record.cpp revision f74c8f9ee26c91b129fe9a1acc254471a9f30cb1 
1/*
2 * Copyright (C) 2009 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#include "SineSource.h"
18
19#include <binder/ProcessState.h>
20#include <media/stagefright/AudioPlayer.h>
21#include <media/stagefright/CameraSource.h>
22#include <media/stagefright/FileSource.h>
23#include <media/stagefright/MediaBufferGroup.h>
24#include <media/stagefright/MediaDebug.h>
25#include <media/stagefright/MediaDefs.h>
26#include <media/stagefright/MetaData.h>
27#include <media/stagefright/MediaExtractor.h>
28#include <media/stagefright/MPEG4Writer.h>
29#include <media/stagefright/OMXClient.h>
30#include <media/stagefright/OMXCodec.h>
31#include <media/MediaPlayerInterface.h>
32
33using namespace android;
34
35static const int32_t kFramerate = 24;  // fps
36static const int32_t kIFramesIntervalSec = 1;
37static const int32_t kVideoBitRate = 512 * 1024;
38static const int32_t kAudioBitRate = 12200;
39static const int32_t kColorFormat = OMX_COLOR_FormatYUV420SemiPlanar;
40static const int64_t kDurationUs = 10000000LL;  // 10 seconds
41
42#if 1
43class DummySource : public MediaSource {
44
45public:
46    DummySource(int width, int height)
47        : mWidth(width),
48          mHeight(height),
49          mSize((width * height * 3) / 2) {
50        mGroup.add_buffer(new MediaBuffer(mSize));
51    }
52
53    virtual sp<MetaData> getFormat() {
54        sp<MetaData> meta = new MetaData;
55        meta->setInt32(kKeyWidth, mWidth);
56        meta->setInt32(kKeyHeight, mHeight);
57        meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
58
59        return meta;
60    }
61
62    virtual status_t start(MetaData *params) {
63        mNumFramesOutput = 0;
64        return OK;
65    }
66
67    virtual status_t stop() {
68        return OK;
69    }
70
71    virtual status_t read(
72            MediaBuffer **buffer, const MediaSource::ReadOptions *options) {
73        if (mNumFramesOutput == kFramerate * 10) {
74            // Stop returning data after 10 secs.
75            return ERROR_END_OF_STREAM;
76        }
77
78        // printf("DummySource::read\n");
79        status_t err = mGroup.acquire_buffer(buffer);
80        if (err != OK) {
81            return err;
82        }
83
84        char x = (char)((double)rand() / RAND_MAX * 255);
85        memset((*buffer)->data(), x, mSize);
86        (*buffer)->set_range(0, mSize);
87        (*buffer)->meta_data()->clear();
88        (*buffer)->meta_data()->setInt64(
89                kKeyTime, (mNumFramesOutput * 1000000) / kFramerate);
90        ++mNumFramesOutput;
91
92        // printf("DummySource::read - returning buffer\n");
93        // LOGI("DummySource::read - returning buffer");
94        return OK;
95    }
96
97protected:
98    virtual ~DummySource() {}
99
100private:
101    MediaBufferGroup mGroup;
102    int mWidth, mHeight;
103    size_t mSize;
104    int64_t mNumFramesOutput;;
105
106    DummySource(const DummySource &);
107    DummySource &operator=(const DummySource &);
108};
109
110sp<MediaSource> createSource(const char *filename) {
111    sp<MediaSource> source;
112
113    sp<MediaExtractor> extractor =
114        MediaExtractor::Create(new FileSource(filename));
115    if (extractor == NULL) {
116        return NULL;
117    }
118
119    size_t num_tracks = extractor->countTracks();
120
121    sp<MetaData> meta;
122    for (size_t i = 0; i < num_tracks; ++i) {
123        meta = extractor->getTrackMetaData(i);
124        CHECK(meta.get() != NULL);
125
126        const char *mime;
127        if (!meta->findCString(kKeyMIMEType, &mime)) {
128            continue;
129        }
130
131        if (strncasecmp(mime, "video/", 6)) {
132            continue;
133        }
134
135        source = extractor->getTrack(i);
136        break;
137    }
138
139    return source;
140}
141
142int main(int argc, char **argv) {
143    android::ProcessState::self()->startThreadPool();
144
145    DataSource::RegisterDefaultSniffers();
146
147#if 1
148    if (argc != 2) {
149        fprintf(stderr, "usage: %s filename\n", argv[0]);
150        return 1;
151    }
152
153    OMXClient client;
154    CHECK_EQ(client.connect(), OK);
155
156#if 0
157    sp<MediaSource> source = createSource(argv[1]);
158
159    if (source == NULL) {
160        fprintf(stderr, "Unable to find a suitable video track.\n");
161        return 1;
