SoftMPEG4.cpp revision e75d53abb2f986cf07476d1430eb9981a79b2d2f 
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        OMX_U32 frameSize = (mWidth * mHeight * 3) / 2;
213        if (outHeader->nAllocLen < frameSize) {
214            android_errorWriteLog(0x534e4554, "27833616");
215            ALOGE("Insufficient output buffer size");
216            notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
217            mSignalledError = true;
218            return;
219        }
220        // The PV decoder is lying to us, sometimes it'll claim to only have
221        // consumed a subset of the buffer when it clearly consumed all of it.
222        // ignore whatever it says...
223        if (PVDecodeVideoFrame(
224                    mHandle, &bitstream, &timestamp, &tmp,
225                    &useExtTimestamp,
226                    outHeader->pBuffer) != PV_TRUE) {
227            ALOGE("failed to decode video frame.");
228
229            notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
230            mSignalledError = true;
231            return;
232        }
233
234        if (portSettingsChanged()) {
235            return;
236        }
237
238        // decoder deals in ms, OMX in us.
239        outHeader->nTimeStamp = mPvToOmxTimeMap.valueFor(timestamp);
240        mPvToOmxTimeMap.removeItem(timestamp);
241
242        inHeader->nOffset += bufferSize;
243        inHeader->nFilledLen = 0;
244        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
245            outHeader->nFlags = OMX_BUFFERFLAG_EOS;
246        } else {
247            outHeader->nFlags = 0;
248        }
249
250        if (inHeader->nFilledLen == 0) {
251            inInfo->mOwnedByUs = false;
252            inQueue.erase(inQueue.begin());
253            inInfo = NULL;
254            notifyEmptyBufferDone(inHeader);
255            inHeader = NULL;
256        }
257
258        ++mInputBufferCount;
259
260        outHeader->nOffset = 0;
261        outHeader->nFilledLen = frameSize;
262
263        List<BufferInfo *>::iterator it = outQueue.begin();
264        while ((*it)->mHeader != outHeader) {
265            ++it;
266        }
267
268        BufferInfo *outInfo = *it;
269        outInfo->mOwnedByUs = false;
270        outQueue.erase(it);
271        outInfo = NULL;
272
273        notifyFillBufferDone(outHeader);
274        outHeader = NULL;
275
276        ++mNumSamplesOutput;
277    }
278}
279
280bool SoftMPEG4::portSettingsChanged() {
281    uint32_t disp_width, disp_height;
282    PVGetVideoDimensions(mHandle, (int32 *)&disp_width, (int32 *)&disp_height);
283
284    uint32_t buf_width, buf_height;
285    PVGetBufferDimensions(mHandle, (int32 *)&buf_width, (int32 *)&buf_height);
286
287    CHECK_LE(disp_width, buf_width);
288    CHECK_LE(disp_height, buf_height);
289
290    ALOGV("disp_width = %d, disp_height = %d, buf_width = %d, buf_height = %d",
291            disp_width, disp_height, buf_width, buf_height);
292
293    if (mCropWidth != disp_width
294            || mCropHeight != disp_height) {
295        mCropLeft = 0;
296        mCropTop = 0;
297        mCropWidth = disp_width;
298        mCropHeight = disp_height;
299
300        notify(OMX_EventPortSettingsChanged,
301               1,
302               OMX_IndexConfigCommonOutputCrop,
303               NULL);
304    }
305
306    if (buf_width != mWidth || buf_height != mHeight) {
307        mWidth = buf_width;
308        mHeight = buf_height;
309
310        updatePortDefinitions();
311
312        if (mMode == MODE_H263) {
313            PVCleanUpVideoDecoder(mHandle);
314
315            uint8_t *vol_data[1];
316            int32_t vol_size = 0;
317
318            vol_data[0] = NULL;
319            if (!PVInitVideoDecoder(
320                    mHandle, vol_data, &vol_size, 1, mWidth, mHeight,
321                    H263_MODE)) {
322                notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
323                mSignalledError = true;
324                return true;
325            }
326        }
327
328        mFramesConfigured = false;
329
330        notify(OMX_EventPortSettingsChanged, 1, 0, NULL);
331        mOutputPortSettingsChange = AWAITING_DISABLED;
332        return true;
333    }
334
335    return false;
336}
337
338void SoftMPEG4::onPortFlushCompleted(OMX_U32 portIndex) {
339    if (portIndex == 0 && mInitialized) {
340        CHECK_EQ((int)PVResetVideoDecoder(mHandle), (int)PV_TRUE);
341    }
342}
343
344void SoftMPEG4::onReset() {
345    SoftVideoDecoderOMXComponent::onReset();
346    mPvToOmxTimeMap.clear();
347    mSignalledError = false;
348    mFramesConfigured = false;
349    if (mInitialized) {
350        PVCleanUpVideoDecoder(mHandle);
351        mInitialized = false;
352    }
353}
354
355void SoftMPEG4::updatePortDefinitions() {
356    SoftVideoDecoderOMXComponent::updatePortDefinitions();
357
358    /* We have to align our width and height - this should affect stride! */
359    OMX_PARAM_PORTDEFINITIONTYPE *def = &editPortInfo(kOutputPortIndex)->mDef;
360    def->nBufferSize =
361        (((def->format.video.nFrameWidth + 15) & -16)
362            * ((def->format.video.nFrameHeight + 15) & -16) * 3) / 2;
363}
364
365}  // namespace android
366
367android::SoftOMXComponent *createSoftOMXComponent(
368        const char *name, const OMX_CALLBACKTYPE *callbacks,
369        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
370    using namespace android;
371    if (!strcmp(name, "OMX.google.h263.decoder")) {
372        return new android::SoftMPEG4(
373                name, "video_decoder.h263", OMX_VIDEO_CodingH263,
374                kH263ProfileLevels, ARRAY_SIZE(kH263ProfileLevels),
375                callbacks, appData, component);
376    } else if (!strcmp(name, "OMX.google.mpeg4.decoder")) {
377        return new android::SoftMPEG4(
378                name, "video_decoder.mpeg4", OMX_VIDEO_CodingMPEG4,
379                kM4VProfileLevels, ARRAY_SIZE(kM4VProfileLevels),
380                callbacks, appData, component);
381    } else {
382        CHECK(!"Unknown component");
383    }
384}
385
386