EOS");
}
}
else
{
// Copy a chunk of input to the decoder. The first chunk should have
// the BUFFER_FLAG_CODEC_CONFIG flag set.
ByteBuffer inputBuf = decoderInputBuffers[inputBufIndex];
inputBuf.Clear();
inputData.getChunkData(inputChunk, inputBuf);
int flags = inputData.getChunkFlags(inputChunk);
long time = inputData.getChunkTime(inputChunk);
decoder.QueueInputBuffer(inputBufIndex, 0, inputBuf.Position(),
time, (MediaCodecBufferFlags)flags);
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "submitted frame " + inputChunk + " to dec, size=" +
inputBuf.Position() + " flags=" + flags);
}
inputChunk++;
}
}
else
{
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "input buffer not available");
}
}
}
if (!outputDone)
{
int decoderStatus = decoder.DequeueOutputBuffer(info, TIMEOUT_USEC);
if (decoderStatus == (int)MediaCodec.InfoTryAgainLater)
{
// no output available yet
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "no output from decoder available");
}
}
else if (decoderStatus == (int)MediaCodec.InfoOutputBuffersChanged)
{
decoderOutputBuffers = decoder.GetOutputBuffers();
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "decoder output buffers changed");
}
}
else if (decoderStatus == (int)MediaCodec.InfoOutputFormatChanged)
{
MediaFormat newFormat = decoder.OutputFormat;
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "decoder output format changed: " + newFormat);
}
}
else if (decoderStatus < 0)
{
fail("unexpected result from decoder.dequeueOutputBuffer: " + decoderStatus);
}
else // decoderStatus >= 0
{
ByteBuffer decodedData = decoderOutputBuffers[decoderStatus];
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "surface decoder given buffer " + decoderStatus +
" (size=" + info.Size + ")");
}
if ((info.Flags & MediaCodec.BufferFlagEndOfStream) != 0)
{
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "output EOS");
}
outputDone = true;
}
bool doRender = (info.Size != 0);
// As soon as we call releaseOutputBuffer, the buffer will be forwarded
// to SurfaceTexture to convert to a texture. The API doesn't guarantee
// that the texture will be available before the call returns, so we
// need to wait for the onFrameAvailable callback to fire.
decoder.ReleaseOutputBuffer(decoderStatus, doRender);
if (doRender)
{
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "awaiting frame " + checkIndex);
}
assertEquals("Wrong time stamp", computePresentationTime(checkIndex),
info.PresentationTimeUs);
surface.AwaitNewImage();
surface.DrawImage();
if (!checkSurfaceFrame(checkIndex++))
{
badFrames++;
}
}
}
}
}
return(badFrames);
}
/**
* Edits a stream of video data.
*/
private void editVideoData(VideoChunks inputData, MediaCodec decoder,
OutputSurface outputSurface, InputSurface inputSurface, MediaCodec encoder,
VideoChunks outputData)
{
const int TIMEOUT_USEC = 10000;
ByteBuffer[] decoderInputBuffers = decoder.GetInputBuffers();
ByteBuffer[] encoderOutputBuffers = encoder.GetOutputBuffers();
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
int inputChunk = 0;
int outputCount = 0;
bool outputDone = false;
bool inputDone = false;
bool decoderDone = false;
while (!outputDone)
{
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "edit loop");
}
// Feed more data to the decoder.
if (!inputDone)
{
int inputBufIndex = decoder.DequeueInputBuffer(TIMEOUT_USEC);
if (inputBufIndex >= 0)
{
if (inputChunk == inputData.NumChunks)
{
// End of stream -- send empty frame with EOS flag set.
decoder.QueueInputBuffer(inputBufIndex, 0, 0, 0L,
MediaCodecBufferFlags.EndOfStream);
inputDone = true;
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "sent input EOS (with zero-length frame)");
}
}
else
{
// Copy a chunk of input to the decoder. The first chunk should have
// the BUFFER_FLAG_CODEC_CONFIG flag set.
ByteBuffer inputBuf = decoderInputBuffers[inputBufIndex];
inputBuf.Clear();
inputData.getChunkData(inputChunk, inputBuf);
int flags = inputData.getChunkFlags(inputChunk);
long time = inputData.getChunkTime(inputChunk);
decoder.QueueInputBuffer(inputBufIndex, 0, inputBuf.Position(),
time, (MediaCodecBufferFlags)flags); // TODO: Not sure if it's MediaCodecBufferFlags, verify.
