ACodec.h revision 8a4728966dc9c78e21c3c93a927707e93c05e5e0 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef A_CODEC_H_
18
19#define A_CODEC_H_
20
21#include <stdint.h>
22#include <android/native_window.h>
23#include <media/IOMX.h>
24#include <media/stagefright/foundation/AHierarchicalStateMachine.h>
25#include <media/stagefright/CodecBase.h>
26#include <media/stagefright/SkipCutBuffer.h>
27#include <OMX_Audio.h>
28
29#define TRACK_BUFFER_TIMING     0
30
31namespace android {
32
33struct ABuffer;
34struct MemoryDealer;
35struct DescribeColorFormatParams;
36
37struct ACodec : public AHierarchicalStateMachine, public CodecBase {
38    ACodec();
39
40    virtual void setNotificationMessage(const sp<AMessage> &msg);
41
42    void initiateSetup(const sp<AMessage> &msg);
43
44    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
45    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
46    virtual void initiateCreateInputSurface();
47    virtual void initiateStart();
48    virtual void initiateShutdown(bool keepComponentAllocated = false);
49
50    virtual void signalFlush();
51    virtual void signalResume();
52
53    virtual void signalSetParameters(const sp<AMessage> &msg);
54    virtual void signalEndOfInputStream();
55    virtual void signalRequestIDRFrame();
56
57    // AHierarchicalStateMachine implements the message handling
58    virtual void onMessageReceived(const sp<AMessage> &msg) {
59        handleMessage(msg);
60    }
61
62    struct PortDescription : public CodecBase::PortDescription {
63        size_t countBuffers();
64        IOMX::buffer_id bufferIDAt(size_t index) const;
65        sp<ABuffer> bufferAt(size_t index) const;
66
67    private:
68        friend struct ACodec;
69
70        Vector<IOMX::buffer_id> mBufferIDs;
71        Vector<sp<ABuffer> > mBuffers;
72
73        PortDescription();
74        void addBuffer(IOMX::buffer_id id, const sp<ABuffer> &buffer);
75
76        DISALLOW_EVIL_CONSTRUCTORS(PortDescription);
77    };
78
79    static bool isFlexibleColorFormat(
80            const sp<IOMX> &omx, IOMX::node_id node,
81            uint32_t colorFormat, OMX_U32 *flexibleEquivalent);
82
83    // Returns 0 if configuration is not supported.  NOTE: this is treated by
84    // some OMX components as auto level, and by others as invalid level.
85    static int /* OMX_VIDEO_AVCLEVELTYPE */ getAVCLevelFor(
86            int width, int height, int rate, int bitrate,
87            OMX_VIDEO_AVCPROFILETYPE profile = OMX_VIDEO_AVCProfileBaseline);
88
89protected:
90    virtual ~ACodec();
91
92private:
93    struct BaseState;
94    struct UninitializedState;
95    struct LoadedState;
96    struct LoadedToIdleState;
97    struct IdleToExecutingState;
98    struct ExecutingState;
99    struct OutputPortSettingsChangedState;
100    struct ExecutingToIdleState;
101    struct IdleToLoadedState;
102    struct FlushingState;
103    struct DeathNotifier;
104
105    enum {
106        kWhatSetup                   = 'setu',
107        kWhatOMXMessage              = 'omx ',
108        kWhatInputBufferFilled       = 'inpF',
109        kWhatOutputBufferDrained     = 'outD',
110        kWhatShutdown                = 'shut',
111        kWhatFlush                   = 'flus',
112        kWhatResume                  = 'resm',
113        kWhatDrainDeferredMessages   = 'drai',
114        kWhatAllocateComponent       = 'allo',
115        kWhatConfigureComponent      = 'conf',
116        kWhatCreateInputSurface      = 'cisf',
117        kWhatSignalEndOfInputStream  = 'eois',
118        kWhatStart                   = 'star',
119        kWhatRequestIDRFrame         = 'ridr',
120        kWhatSetParameters           = 'setP',
121        kWhatSubmitOutputMetaDataBufferIfEOS = 'subm',
122        kWhatOMXDied                 = 'OMXd',
123        kWhatReleaseCodecInstance    = 'relC',
124    };
125
126    enum {
127        kPortIndexInput  = 0,
