record.cpp revision 03b268eac37ca2589bfff0bf58daf79d29cc14f4 
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
35#if 1
36class DummySource : public MediaSource {
37    static const int32_t kFramerate = 24;  // fps
38
39public:
40    DummySource(int width, int height)
41        : mWidth(width),
42          mHeight(height),
43          mSize((width * height * 3) / 2) {
44        mGroup.add_buffer(new MediaBuffer(mSize));
45    }
46
47    virtual sp<MetaData> getFormat() {
48        sp<MetaData> meta = new MetaData;
49        meta->setInt32(kKeyWidth, mWidth);
50        meta->setInt32(kKeyHeight, mHeight);
51        meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
52
53        return meta;
54    }
55
56    virtual status_t start(MetaData *params) {
57        mNumFramesOutput = 0;
58        return OK;
59    }
60
61    virtual status_t stop() {
62        return OK;
63    }
64
65    virtual status_t read(
66            MediaBuffer **buffer, const MediaSource::ReadOptions *options) {
67        if (mNumFramesOutput == kFramerate * 10) {
68            // Stop returning data after 10 secs.
69            return ERROR_END_OF_STREAM;
70        }
71
72        // printf("DummySource::read\n");
73        status_t err = mGroup.acquire_buffer(buffer);
74        if (err != OK) {
75            return err;
76        }
77
78        char x = (char)((double)rand() / RAND_MAX * 255);
79        memset((*buffer)->data(), x, mSize);
80        (*buffer)->set_range(0, mSize);
81        (*buffer)->meta_data()->clear();
82        (*buffer)->meta_data()->setInt64(
83                kKeyTime, (mNumFramesOutput * 1000000) / kFramerate);
84        ++mNumFramesOutput;
85
86        // printf("DummySource::read - returning buffer\n");
87        // LOGI("DummySource::read - returning buffer");
88        return OK;
89    }
90
91protected:
92    virtual ~DummySource() {}
93
94private:
95    MediaBufferGroup mGroup;
96    int mWidth, mHeight;
97    size_t mSize;
98    int64_t mNumFramesOutput;;
99
100    DummySource(const DummySource &);
101    DummySource &operator=(const DummySource &);
102};
103
104sp<MediaSource> createSource(const char *filename) {
105    sp<MediaSource> source;
106
107    sp<MediaExtractor> extractor =
108        MediaExtractor::Create(new FileSource(filename));
109    if (extractor == NULL) {
110        return NULL;
111    }
112
113    size_t num_tracks = extractor->countTracks();
114
115    sp<MetaData> meta;
116    for (size_t i = 0; i < num_tracks; ++i) {
117        meta = extractor->getTrackMetaData(i);
118        CHECK(meta.get() != NULL);
119
120        const char *mime;
121        if (!meta->findCString(kKeyMIMEType, &mime)) {
122            continue;
123        }
124
125        if (strncasecmp(mime, "video/", 6)) {
126            continue;
127        }
128
129        source = extractor->getTrack(i);
130        break;
131    }
132
133    return source;
134}
135
136int main(int argc, char **argv) {
137    android::ProcessState::self()->startThreadPool();
138
139    DataSource::RegisterDefaultSniffers();
140
141#if 1
142    if (argc != 2) {
143        fprintf(stderr, "usage: %s filename\n", argv[0]);
144        return 1;
145    }
146
147    OMXClient client;
148    CHECK_EQ(client.connect(), OK);
149
150#if 0
151    sp<MediaSource> source = createSource(argv[1]);
152
153    if (source == NULL) {
154        fprintf(stderr, "Unable to find a suitable video track.\n");
155        return 1;
156    }
157
158    sp<MetaData> meta = source->getFormat();
159
160    sp<MediaSource> decoder = OMXCodec::Create(
161            client.interface(), meta, false /* createEncoder */, source);
162
163    int width, height;
164    bool success = meta->findInt32(kKeyWidth, &width);
165    success = success && meta->findInt32(kKeyHeight, &height);
166    CHECK(success);
167#else
168    int width = 720;
169    int height = 480;
170    sp<MediaSource> decoder = new DummySource(width, height);
171#endif
172
173    sp<MetaData> enc_meta = new MetaData;
174    // enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
175    // enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
176    enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
177    enc_meta->setInt32(kKeyWidth, width);
178    enc_meta->setInt32(kKeyHeight, height);
179
180    sp<MediaSource> encoder =
181        OMXCodec::Create(
182                client.interface(), enc_meta, true /* createEncoder */, decoder);
183
184#if 1
185    sp<MPEG4Writer> writer = new MPEG4Writer("/sdcard/output.mp4");
186    writer->addSource(encoder);
187    writer->start();
188    while (!writer->reachedEOS()) {
189        usleep(100000);
190    }
191    writer->stop();
192#else
193    encoder->start();
194
195    MediaBuffer *buffer;
196    while (encoder->read(&buffer) == OK) {
197        int32_t isSync;
198        if (!buffer->meta_data()->findInt32(kKeyIsSyncFrame, &isSync)) {
199            isSync = false;
200        }
201
202        printf("got an output frame of size %d%s\n", buffer->range_length(),
203               isSync ? " (SYNC)" : "");
204
205        buffer->release();
206        buffer = NULL;
207    }
208
209    encoder->stop();
210#endif
211
212    client.disconnect();
213#endif
214
215#if 0
216    CameraSource *source = CameraSource::Create();
217    source->start();
218
219    printf("source = %p\n", source);
220
221    for (int i = 0; i < 100; ++i) {
222        MediaBuffer *buffer;
223        status_t err = source->read(&buffer);
224        CHECK_EQ(err, OK);
225
226        printf("got a frame, data=%p, size=%d\n",
227               buffer->data(), buffer->range_length());
228
229        buffer->release();
230        buffer = NULL;
231    }
232
233    source->stop();
234
235    delete source;
236    source = NULL;
237#endif
238
239    return 0;
240}
241#else
242
243int main(int argc, char **argv) {
244    android::ProcessState::self()->startThreadPool();
245
246    OMXClient client;
247    CHECK_EQ(client.connect(), OK);
248
249    const int32_t kSampleRate = 22050;
250    const int32_t kNumChannels = 2;
251    sp<MediaSource> audioSource = new SineSource(kSampleRate, kNumChannels);
252
253#if 0
254    sp<MediaPlayerBase::AudioSink> audioSink;
255    AudioPlayer *player = new AudioPlayer(audioSink);
256    player->setSource(audioSource);
257    player->start();
258
259    sleep(10);
260
261    player->stop();
262#endif
263
264    sp<MetaData> encMeta = new MetaData;
265    encMeta->setCString(kKeyMIMEType,
266            1 ? MEDIA_MIMETYPE_AUDIO_AMR_WB : MEDIA_MIMETYPE_AUDIO_AAC);
267    encMeta->setInt32(kKeySampleRate, kSampleRate);
268    encMeta->setInt32(kKeyChannelCount, kNumChannels);
269    encMeta->setInt32(kKeyMaxInputSize, 8192);
270
271    sp<MediaSource> encoder =
272        OMXCodec::Create(client.interface(), encMeta, true, audioSource);
273
274    encoder->start();
275
276    int32_t n = 0;
277    status_t err;
278    MediaBuffer *buffer;
279    while ((err = encoder->read(&buffer)) == OK) {
280        printf(".");
281        fflush(stdout);
282
283        buffer->release();
284        buffer = NULL;
285
286        if (++n == 100) {
287            break;
288        }
289    }
290    printf("$\n");
291
292    encoder->stop();
293
294    client.disconnect();
295
296    return 0;
297}
298#endif
299