SoftMPEG4.cpp revision 7f616d3cc5366a4b8af20d3d0c768e3de1df0666 
1/*
2 * Copyright (C) 2011 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//#define LOG_NDEBUG 0
18#define LOG_TAG "SoftMPEG4"
19#include <utils/Log.h>
20
21#include "SoftMPEG4.h"
22
23#include <media/stagefright/foundation/ADebug.h>
24#include <media/stagefright/MediaDefs.h>
25#include <media/stagefright/MediaErrors.h>
26#include <media/IOMX.h>
27
28#include "mp4dec_api.h"
29
30namespace android {
31
32static const CodecProfileLevel kM4VProfileLevels[] = {
33    { OMX_VIDEO_MPEG4ProfileSimple, OMX_VIDEO_MPEG4Level0 },
34    { OMX_VIDEO_MPEG4ProfileSimple, OMX_VIDEO_MPEG4Level0b },
35    { OMX_VIDEO_MPEG4ProfileSimple, OMX_VIDEO_MPEG4Level1 },
36    { OMX_VIDEO_MPEG4ProfileSimple, OMX_VIDEO_MPEG4Level2 },
37    { OMX_VIDEO_MPEG4ProfileSimple, OMX_VIDEO_MPEG4Level3 },
38};
39
40static const CodecProfileLevel kH263ProfileLevels[] = {
41    { OMX_VIDEO_H263ProfileBaseline, OMX_VIDEO_H263Level10 },
42    { OMX_VIDEO_H263ProfileBaseline, OMX_VIDEO_H263Level20 },
43    { OMX_VIDEO_H263ProfileBaseline, OMX_VIDEO_H263Level30 },
44    { OMX_VIDEO_H263ProfileBaseline, OMX_VIDEO_H263Level45 },
45    { OMX_VIDEO_H263ProfileISWV2,    OMX_VIDEO_H263Level10 },
46    { OMX_VIDEO_H263ProfileISWV2,    OMX_VIDEO_H263Level20 },
47    { OMX_VIDEO_H263ProfileISWV2,    OMX_VIDEO_H263Level30 },
48    { OMX_VIDEO_H263ProfileISWV2,    OMX_VIDEO_H263Level45 },
49};
50
51SoftMPEG4::SoftMPEG4(
52        const char *name,
53        const char *componentRole,
54        OMX_VIDEO_CODINGTYPE codingType,
55        const CodecProfileLevel *profileLevels,
56        size_t numProfileLevels,
57        const OMX_CALLBACKTYPE *callbacks,
58        OMX_PTR appData,
59        OMX_COMPONENTTYPE **component)
60    : SoftVideoDecoderOMXComponent(
61            name, componentRole, codingType, profileLevels, numProfileLevels,
62            352 /* width */, 288 /* height */, callbacks, appData, component),
63      mMode(codingType == OMX_VIDEO_CodingH263 ? MODE_H263 : MODE_MPEG4),
64      mHandle(new tagvideoDecControls),
65      mInputBufferCount(0),
66      mSignalledError(false),
67      mInitialized(false),
68      mFramesConfigured(false),
69      mNumSamplesOutput(0),
70      mPvTime(0) {
71    initPorts(
72            kNumInputBuffers,
73            8192 /* inputBufferSize */,
74            kNumOutputBuffers,
75            (mMode == MODE_MPEG4)
76            ? MEDIA_MIMETYPE_VIDEO_MPEG4 : MEDIA_MIMETYPE_VIDEO_H263);
77    CHECK_EQ(initDecoder(), (status_t)OK);
78}
79
80SoftMPEG4::~SoftMPEG4() {
81    if (mInitialized) {
82        PVCleanUpVideoDecoder(mHandle);
83    }
84
85    delete mHandle;
86    mHandle = NULL;
87}
88
89status_t SoftMPEG4::initDecoder() {
90    memset(mHandle, 0, sizeof(tagvideoDecControls));
91    return OK;
92}
93
94void SoftMPEG4::onQueueFilled(OMX_U32 portIndex) {
95    if (mSignalledError || mOutputPortSettingsChange != NONE) {
96        return;
97    }
98
99    List<BufferInfo *> &inQueue = getPortQueue(0);
100    List<BufferInfo *> &outQueue = getPortQueue(1);
101
102    while (!inQueue.empty() && outQueue.size() == kNumOutputBuffers) {
103        BufferInfo *inInfo = *inQueue.begin();
104        OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
105
106        PortInfo *port = editPortInfo(1);
107
108        OMX_BUFFERHEADERTYPE *outHeader =
109            port->mBuffers.editItemAt(mNumSamplesOutput & 1).mHeader;
110
111        if ((inHeader->nFlags & OMX_BUFFERFLAG_EOS) && inHeader->nFilledLen == 0) {
112            inQueue.erase(inQueue.begin());
113            inInfo->mOwnedByUs = false;
114            notifyEmptyBufferDone(inHeader);
115
116            ++mInputBufferCount;
117
118            outHeader->nFilledLen = 0;
119            outHeader->nFlags = OMX_BUFFERFLAG_EOS;
