-
Notifications
You must be signed in to change notification settings - Fork 1
/
DecodeEditPlay.kt
216 lines (183 loc) · 7.11 KB
/
DecodeEditPlay.kt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
package com.example.learnmediacodec
import android.annotation.SuppressLint
import android.graphics.SurfaceTexture
import android.media.MediaCodec
import android.media.MediaCodecList
import android.media.MediaExtractor
import android.media.MediaFormat
import android.opengl.*
import android.os.Bundle
import android.util.Log
import android.view.Surface
import androidx.appcompat.app.AppCompatActivity
import java.nio.ByteBuffer
import java.util.concurrent.atomic.AtomicBoolean
import javax.microedition.khronos.opengles.GL10
class DecodeEditPlay : AppCompatActivity(), SurfaceTexture.OnFrameAvailableListener {
private val TAG = "DecodeEditPlay"
private var mOutputSurface: Surface? = null
private var mSurfaceTexture : SurfaceTexture? = null
private var mTextureRenderer: TextureRenderer2? = null
private var width = 0
private var height = 0
private val texMatrix = FloatArray(16)
private val lock = Object()
@Volatile
private var frameAvailable = false
inner class MyGLSurfaceRender : GLSurfaceView.Renderer {
override fun onSurfaceCreated(
gl: GL10?,
config: javax.microedition.khronos.egl.EGLConfig?
) {
mTextureRenderer = TextureRenderer2()
Matrix.setIdentityM(texMatrix, 0)
// create a thread to decode video
Thread {
decodeSync()
}.start()
}
override fun onSurfaceChanged(gl: GL10?, width: Int, height: Int) {
Log.d(TAG, "onSurfaceChanged")
}
override fun onDrawFrame(gl: GL10?) {
Log.d(TAG, "onDrawFrame")
if(frameAvailable){
mSurfaceTexture?.updateTexImage()
mSurfaceTexture?.getTransformMatrix(texMatrix)
}
// draw oes texture to screen
mTextureRenderer?.draw(width, height, texMatrix, getMvp())
}
}
private fun getMvp(): FloatArray {
val mvp = FloatArray(16)
Matrix.setIdentityM(mvp, 0)
// Set your transformations here
// Matrix.scaleM(mvp, 0, 1f, -1f, 1f)
//
return mvp
}
private var glRenderer = MyGLSurfaceRender()
private lateinit var glSurfaceView: GLSurfaceView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_decode_edit_play)
Log.d(TAG, "onCreate")
glSurfaceView = findViewById<GLSurfaceView>(R.id.glSurfaceView)
glSurfaceView.setEGLContextClientVersion(2)
glSurfaceView.setRenderer(glRenderer)
Log.d(TAG, "config glSurfaceView")
}
override fun onDestroy() {
super.onDestroy()
}
private fun decodeSync() {
mSurfaceTexture = SurfaceTexture(mTextureRenderer!!.texId)
mSurfaceTexture!!.setOnFrameAvailableListener(this)
mOutputSurface = Surface(mSurfaceTexture)
// create and configure media extractor
val mediaExtractor = MediaExtractor()
resources.openRawResourceFd(R.raw.h264_720p).use {
mediaExtractor.setDataSource(it)
}
val videoTrackIndex = 0
mediaExtractor.selectTrack(videoTrackIndex)
val videoFormat = mediaExtractor.getTrackFormat(videoTrackIndex)
width = videoFormat.getInteger(MediaFormat.KEY_WIDTH)
height = videoFormat.getInteger(MediaFormat.KEY_HEIGHT)
// create and configure media codec
val codecList = MediaCodecList(MediaCodecList.REGULAR_CODECS)
val codecName = codecList.findDecoderForFormat(videoFormat)
val codec = MediaCodec.createByCodecName(codecName)
val maxInputSize = videoFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE)
val inputBuffer = ByteBuffer.allocate(maxInputSize)
val bufferInfo = MediaCodec.BufferInfo()
val inputEnd = AtomicBoolean(false)
val outputEnd = AtomicBoolean(false)
// set codec callback in async mode
codec.setCallback(object : MediaCodec.Callback() {
override fun onInputBufferAvailable(codec: MediaCodec, inputBufferId: Int) {
Log.d(TAG, "onInputBufferAvailable")
val isExtractorReadEnd =
getInputBufferFromExtractor(mediaExtractor, inputBuffer, bufferInfo)
if (isExtractorReadEnd) {
inputEnd.set(true)
codec.queueInputBuffer(
inputBufferId, 0, 0, 0,
MediaCodec.BUFFER_FLAG_END_OF_STREAM
)
} else {
val codecInputBuffer = codec.getInputBuffer(inputBufferId)
codecInputBuffer!!.put(inputBuffer)
codec.queueInputBuffer(
inputBufferId,
0,
bufferInfo.size,
bufferInfo.presentationTimeUs,
bufferInfo.flags
)
mediaExtractor.advance()
}
}
override fun onOutputBufferAvailable(
codec: MediaCodec,
outputBufferId: Int,
info: MediaCodec.BufferInfo
) {
if (info.flags and MediaCodec.BUFFER_FLAG_END_OF_STREAM != 0) {
outputEnd.set(true)
}
if (info.size > 0) {
Log.i(TAG, "onOutputBufferAvailable")
codec.releaseOutputBuffer(outputBufferId, true)
// sleep for 30ms to simulate 30fps
Thread.sleep(30)
}
}
override fun onError(codec: MediaCodec, e: MediaCodec.CodecException) {
e.printStackTrace()
}
override fun onOutputFormatChanged(codec: MediaCodec, format: MediaFormat) {
Log.e(TAG, "onOutputFormatChanged")
}
})
// configure with surface
codec.configure(videoFormat, mOutputSurface, null, 0)
// start decoding
codec.start()
// wait for processing to complete
while (!outputEnd.get()) {
Thread.sleep(10)
}
mediaExtractor.release()
codec.stop()
codec.release()
mOutputSurface!!.release()
mOutputSurface = null
mSurfaceTexture!!.release()
mSurfaceTexture = null
}
@SuppressLint("WrongConstant")
private fun getInputBufferFromExtractor(
mediaExtractor: MediaExtractor,
inputBuffer: ByteBuffer,
bufferInfo: MediaCodec.BufferInfo
): Boolean {
val sampleSize = mediaExtractor.readSampleData(inputBuffer, 0)
if (sampleSize < 0) {
return true
}
bufferInfo.size = sampleSize
bufferInfo.presentationTimeUs = mediaExtractor.sampleTime
bufferInfo.offset = 0
bufferInfo.flags = mediaExtractor.sampleFlags
return false
}
override fun onFrameAvailable(surfaceTexture: SurfaceTexture?) {
Log.d(TAG, "onFrameAvailable")
synchronized(lock) {
frameAvailable = true
lock.notifyAll()
}
}
}