162    }
163
164    sp<MetaData> meta = source->getFormat();
165
166    sp<MediaSource> decoder = OMXCodec::Create(
167            client.interface(), meta, false /* createEncoder */, source);
168
169    int width, height;
170    bool success = meta->findInt32(kKeyWidth, &width);
171    success = success && meta->findInt32(kKeyHeight, &height);
172    CHECK(success);
173#else
174    int width = 720;
175    int height = 480;
176    sp<MediaSource> decoder = new DummySource(width, height);
177#endif
178
179    sp<MetaData> enc_meta = new MetaData;
180    // enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
181    // enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
182    enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
183    enc_meta->setInt32(kKeyWidth, width);
184    enc_meta->setInt32(kKeyHeight, height);
185    enc_meta->setInt32(kKeySampleRate, kFramerate);
186    enc_meta->setInt32(kKeyBitRate, kVideoBitRate);
187    enc_meta->setInt32(kKeyStride, width);
188    enc_meta->setInt32(kKeySliceHeight, height);
189    enc_meta->setInt32(kKeyIFramesInterval, kIFramesIntervalSec);
190    enc_meta->setInt32(kKeyColorFormat, kColorFormat);
191
192    sp<MediaSource> encoder =
193        OMXCodec::Create(
194                client.interface(), enc_meta, true /* createEncoder */, decoder);
195
196#if 1
197    sp<MPEG4Writer> writer = new MPEG4Writer("/sdcard/output.mp4");
198    writer->addSource(encoder);
199    writer->setMaxFileDuration(kDurationUs);
200    writer->start();
201    while (!writer->reachedEOS()) {
202        fprintf(stderr, ".");
203        usleep(100000);
204    }
205    writer->stop();
206#else
207    encoder->start();
208
209    MediaBuffer *buffer;
210    while (encoder->read(&buffer) == OK) {
211        printf(".");
212        fflush(stdout);
213        int32_t isSync;
214        if (!buffer->meta_data()->findInt32(kKeyIsSyncFrame, &isSync)) {
215            isSync = false;
216        }
217
218        printf("got an output frame of size %d%s\n", buffer->range_length(),
219               isSync ? " (SYNC)" : "");
220
221        buffer->release();
222        buffer = NULL;
223    }
224
225    encoder->stop();
226#endif
227
228    printf("$\n");
229    client.disconnect();
230#endif
231
232#if 0
233    CameraSource *source = CameraSource::Create();
234    source->start();
235
236    printf("source = %p\n", source);
237
238    for (int i = 0; i < 100; ++i) {
239        MediaBuffer *buffer;
240        status_t err = source->read(&buffer);
241        CHECK_EQ(err, OK);
242
243        printf("got a frame, data=%p, size=%d\n",
244               buffer->data(), buffer->range_length());
245
246        buffer->release();
247        buffer = NULL;
248    }
249
250    source->stop();
251
252    delete source;
253    source = NULL;
254#endif
255
256    return 0;
257}
258#else
259
260int main(int argc, char **argv) {
261    android::ProcessState::self()->startThreadPool();
262
263    OMXClient client;
264    CHECK_EQ(client.connect(), OK);
265
266    const int32_t kSampleRate = 22050;
267    const int32_t kNumChannels = 2;
268    sp<MediaSource> audioSource = new SineSource(kSampleRate, kNumChannels);
269
270#if 0
271    sp<MediaPlayerBase::AudioSink> audioSink;
272    AudioPlayer *player = new AudioPlayer(audioSink);
273    player->setSource(audioSource);
274    player->start();
275
276    sleep(10);
277
278    player->stop();
279#endif
280
281    sp<MetaData> encMeta = new MetaData;
282    encMeta->setCString(kKeyMIMEType,
283            1 ? MEDIA_MIMETYPE_AUDIO_AMR_WB : MEDIA_MIMETYPE_AUDIO_AAC);
284    encMeta->setInt32(kKeySampleRate, kSampleRate);
285    encMeta->setInt32(kKeyChannelCount, kNumChannels);
286    encMeta->setInt32(kKeyMaxInputSize, 8192);
287    encMeta->setInt32(kKeyBitRate, kAudioBitRate);
288
289    sp<MediaSource> encoder =
290        OMXCodec::Create(client.interface(), encMeta, true, audioSource);
291
292    encoder->start();
293
294    int32_t n = 0;
295    status_t err;
296    MediaBuffer *buffer;
297    while ((err = encoder->read(&buffer)) == OK) {
298        printf(".");
299        fflush(stdout);
300
301        buffer->release();
302        buffer = NULL;
303
304        if (++n == 100) {
305            break;
306        }
307    }
308    printf("$\n");
309
310    encoder->stop();
311
312    client.disconnect();
313
314    return 0;
315}
316#endif
317