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "submitted frame " + inputChunk + " to dec, size=" +
inputBuf.Position() + " flags=" + flags);
}
inputChunk++;
}
}
else
{
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "input buffer not available");
}
}
}
// Assume output is available. Loop until both assumptions are false.
bool decoderOutputAvailable = !decoderDone;
bool encoderOutputAvailable = true;
while (decoderOutputAvailable || encoderOutputAvailable)
{
// Start by draining any pending output from the encoder. It's important to
// do this before we try to stuff any more data in.
int encoderStatus = encoder.DequeueOutputBuffer(info, TIMEOUT_USEC);
if (encoderStatus == (int)MediaCodecInfoState.TryAgainLater)
{
// no output available yet
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "no output from encoder available");
}
encoderOutputAvailable = false;
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputBuffersChanged)
{
encoderOutputBuffers = encoder.GetOutputBuffers();
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "encoder output buffers changed");
}
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputFormatChanged)
{
MediaFormat newFormat = encoder.OutputFormat;
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "encoder output format changed: " + newFormat);
}
}
else if (encoderStatus < 0)
{
fail("unexpected result from encoder.dequeueOutputBuffer: " + encoderStatus);
}
else // encoderStatus >= 0
{
ByteBuffer encodedData = encoderOutputBuffers[encoderStatus];
if (encodedData == null)
{
fail("encoderOutputBuffer " + encoderStatus + " was null");
}
// Write the data to the output "file".
if (info.Size != 0)
{
encodedData.Position(info.Offset);
encodedData.Limit(info.Offset + info.Size);
outputData.addChunk(encodedData, (int)info.Flags, info.PresentationTimeUs);
outputCount++;
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "encoder output " + info.Size + " bytes");
}
}
outputDone = (info.Flags & MediaCodec.BufferFlagEndOfStream) != 0;
encoder.ReleaseOutputBuffer(encoderStatus, false);
}
if (encoderStatus != (int)MediaCodec.InfoTryAgainLater)
{
// Continue attempts to drain output.
continue;
}
// Encoder is drained, check to see if we've got a new frame of output from
// the decoder. (The output is going to a Surface, rather than a ByteBuffer,
// but we still get information through BufferInfo.)
if (!decoderDone)
{
int decoderStatus = decoder.DequeueOutputBuffer(info, TIMEOUT_USEC);
if (decoderStatus == (int)MediaCodec.InfoTryAgainLater)
{
// no output available yet
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "no output from decoder available");
}
decoderOutputAvailable = false;
}
else if (decoderStatus == (int)MediaCodec.InfoOutputBuffersChanged)
{
//decoderOutputBuffers = decoder.getOutputBuffers();
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "decoder output buffers changed (we don't care)");
}
}
else if (decoderStatus == (int)MediaCodec.InfoOutputFormatChanged)
{
// expected before first buffer of data
MediaFormat newFormat = decoder.OutputFormat;
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "decoder output format changed: " + newFormat);
}
}
else if (decoderStatus < 0)
{
fail("unexpected result from decoder.dequeueOutputBuffer: " + decoderStatus);
}
else // decoderStatus >= 0
{
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "surface decoder given buffer " + decoderStatus + " (size=" + info.Size + "(");
}
// The ByteBuffers are null references, but we still get a nonzero
// size for the decoded data.
bool doRender = (info.Size != 0);
// As soon as we call releaseOutputBuffer, the buffer will be forwarded
// to SurfaceTexture to convert to a texture. The API doesn't
// guarantee that the texture will be available before the call
// returns, so we need to wait for the onFrameAvailable callback to
// fire. If we don't wait, we risk rendering from the previous frame.
decoder.ReleaseOutputBuffer(decoderStatus, doRender);
if (doRender)
{
// This waits for the image and renders it after it arrives.
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "awaiting frame");
}
outputSurface.AwaitNewImage();
outputSurface.DrawImage();
// Send it to the encoder.
inputSurface.SetPresentationTime(info.PresentationTimeUs * 1000);
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "swapBuffers");
}
inputSurface.SwapBuffers();
}
if ((info.Flags & MediaCodec.BufferFlagEndOfStream) != 0)
{
// forward decoder EOS to encoder
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "signaling input EOS");
}
if (WORK_AROUND_BUGS)
{
// Bail early, possibly dropping a frame.
return;
}
else
{
encoder.SignalEndOfInputStream();
}
}
}
}
}
}
if (inputChunk != outputCount)
{
throw new RuntimeException("frame lost: " + inputChunk + " in, " +
outputCount + " out");
}
}
/**
* Generates video frames, feeds them into the encoder, and writes the output to the
* VideoChunks instance.