128        kPortIndexOutput = 1
129    };
130
131    enum {
132        kFlagIsSecure                                 = 1,
133        kFlagPushBlankBuffersToNativeWindowOnShutdown = 2,
134    };
135
136    struct BufferInfo {
137        enum Status {
138            OWNED_BY_US,
139            OWNED_BY_COMPONENT,
140            OWNED_BY_UPSTREAM,
141            OWNED_BY_DOWNSTREAM,
142            OWNED_BY_NATIVE_WINDOW,
143        };
144
145        IOMX::buffer_id mBufferID;
146        Status mStatus;
147        unsigned mDequeuedAt;
148
149        sp<ABuffer> mData;
150        sp<GraphicBuffer> mGraphicBuffer;
151    };
152
153#if TRACK_BUFFER_TIMING
154    struct BufferStats {
155        int64_t mEmptyBufferTimeUs;
156        int64_t mFillBufferDoneTimeUs;
157    };
158
159    KeyedVector<int64_t, BufferStats> mBufferStats;
160#endif
161
162    sp<AMessage> mNotify;
163
164    sp<UninitializedState> mUninitializedState;
165    sp<LoadedState> mLoadedState;
166    sp<LoadedToIdleState> mLoadedToIdleState;
167    sp<IdleToExecutingState> mIdleToExecutingState;
168    sp<ExecutingState> mExecutingState;
169    sp<OutputPortSettingsChangedState> mOutputPortSettingsChangedState;
170    sp<ExecutingToIdleState> mExecutingToIdleState;
171    sp<IdleToLoadedState> mIdleToLoadedState;
172    sp<FlushingState> mFlushingState;
173    sp<SkipCutBuffer> mSkipCutBuffer;
174
175    AString mComponentName;
176    uint32_t mFlags;
177    uint32_t mQuirks;
178    sp<IOMX> mOMX;
179    IOMX::node_id mNode;
180    sp<MemoryDealer> mDealer[2];
181
182    sp<ANativeWindow> mNativeWindow;
183    sp<AMessage> mInputFormat;
184    sp<AMessage> mOutputFormat;
185    sp<AMessage> mBaseOutputFormat;
186
187    Vector<BufferInfo> mBuffers[2];
188    bool mPortEOS[2];
189    status_t mInputEOSResult;
190
191    List<sp<AMessage> > mDeferredQueue;
192
193    bool mSentFormat;
194    bool mIsEncoder;
195    bool mUseMetadataOnEncoderOutput;
196    bool mShutdownInProgress;
197    bool mExplicitShutdown;
198
199    // If "mKeepComponentAllocated" we only transition back to Loaded state
200    // and do not release the component instance.
201    bool mKeepComponentAllocated;
202
203    int32_t mEncoderDelay;
204    int32_t mEncoderPadding;
205    int32_t mRotationDegrees;
206
207    bool mChannelMaskPresent;
208    int32_t mChannelMask;
209    unsigned mDequeueCounter;
210    bool mStoreMetaDataInOutputBuffers;
211    int32_t mMetaDataBuffersToSubmit;
212    size_t mNumUndequeuedBuffers;
213
214    int64_t mRepeatFrameDelayUs;
215    int64_t mMaxPtsGapUs;
216
217    int64_t mTimePerFrameUs;
218    int64_t mTimePerCaptureUs;
219
220    bool mCreateInputBuffersSuspended;
221
222    bool mTunneled;
223
224    status_t setCyclicIntraMacroblockRefresh(const sp<AMessage> &msg, int32_t mode);
225    status_t allocateBuffersOnPort(OMX_U32 portIndex);
226    status_t freeBuffersOnPort(OMX_U32 portIndex);
227    status_t freeBuffer(OMX_U32 portIndex, size_t i);
228
229    status_t configureOutputBuffersFromNativeWindow(
230            OMX_U32 *nBufferCount, OMX_U32 *nBufferSize,
231            OMX_U32 *nMinUndequeuedBuffers);
232    status_t allocateOutputMetaDataBuffers();
233    status_t submitOutputMetaDataBuffer();
234    void signalSubmitOutputMetaDataBufferIfEOS_workaround();
235    status_t allocateOutputBuffersFromNativeWindow();
236    status_t cancelBufferToNativeWindow(BufferInfo *info);
237    status_t freeOutputBuffersNotOwnedByComponent();
238    BufferInfo *dequeueBufferFromNativeWindow();
239
240    BufferInfo *findBufferByID(
241            uint32_t portIndex, IOMX::buffer_id bufferID,
242            ssize_t *index = NULL);
243
244    status_t setComponentRole(bool isEncoder, const char *mime);
245    status_t configureCodec(const char *mime, const sp<AMessage> &msg);
246
247    status_t configureTunneledVideoPlayback(int32_t audioHwSync,
248            const sp<ANativeWindow> &nativeWindow);
