SoftVPX.cpp revision bf220f3e6e799f28d1599c3c5106e9e15631a91d 
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 "SoftVPX"
19#include <utils/Log.h>
20
21#include "SoftVPX.h"
22
23#include <media/stagefright/foundation/ADebug.h>
24#include <media/stagefright/MediaDefs.h>
25
26
27namespace android {
28
29SoftVPX::SoftVPX(
30        const char *name,
31        const char *componentRole,
32        OMX_VIDEO_CODINGTYPE codingType,
33        const OMX_CALLBACKTYPE *callbacks,
34        OMX_PTR appData,
35        OMX_COMPONENTTYPE **component)
36    : SoftVideoDecoderOMXComponent(
37            name, componentRole, codingType,
38            NULL /* profileLevels */, 0 /* numProfileLevels */,
39            320 /* width */, 240 /* height */, callbacks, appData, component),
40      mMode(codingType == OMX_VIDEO_CodingVP8 ? MODE_VP8 : MODE_VP9),
41      mCtx(NULL),
42      mImg(NULL) {
43    initPorts(kNumBuffers, 768 * 1024 /* inputBufferSize */,
44            kNumBuffers,
45            codingType == OMX_VIDEO_CodingVP8 ? MEDIA_MIMETYPE_VIDEO_VP8 : MEDIA_MIMETYPE_VIDEO_VP9);
46
47    CHECK_EQ(initDecoder(), (status_t)OK);
48}
49
50SoftVPX::~SoftVPX() {
51    vpx_codec_destroy((vpx_codec_ctx_t *)mCtx);
52    delete (vpx_codec_ctx_t *)mCtx;
53    mCtx = NULL;
54}
55
56static int GetCPUCoreCount() {
57    int cpuCoreCount = 1;
58#if defined(_SC_NPROCESSORS_ONLN)
59    cpuCoreCount = sysconf(_SC_NPROCESSORS_ONLN);
60#else
61    // _SC_NPROC_ONLN must be defined...
62    cpuCoreCount = sysconf(_SC_NPROC_ONLN);
63#endif
64    CHECK(cpuCoreCount >= 1);
65    ALOGV("Number of CPU cores: %d", cpuCoreCount);
66    return cpuCoreCount;
67}
68
69status_t SoftVPX::initDecoder() {
70    mCtx = new vpx_codec_ctx_t;
71    vpx_codec_err_t vpx_err;
72    vpx_codec_dec_cfg_t cfg;
73    memset(&cfg, 0, sizeof(vpx_codec_dec_cfg_t));
74    cfg.threads = GetCPUCoreCount();
75    if ((vpx_err = vpx_codec_dec_init(
76                (vpx_codec_ctx_t *)mCtx,
77                 mMode == MODE_VP8 ? &vpx_codec_vp8_dx_algo : &vpx_codec_vp9_dx_algo,
78                 &cfg, 0))) {
79        ALOGE("on2 decoder failed to initialize. (%d)", vpx_err);
80        return UNKNOWN_ERROR;
81    }
82
83    return OK;
84}
85
86void SoftVPX::onQueueFilled(OMX_U32 /* portIndex */) {
87    if (mOutputPortSettingsChange != NONE) {
88        return;
89    }
90
91    List<BufferInfo *> &inQueue = getPortQueue(0);
92    List<BufferInfo *> &outQueue = getPortQueue(1);
93    bool EOSseen = false;
94
95    while (!inQueue.empty() && !outQueue.empty()) {
96        BufferInfo *inInfo = *inQueue.begin();
97        OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
98
99        BufferInfo *outInfo = *outQueue.begin();
100        OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
101
102        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
103            EOSseen = true;
104            if (inHeader->nFilledLen == 0) {
105                inQueue.erase(inQueue.begin());
106                inInfo->mOwnedByUs = false;
107                notifyEmptyBufferDone(inHeader);
108
109                outHeader->nFilledLen = 0;
110                outHeader->nFlags = OMX_BUFFERFLAG_EOS;
111
112                outQueue.erase(outQueue.begin());
113                outInfo->mOwnedByUs = false;
114                notifyFillBufferDone(outHeader);
115                return;
116            }
117        }
118
119        if (mImg == NULL) {
120            if (vpx_codec_decode(
121                        (vpx_codec_ctx_t *)mCtx,
122                        inHeader->pBuffer + inHeader->nOffset,
123                        inHeader->nFilledLen,
124                        NULL,
125                        0)) {
126                ALOGE("on2 decoder failed to decode frame.");
127
128                notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL);
129                return;
130            }
131            vpx_codec_iter_t iter = NULL;
132            mImg = vpx_codec_get_frame((vpx_codec_ctx_t *)mCtx, &iter);
133        }
134
135        if (mImg != NULL) {
136            CHECK_EQ(mImg->fmt, IMG_FMT_I420);
137
138            uint32_t width = mImg->d_w;
139            uint32_t height = mImg->d_h;
140            bool portWillReset = false;
141            handlePortSettingsChange(&portWillReset, width, height);
142            if (portWillReset) {
143                return;
144            }
145
146            outHeader->nOffset = 0;
147            outHeader->nFilledLen = (width * height * 3) / 2;
148            outHeader->nFlags = EOSseen ? OMX_BUFFERFLAG_EOS : 0;
149            outHeader->nTimeStamp = inHeader->nTimeStamp;
150
151            uint8_t *dst = outHeader->pBuffer;
152            const uint8_t *srcY = (const uint8_t *)mImg->planes[PLANE_Y];
153            const uint8_t *srcU = (const uint8_t *)mImg->planes[PLANE_U];
154            const uint8_t *srcV = (const uint8_t *)mImg->planes[PLANE_V];
155            size_t srcYStride = mImg->stride[PLANE_Y];
156            size_t srcUStride = mImg->stride[PLANE_U];
157            size_t srcVStride = mImg->stride[PLANE_V];
158            copyYV12FrameToOutputBuffer(dst, srcY, srcU, srcV, srcYStride, srcUStride, srcVStride);
159
160            mImg = NULL;
161            outInfo->mOwnedByUs = false;
162            outQueue.erase(outQueue.begin());
163            outInfo = NULL;
164            notifyFillBufferDone(outHeader);
165            outHeader = NULL;
166        }
167
168        inInfo->mOwnedByUs = false;
169        inQueue.erase(inQueue.begin());
170        inInfo = NULL;
171        notifyEmptyBufferDone(inHeader);
172        inHeader = NULL;
173    }
174}
175
176}  // namespace android
177
178android::SoftOMXComponent *createSoftOMXComponent(
179        const char *name, const OMX_CALLBACKTYPE *callbacks,
180        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
181    if (!strcmp(name, "OMX.google.vp8.decoder")) {
182        return new android::SoftVPX(
183                name, "video_decoder.vp8", OMX_VIDEO_CodingVP8,
184                callbacks, appData, component);
185    } else if (!strcmp(name, "OMX.google.vp9.decoder")) {
186        return new android::SoftVPX(
187                name, "video_decoder.vp9", OMX_VIDEO_CodingVP9,
188                callbacks, appData, component);
189    } else {
190        CHECK(!"Unknown component");
191    }
192}
193