*/
private void generateVideoData(MediaCodec encoder, InputSurface inputSurface,
VideoChunks output)
{
ByteBuffer[] encoderOutputBuffers = encoder.GetOutputBuffers();
MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
int generateIndex = 0;
int outputCount = 0;
// Loop until the output side is done.
bool inputDone = false;
bool outputDone = false;
while (!outputDone)
{
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "gen loop");
}
// If we're not done submitting frames, generate a new one and submit it. The
// eglSwapBuffers call will block if the input is full.
if (!inputDone)
{
if (generateIndex == NUM_FRAMES)
{
// Send an empty frame with the end-of-stream flag set.
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "signaling input EOS");
}
if (WORK_AROUND_BUGS)
{
// Might drop a frame, but at least we won't crash mediaserver.
try { Thread.Sleep(500); } catch (InterruptedException ie) {}
outputDone = true;
}
else
{
encoder.SignalEndOfInputStream();
}
inputDone = true;
}
else
{
generateSurfaceFrame(generateIndex);
inputSurface.SetPresentationTime(computePresentationTime(generateIndex) * 1000);
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "inputSurface swapBuffers");
}
inputSurface.SwapBuffers();
}
generateIndex++;
}
// Check for output from the encoder. If there's no output yet, we either need to
// provide more input, or we need to wait for the encoder to work its magic. We
// can't actually tell which is the case, so if we can't get an output buffer right
// away we loop around and see if it wants more input.
//
// If we do find output, drain it all before supplying more input.
while (true)
{
int encoderStatus = encoder.DequeueOutputBuffer(info, TIMEOUT_USEC);
if (encoderStatus == (int)MediaCodecInfoState.TryAgainLater)
{
// no output available yet
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "no output from encoder available");
}
break; // out of while
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputBuffersChanged)
{
// not expected for an encoder
encoderOutputBuffers = encoder.GetOutputBuffers();
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "encoder output buffers changed");
}
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputFormatChanged)
{
// not expected for an encoder
MediaFormat newFormat = encoder.OutputFormat;
if (AppSettings.Logging.SendToConsole)
{
Log.Debug(TAG, "encoder output format changed: " + newFormat);
}
}
else if (encoderStatus < 0)
{
fail("unexpected result from encoder.dequeueOutputBuffer: " + encoderStatus);
}
else // encoderStatus >= 0
{
ByteBuffer encodedData = encoderOutputBuffers[encoderStatus];
if (encodedData == null)
{
fail("encoderOutputBuffer " + encoderStatus + " was null");
}
// Codec config flag must be set iff this is the first chunk of output. This
// may not hold for all codecs, but it appears to be the case for video/avc.
assertTrue((info.Flags & MediaCodec.BufferFlagCodecConfig) != 0 ||
outputCount != 0);
if (info.Size != 0)
{
// Adjust the ByteBuffer values to match BufferInfo.
encodedData.Position(info.Offset);
encodedData.Limit(info.Offset + info.Size);
output.addChunk(encodedData, (int)info.Flags, info.PresentationTimeUs);
outputCount++;
}
encoder.ReleaseOutputBuffer(encoderStatus, false);
if ((info.Flags & MediaCodec.BufferFlagEndOfStream) != 0)
{
outputDone = true;
break; // out of while
}
}
}
}
assertEquals("Frame count", NUM_FRAMES + 1, outputCount);
}
public void Decode(MediaCodec _Decoder, MediaExtractor extractor)
{
Stopwatch s = new Stopwatch();
s.Start();
int TIMEOUT_USEC = 10000;
ByteBuffer[] encoderInputBuffers = _Decoder.GetInputBuffers();
ByteBuffer[] outputBuffers = _Decoder.GetOutputBuffers();
var mBufferInfo = new MediaCodec.BufferInfo();
bool inputDone = false;
var index = 0;
try
{
while (true)
{
if (!inputDone)
{
int inputBufIndex = _Decoder.DequeueInputBuffer(TIMEOUT_USEC);
if (inputBufIndex >= 0)
{
ByteBuffer buffer = encoderInputBuffers[inputBufIndex];
//long ptsUsec = computePresentationTime(frameIndex);
int sampleSize = extractor.ReadSampleData(buffer, 0);
if (sampleSize < 0)
{
// Send an empty frame with the end-of-stream flag set. If we set EOS on a frame with data, that frame data will be ignored, and the output will be short one frame.