249
250    status_t setVideoPortFormatType(
251            OMX_U32 portIndex,
252            OMX_VIDEO_CODINGTYPE compressionFormat,
253            OMX_COLOR_FORMATTYPE colorFormat);
254
255    status_t setSupportedOutputFormat();
256
257    status_t setupVideoDecoder(
258            const char *mime, const sp<AMessage> &msg);
259
260    status_t setupVideoEncoder(
261            const char *mime, const sp<AMessage> &msg);
262
263    status_t setVideoFormatOnPort(
264            OMX_U32 portIndex,
265            int32_t width, int32_t height,
266            OMX_VIDEO_CODINGTYPE compressionFormat);
267
268    typedef struct drcParams {
269        int32_t drcCut;
270        int32_t drcBoost;
271        int32_t heavyCompression;
272        int32_t targetRefLevel;
273        int32_t encodedTargetLevel;
274    } drcParams_t;
275
276    status_t setupAACCodec(
277            bool encoder,
278            int32_t numChannels, int32_t sampleRate, int32_t bitRate,
279            int32_t aacProfile, bool isADTS, int32_t sbrMode,
280            int32_t maxOutputChannelCount, const drcParams_t& drc,
281            int32_t pcmLimiterEnable);
282
283    status_t setupAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
284
285    status_t setupEAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
286
287    status_t selectAudioPortFormat(
288            OMX_U32 portIndex, OMX_AUDIO_CODINGTYPE desiredFormat);
289
290    status_t setupAMRCodec(bool encoder, bool isWAMR, int32_t bitRate);
291    status_t setupG711Codec(bool encoder, int32_t numChannels);
292
293    status_t setupFlacCodec(
294            bool encoder, int32_t numChannels, int32_t sampleRate, int32_t compressionLevel);
295
296    status_t setupRawAudioFormat(
297            OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels);
298
299    status_t setMinBufferSize(OMX_U32 portIndex, size_t size);
300
301    status_t setupMPEG4EncoderParameters(const sp<AMessage> &msg);
302    status_t setupH263EncoderParameters(const sp<AMessage> &msg);
303    status_t setupAVCEncoderParameters(const sp<AMessage> &msg);
304    status_t setupHEVCEncoderParameters(const sp<AMessage> &msg);
305    status_t setupVPXEncoderParameters(const sp<AMessage> &msg);
306
307    status_t verifySupportForProfileAndLevel(int32_t profile, int32_t level);
308
309    status_t configureBitrate(
310            int32_t bitrate, OMX_VIDEO_CONTROLRATETYPE bitrateMode);
311
312    status_t setupErrorCorrectionParameters();
313
314    status_t initNativeWindow();
315
316    status_t pushBlankBuffersToNativeWindow();
317
318    // Returns true iff all buffers on the given port have status
319    // OWNED_BY_US or OWNED_BY_NATIVE_WINDOW.
320    bool allYourBuffersAreBelongToUs(OMX_U32 portIndex);
321
322    bool allYourBuffersAreBelongToUs();
323
324    void waitUntilAllPossibleNativeWindowBuffersAreReturnedToUs();
325
326    size_t countBuffersOwnedByComponent(OMX_U32 portIndex) const;
327    size_t countBuffersOwnedByNativeWindow() const;
328
329    void deferMessage(const sp<AMessage> &msg);
330    void processDeferredMessages();
331
332    void sendFormatChange(const sp<AMessage> &reply);
333    status_t getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify);
334
335    void signalError(
336            OMX_ERRORTYPE error = OMX_ErrorUndefined,
337            status_t internalError = UNKNOWN_ERROR);
338
339    static bool describeDefaultColorFormat(DescribeColorFormatParams &describeParams);
340    static bool describeColorFormat(
341        const sp<IOMX> &omx, IOMX::node_id node,
342        DescribeColorFormatParams &describeParams);
343
344    status_t requestIDRFrame();
345    status_t setParameters(const sp<AMessage> &params);
346
347    // Send EOS on input stream.
348    void onSignalEndOfInputStream();
349
350    DISALLOW_EVIL_CONSTRUCTORS(ACodec);
351};
352
353}  // namespace android
354
355#endif  // A_CODEC_H_
356