120
121            List<BufferInfo *>::iterator it = outQueue.begin();
122            while ((*it)->mHeader != outHeader) {
123                ++it;
124            }
125
126            BufferInfo *outInfo = *it;
127            outInfo->mOwnedByUs = false;
128            outQueue.erase(it);
129            outInfo = NULL;
130
131            notifyFillBufferDone(outHeader);
132            outHeader = NULL;
133            return;
134        }
135
136        uint8_t *bitstream = inHeader->pBuffer + inHeader->nOffset;
137
138        if (!mInitialized) {
139            uint8_t *vol_data[1];
140            int32_t vol_size = 0;
141
142            vol_data[0] = NULL;
143
144            if (inHeader->nFlags & OMX_BUFFERFLAG_CODECCONFIG) {
145                vol_data[0] = bitstream;
146                vol_size = inHeader->nFilledLen;
147            }
148
149            MP4DecodingMode mode =
150                (mMode == MODE_MPEG4) ? MPEG4_MODE : H263_MODE;
151
152            Bool success = PVInitVideoDecoder(
153                    mHandle, vol_data, &vol_size, 1, mWidth, mHeight, mode);
154
155            if (!success) {
156                ALOGW("PVInitVideoDecoder failed. Unsupported content?");
157
158                notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
159                mSignalledError = true;
160                return;
161            }
162
163            MP4DecodingMode actualMode = PVGetDecBitstreamMode(mHandle);
164            if (mode != actualMode) {
165                notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
166                mSignalledError = true;
167                return;
168            }
169
170            PVSetPostProcType((VideoDecControls *) mHandle, 0);
171
172            if (inHeader->nFlags & OMX_BUFFERFLAG_CODECCONFIG) {
173                inInfo->mOwnedByUs = false;
174                inQueue.erase(inQueue.begin());
175                inInfo = NULL;
176                notifyEmptyBufferDone(inHeader);
177                inHeader = NULL;
178            }
179
180            mInitialized = true;
181
182            if (mode == MPEG4_MODE && portSettingsChanged()) {
183                return;
184            }
185
186            continue;
187        }
188
189        if (!mFramesConfigured) {
190            PortInfo *port = editPortInfo(1);
191            OMX_BUFFERHEADERTYPE *outHeader = port->mBuffers.editItemAt(1).mHeader;
192
193            PVSetReferenceYUV(mHandle, outHeader->pBuffer);
194
195            mFramesConfigured = true;
196        }
197
198        uint32_t useExtTimestamp = (inHeader->nOffset == 0);
199
200        // decoder deals in ms (int32_t), OMX in us (int64_t)
201        // so use fake timestamp instead
202        uint32_t timestamp = 0xFFFFFFFF;
203        if (useExtTimestamp) {
204            mPvToOmxTimeMap.add(mPvTime, inHeader->nTimeStamp);
205            timestamp = mPvTime;
206            mPvTime++;
207        }
208
209        int32_t bufferSize = inHeader->nFilledLen;
210        int32_t tmp = bufferSize;
211
212        // The PV decoder is lying to us, sometimes it'll claim to only have
213        // consumed a subset of the buffer when it clearly consumed all of it.
214        // ignore whatever it says...
215        if (PVDecodeVideoFrame(
216                    mHandle, &bitstream, &timestamp, &tmp,
217                    &useExtTimestamp,
218                    outHeader->pBuffer) != PV_TRUE) {
219            ALOGE("failed to decode video frame.");
220
221            notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
222            mSignalledError = true;
223            return;
224        }
225
226        if (portSettingsChanged()) {
227            return;
228        }
229
230        // decoder deals in ms, OMX in us.