_Decoder.QueueInputBuffer(inputBufIndex, 0, 0, 0, MediaCodec.BufferFlagEndOfStream);
inputDone = true;
Log.Info(TAG, "sent input EOS (with zero-length frame)");
}
else
{
Log.Info(TAG, "adding encoded video to decoder input ");
_Decoder.QueueInputBuffer(inputBufIndex, 0, sampleSize, extractor.SampleTime, 0);
extractor.Advance();
}
}
else
{
// either all in use, or we timed out during initial setup
Log.Warn(TAG, "input buffer not available");
}
}
//ByteBuffer[] encoderOutputBuffers = _Decoder.GetOutputBuffers();
int encoderStatus = _Decoder.DequeueOutputBuffer(mBufferInfo, TIMEOUT_USEC);
if (encoderStatus == (int)MediaCodecInfoState.TryAgainLater)
{
Log.Info(TAG, "no output available, spinning to await EOS");
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputBuffersChanged)
{
// not expected for an encoder
Log.Warn(TAG, "not expected OutputBuffersChanged happened");
outputBuffers = _Decoder.GetOutputBuffers();
}
else if (encoderStatus == (int)MediaCodecInfoState.OutputFormatChanged)
{
// should happen before receiving buffers, and should only happen once
//if (_MuxerStarted)
//{
// Log.Error(TAG, "format changed twice and should never happen");
// throw new RuntimeException("format changed twice");
//}
//MediaFormat newFormat = _Decoder.OutputFormat;
//Log.Info(TAG, "format changed and starting MUX");
//_TrackIndex = _Muxer.AddTrack(newFormat);
//_Muxer.Start();
//_MuxerStarted = true;
}
else if (encoderStatus < 0)
{
Log.Warn(TAG, "unexpected but lets ignore");
// let's ignore it
}
else
{
ByteBuffer encodedData = outputBuffers[encoderStatus];
if (encodedData == null)
{
Log.Error(TAG, string.Format("encoderOutputBuffer {0} was null!!", encoderStatus));
throw new RuntimeException(string.Format("encoderOutputBuffer {0} was null!!", encoderStatus));
}
if ((mBufferInfo.Flags & MediaCodecBufferFlags.CodecConfig) != 0)
{
// The codec config data was pulled out and fed to the muxer when we got
// the INFO_OUTPUT_FORMAT_CHANGED status. Ignore it.
mBufferInfo.Size = 0;
}
if (mBufferInfo.Size != 0)
{
//if (!_MuxerStarted)
//{
// Log.Error(TAG, "muxer hasnt started!!");
// throw new RuntimeException("muxer hasnt started");
//}
// adjust the ByteBuffer values to match BufferInfo (not needed?) old
//encodedData.Position(mBufferInfo.Offset);
//encodedData.Limit(mBufferInfo.Offset + this.mBufferInfo.Size);
try
{
//byte[] dst = new byte[outputBuffers[encoderStatus].Capacity()];
//outputBuffers[encoderStatus].Get(dst);
//ByteBuffer buffer = outputBuffers[encoderStatus];
//byte[] ba = new byte[encodedData.Remaining()];
//encodedData.Get(ba);
//ByteBuffer buffer = outputBuffers[encoderStatus];
//buffer.Position(mBufferInfo.Offset);
//buffer.Limit(mBufferInfo.Offset + mBufferInfo.Size);
//byte[] ba = new byte[buffer.Remaining()];
//buffer.Get(ba);
//if (index < 10)
//{
YuvImage yuv = Utils.GetYUVImage(encodedData, _CameraColorFormat, _Width, _Height);
//var imagedata = yuv.GetYuvData();
//Utils.swapNV21_NV12(ref imagedata, _Width, _Height);
//Image might need to be corrected later
//Bitmap b = Utils.GetBitmap(yuv, _Width, _Height);
//Bitmap bmp = BitmapFactory.DecodeByteArray(ba, 0, ba.Length);// this return null
//var createfilepath = new File(_downloadsfilesdir, DateTime.Now.Ticks + ".png").AbsolutePath;
//using (FileStream bos = new FileStream(createfilepath, FileMode.CreateNew))
//{
// b.Compress(Bitmap.CompressFormat.Png, 100, bos);
//}
//b.Recycle();
//}
index++;
//writeFrameToSDCard(dst, i, dst.length);
//i++;
}
catch (Exception e)
{
//Log("iDecodeActivity", "Error while creating bitmap with: ");
}
_Decoder.ReleaseOutputBuffer(encoderStatus, false);
}
if ((mBufferInfo.Flags & MediaCodecBufferFlags.EndOfStream) != 0)
{
Log.Info(TAG, "End of Stream Reached!!");
break;
}
}
}
s.Stop();
Log.Info("inner STOPWATCH!!!!:", string.Format("numberofframes = {0}, totaltime = {1}", index, s.ElapsedMilliseconds));
}
catch (Exception e)
{
Log.Error(TAG, "Decode or Muxer failed", e, e.Message);
throw;
}
}