NuPlayerDecoder.cpp revision 9806555d3930be43e11106281dee354820ac1c88 
1/*
2 * Copyright (C) 2010 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 "NuPlayerDecoder"
19#include <utils/Log.h>
20
21#include "NuPlayerDecoder.h"
22
23#include "ESDS.h"
24
25#include <media/stagefright/foundation/ABuffer.h>
26#include <media/stagefright/foundation/ADebug.h>
27#include <media/stagefright/foundation/AMessage.h>
28#include <media/stagefright/ACodec.h>
29#include <media/stagefright/MediaDefs.h>
30#include <media/stagefright/MetaData.h>
31#include <media/stagefright/Utils.h>
32
33namespace android {
34
35NuPlayer::Decoder::Decoder(
36        const sp<AMessage> &notify,
37        const sp<NativeWindowWrapper> &nativeWindow)
38    : mNotify(notify),
39      mNativeWindow(nativeWindow) {
40}
41
42NuPlayer::Decoder::~Decoder() {
43}
44
45void NuPlayer::Decoder::configure(const sp<MetaData> &meta) {
46    CHECK(mCodec == NULL);
47
48    const char *mime;
49    CHECK(meta->findCString(kKeyMIMEType, &mime));
50
51    sp<AMessage> notifyMsg =
52        new AMessage(kWhatCodecNotify, id());
53
54    sp<AMessage> format = makeFormat(meta);
55
56    if (mNativeWindow != NULL) {
57        format->setObject("native-window", mNativeWindow);
58    }
59
60    // Current video decoders do not return from OMX_FillThisBuffer
61    // quickly, violating the OpenMAX specs, until that is remedied
62    // we need to invest in an extra looper to free the main event
63    // queue.
64    bool needDedicatedLooper = !strncasecmp(mime, "video/", 6);
65
66    mCodec = new ACodec;
67
68    if (needDedicatedLooper && mCodecLooper == NULL) {
69        mCodecLooper = new ALooper;
70        mCodecLooper->setName("NuPlayerDecoder");
71        mCodecLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
72    }
73
74    (needDedicatedLooper ? mCodecLooper : looper())->registerHandler(mCodec);
75
76    mCodec->setNotificationMessage(notifyMsg);
77    mCodec->initiateSetup(format);
78}
79
80void NuPlayer::Decoder::onMessageReceived(const sp<AMessage> &msg) {
81    switch (msg->what()) {
82        case kWhatCodecNotify:
83        {
84            int32_t what;
85            CHECK(msg->findInt32("what", &what));
86
87            if (what == ACodec::kWhatFillThisBuffer) {
88                onFillThisBuffer(msg);
89            } else {
90                sp<AMessage> notify = mNotify->dup();
91                notify->setMessage("codec-request", msg);
92                notify->post();
93            }
94            break;
95        }
96
97        default:
98            TRESPASS();
99            break;
100    }
101}
102
103sp<AMessage> NuPlayer::Decoder::makeFormat(const sp<MetaData> &meta) {
104    CHECK(mCSD.isEmpty());
105
106    sp<AMessage> msg;
107    CHECK_EQ(convertMetaDataToMessage(meta, &msg), (status_t)OK);
108
109    mCSDIndex = 0;
110    for (size_t i = 0;; ++i) {
111        sp<ABuffer> csd;
112        if (!msg->findBuffer(StringPrintf("csd-%d", i).c_str(), &csd)) {
113            break;
114        }
115
116        mCSD.push(csd);
117    }
118
119    return msg;
120}
121
122void NuPlayer::Decoder::onFillThisBuffer(const sp<AMessage> &msg) {
123    sp<AMessage> reply;
124    CHECK(msg->findMessage("reply", &reply));
125
126#if 0
127    sp<ABuffer> outBuffer;
128    CHECK(msg->findBuffer("buffer", &outBuffer));
129#else
130    sp<ABuffer> outBuffer;
131#endif
132
133    if (mCSDIndex < mCSD.size()) {
134        outBuffer = mCSD.editItemAt(mCSDIndex++);
135        outBuffer->meta()->setInt64("timeUs", 0);
136
137        reply->setBuffer("buffer", outBuffer);
138        reply->post();
139        return;
140    }
141
142    sp<AMessage> notify = mNotify->dup();
143    notify->setMessage("codec-request", msg);
144    notify->post();
145}
146
147void NuPlayer::Decoder::signalFlush() {
148    if (mCodec != NULL) {
149        mCodec->signalFlush();
150    }
151}
152
153void NuPlayer::Decoder::signalResume() {
154    if (mCodec != NULL) {
155        mCodec->signalResume();
156    }
157}
158
159void NuPlayer::Decoder::initiateShutdown() {
160    if (mCodec != NULL) {
161        mCodec->initiateShutdown();
162    }
163}
164
165}  // namespace android
166
167