231        outHeader->nTimeStamp = mPvToOmxTimeMap.valueFor(timestamp);
232        mPvToOmxTimeMap.removeItem(timestamp);
233
234        inHeader->nOffset += bufferSize;
235        inHeader->nFilledLen = 0;
236        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
237            outHeader->nFlags = OMX_BUFFERFLAG_EOS;
238        } else {
239            outHeader->nFlags = 0;
240        }
241
242        if (inHeader->nFilledLen == 0) {
243            inInfo->mOwnedByUs = false;
244            inQueue.erase(inQueue.begin());
245            inInfo = NULL;
246            notifyEmptyBufferDone(inHeader);
247            inHeader = NULL;
248        }
249
250        ++mInputBufferCount;
251
252        outHeader->nOffset = 0;
253        outHeader->nFilledLen = (mWidth * mHeight * 3) / 2;
254
255        List<BufferInfo *>::iterator it = outQueue.begin();
256        while ((*it)->mHeader != outHeader) {
257            ++it;
258        }
259
260        BufferInfo *outInfo = *it;
261        outInfo->mOwnedByUs = false;
262        outQueue.erase(it);
263        outInfo = NULL;
264
265        notifyFillBufferDone(outHeader);
266        outHeader = NULL;
267
268        ++mNumSamplesOutput;
269    }
270}
271
272bool SoftMPEG4::portSettingsChanged() {
273    uint32_t disp_width, disp_height;
274    PVGetVideoDimensions(mHandle, (int32 *)&disp_width, (int32 *)&disp_height);
275
276    uint32_t buf_width, buf_height;
277    PVGetBufferDimensions(mHandle, (int32 *)&buf_width, (int32 *)&buf_height);
278
279    CHECK_LE(disp_width, buf_width);
280    CHECK_LE(disp_height, buf_height);
281
282    ALOGV("disp_width = %d, disp_height = %d, buf_width = %d, buf_height = %d",
283            disp_width, disp_height, buf_width, buf_height);
284
285    if (mCropWidth != disp_width
286            || mCropHeight != disp_height) {
287        mCropLeft = 0;
288        mCropTop = 0;
289        mCropWidth = disp_width;
290        mCropHeight = disp_height;
291
292        notify(OMX_EventPortSettingsChanged,
293               1,
294               OMX_IndexConfigCommonOutputCrop,
295               NULL);
296    }
297
298    if (buf_width != mWidth || buf_height != mHeight) {
299        mWidth = buf_width;
300        mHeight = buf_height;
301
302        updatePortDefinitions();
303
304        if (mMode == MODE_H263) {
305            PVCleanUpVideoDecoder(mHandle);
306
307            uint8_t *vol_data[1];
308            int32_t vol_size = 0;
309
310            vol_data[0] = NULL;
311            if (!PVInitVideoDecoder(
312                    mHandle, vol_data, &vol_size, 1, mWidth, mHeight,
313                    H263_MODE)) {
314                notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
315                mSignalledError = true;
316                return true;
317            }
318        }
319
320        mFramesConfigured = false;
321
322        notify(OMX_EventPortSettingsChanged, 1, 0, NULL);
323        mOutputPortSettingsChange = AWAITING_DISABLED;
324        return true;
325    }
326
327    return false;
328}
329
330void SoftMPEG4::onPortFlushCompleted(OMX_U32 portIndex) {
331    if (portIndex == 0 && mInitialized) {
332        CHECK_EQ((int)PVResetVideoDecoder(mHandle), (int)PV_TRUE);
333    }
334}
335
336void SoftMPEG4::onReset() {
337    SoftVideoDecoderOMXComponent::onReset();
338    mPvToOmxTimeMap.clear();
339    mSignalledError = false;
340    mFramesConfigured = false;
341    if (mInitialized) {
342        PVCleanUpVideoDecoder(mHandle);
343        mInitialized = false;
344    }
345}
346
347void SoftMPEG4::updatePortDefinitions() {
348    SoftVideoDecoderOMXComponent::updatePortDefinitions();
349
350    /* We have to align our width and height - this should affect stride! */
351    OMX_PARAM_PORTDEFINITIONTYPE *def = &editPortInfo(kOutputPortIndex)->mDef;
352    def->nBufferSize =
353        (((def->format.video.nFrameWidth + 15) & -16)
354            * ((def->format.video.nFrameHeight + 15) & -16) * 3) / 2;
355}
356
357}  // namespace android
358
359android::SoftOMXComponent *createSoftOMXComponent(
360        const char *name, const OMX_CALLBACKTYPE *callbacks,
361        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
362    using namespace android;
363    if (!strcmp(name, "OMX.google.h263.decoder")) {
364        return new android::SoftMPEG4(
365                name, "video_decoder.h263", OMX_VIDEO_CodingH263,
366                kH263ProfileLevels, ARRAY_SIZE(kH263ProfileLevels),
367                callbacks, appData, component);
368    } else if (!strcmp(name, "OMX.google.mpeg4.decoder")) {
369        return new android::SoftMPEG4(
370                name, "video_decoder.mpeg4", OMX_VIDEO_CodingMPEG4,
371                kM4VProfileLevels, ARRAY_SIZE(kM4VProfileLevels),
372                callbacks, appData, component);
373    } else {
374        CHECK(!"Unknown component");
375    }
376}
377
378