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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "NuPlayerDecoder"
#include <utils/Log.h>
#include "NuPlayerDecoder.h"
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/AMessage.h>
#include <media/stagefright/ACodec.h>
#include <media/stagefright/MediaDefs.h>
namespace android {
NuPlayer::Decoder::Decoder(
const sp<AMessage> ¬ify,
const sp<NativeWindowWrapper> &nativeWindow)
: mNotify(notify),
mNativeWindow(nativeWindow) {
}
NuPlayer::Decoder::~Decoder() {
}
void NuPlayer::Decoder::configure(const sp<AMessage> &format) {
CHECK(mCodec == NULL);
AString mime;
CHECK(format->findString("mime", &mime));
sp<AMessage> notifyMsg =
new AMessage(kWhatCodecNotify, id());
mCSDIndex = 0;
for (size_t i = 0;; ++i) {
sp<ABuffer> csd;
if (!format->findBuffer(StringPrintf("csd-%d", i).c_str(), &csd)) {
break;
}
mCSD.push(csd);
}
if (mNativeWindow != NULL) {
format->setObject("native-window", mNativeWindow);
}
// Current video decoders do not return from OMX_FillThisBuffer
// quickly, violating the OpenMAX specs, until that is remedied
// we need to invest in an extra looper to free the main event
// queue.
bool needDedicatedLooper = !strncasecmp(mime.c_str(), "video/", 6);
mFormat = format;
mCodec = new ACodec;
if (needDedicatedLooper && mCodecLooper == NULL) {
mCodecLooper = new ALooper;
mCodecLooper->setName("NuPlayerDecoder");
mCodecLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
}
(needDedicatedLooper ? mCodecLooper : looper())->registerHandler(mCodec);
mCodec->setNotificationMessage(notifyMsg);
mCodec->initiateSetup(format);
}
void NuPlayer::Decoder::onMessageReceived(const sp<AMessage> &msg) {
switch (msg->what()) {
case kWhatCodecNotify:
{
int32_t what;
CHECK(msg->findInt32("what", &what));
if (what == ACodec::kWhatFillThisBuffer) {
onFillThisBuffer(msg);
} else {
sp<AMessage> notify = mNotify->dup();
notify->setMessage("codec-request", msg);
notify->post();
}
break;
}
default:
TRESPASS();
break;
}
}
void NuPlayer::Decoder::onFillThisBuffer(const sp<AMessage> &msg) {
sp<AMessage> reply;
CHECK(msg->findMessage("reply", &reply));
#if 0
sp<ABuffer> outBuffer;
CHECK(msg->findBuffer("buffer", &outBuffer));
#else
sp<ABuffer> outBuffer;
#endif
if (mCSDIndex < mCSD.size()) {
outBuffer = mCSD.editItemAt(mCSDIndex++);
outBuffer->meta()->setInt64("timeUs", 0);
reply->setBuffer("buffer", outBuffer);
reply->post();
return;
}
sp<AMessage> notify = mNotify->dup();
notify->setMessage("codec-request", msg);
notify->post();
}
void NuPlayer::Decoder::signalFlush() {
if (mCodec != NULL) {
mCodec->signalFlush();
}
}
void NuPlayer::Decoder::signalResume() {
if (mCodec != NULL) {
mCodec->signalResume();
}
}
void NuPlayer::Decoder::initiateShutdown() {
if (mCodec != NULL) {
mCodec->initiateShutdown();
}
}
bool NuPlayer::Decoder::supportsSeamlessAudioFormatChange(const sp<AMessage> &targetFormat) const {
if (targetFormat == NULL) {
return true;
}
AString mime;
if (!targetFormat->findString("mime", &mime)) {
return false;
}
if (!strcasecmp(mime.c_str(), MEDIA_MIMETYPE_AUDIO_AAC)) {
// field-by-field comparison
const char * keys[] = { "channel-count", "sample-rate", "is-adts" };
for (unsigned int i = 0; i < sizeof(keys) / sizeof(keys[0]); i++) {
int32_t oldVal, newVal;
if (!mFormat->findInt32(keys[i], &oldVal) || !targetFormat->findInt32(keys[i], &newVal)
|| oldVal != newVal) {
return false;
}
}
sp<ABuffer> oldBuf, newBuf;
if (mFormat->findBuffer("csd-0", &oldBuf) && targetFormat->findBuffer("csd-0", &newBuf)) {
if (oldBuf->size() != newBuf->size()) {
return false;
}
return !memcmp(oldBuf->data(), newBuf->data(), oldBuf->size());
}
}
return false;
}
bool NuPlayer::Decoder::supportsSeamlessFormatChange(const sp<AMessage> &targetFormat) const {
if (mFormat == NULL) {
return false;
}
if (targetFormat == NULL) {
return true;
}
AString oldMime, newMime;
if (!mFormat->findString("mime", &oldMime)
|| !targetFormat->findString("mime", &newMime)
|| !(oldMime == newMime)) {
return false;
}
bool audio = !strncasecmp(oldMime.c_str(), "audio/", strlen("audio/"));
bool seamless;
if (audio) {
seamless = supportsSeamlessAudioFormatChange(targetFormat);
} else {
seamless = mCodec != NULL && mCodec->isConfiguredForAdaptivePlayback();
}
ALOGV("%s seamless support for %s", seamless ? "yes" : "no", oldMime.c_str());
return seamless;
}
} // namespace android
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