Initial support for a true streaming player for mpeg2 transport streams.
Change-Id: I153eec439d260a5524b21270e16d36940ec3161a
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
new file mode 100644
index 0000000..d1ed222
--- /dev/null
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
@@ -0,0 +1,286 @@
+/*
+ * 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 "DecoderWrapper.h"
+#include "ESDS.h"
+
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/ACodec.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MetaData.h>
+#include <media/stagefright/Utils.h>
+#include <surfaceflinger/Surface.h>
+
+namespace android {
+
+NuPlayer::Decoder::Decoder(
+ const sp<AMessage> ¬ify, const sp<Surface> &surface)
+ : mNotify(notify),
+ mSurface(surface) {
+}
+
+NuPlayer::Decoder::~Decoder() {
+}
+
+void NuPlayer::Decoder::configure(const sp<MetaData> &meta) {
+ CHECK(mCodec == NULL);
+ CHECK(mWrapper == NULL);
+
+ const char *mime;
+ CHECK(meta->findCString(kKeyMIMEType, &mime));
+
+ sp<AMessage> notifyMsg =
+ new AMessage(kWhatCodecNotify, id());
+
+ sp<AMessage> format = makeFormat(meta);
+
+ if (mSurface != NULL) {
+ format->setObject("surface", mSurface);
+ }
+
+ if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) {
+ mWrapper = new DecoderWrapper;
+ looper()->registerHandler(mWrapper);
+
+ mWrapper->setNotificationMessage(notifyMsg);
+ mWrapper->initiateSetup(format);
+ } else {
+ mCodec = new ACodec;
+ 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;
+ }
+}
+
+sp<AMessage> NuPlayer::Decoder::makeFormat(const sp<MetaData> &meta) {
+ CHECK(mCSD.isEmpty());
+
+ const char *mime;
+ CHECK(meta->findCString(kKeyMIMEType, &mime));
+
+ sp<AMessage> msg = new AMessage;
+ msg->setString("mime", mime);
+
+ if (!strncasecmp("video/", mime, 6)) {
+ int32_t width, height;
+ CHECK(meta->findInt32(kKeyWidth, &width));
+ CHECK(meta->findInt32(kKeyHeight, &height));
+
+ msg->setInt32("width", width);
+ msg->setInt32("height", height);
+ } else {
+ CHECK(!strncasecmp("audio/", mime, 6));
+
+ int32_t numChannels, sampleRate;
+ CHECK(meta->findInt32(kKeyChannelCount, &numChannels));
+ CHECK(meta->findInt32(kKeySampleRate, &sampleRate));
+
+ msg->setInt32("channel-count", numChannels);
+ msg->setInt32("sample-rate", sampleRate);
+ }
+
+ uint32_t type;
+ const void *data;
+ size_t size;
+ if (meta->findData(kKeyAVCC, &type, &data, &size)) {
+ // Parse the AVCDecoderConfigurationRecord
+
+ const uint8_t *ptr = (const uint8_t *)data;
+
+ CHECK(size >= 7);
+ CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1
+ uint8_t profile = ptr[1];
+ uint8_t level = ptr[3];
+
+ // There is decodable content out there that fails the following
+ // assertion, let's be lenient for now...
+ // CHECK((ptr[4] >> 2) == 0x3f); // reserved
+
+ size_t lengthSize = 1 + (ptr[4] & 3);
+
+ // commented out check below as H264_QVGA_500_NO_AUDIO.3gp
+ // violates it...
+ // CHECK((ptr[5] >> 5) == 7); // reserved
+
+ size_t numSeqParameterSets = ptr[5] & 31;
+
+ ptr += 6;
+ size -= 6;
+
+ sp<ABuffer> buffer = new ABuffer(1024);
+ buffer->setRange(0, 0);
+
+ for (size_t i = 0; i < numSeqParameterSets; ++i) {
+ CHECK(size >= 2);
+ size_t length = U16_AT(ptr);
+
+ ptr += 2;
+ size -= 2;
+
+ CHECK(size >= length);
+
+ memcpy(buffer->data() + buffer->size(), "\x00\x00\x00\x01", 4);
+ memcpy(buffer->data() + buffer->size() + 4, ptr, length);
+ buffer->setRange(0, buffer->size() + 4 + length);
+
+ ptr += length;
+ size -= length;
+ }
+
+ buffer->meta()->setInt32("csd", true);
+ mCSD.push(buffer);
+
+ buffer = new ABuffer(1024);
+ buffer->setRange(0, 0);
+
+ CHECK(size >= 1);
+ size_t numPictureParameterSets = *ptr;
+ ++ptr;
+ --size;
+
+ for (size_t i = 0; i < numPictureParameterSets; ++i) {
+ CHECK(size >= 2);
+ size_t length = U16_AT(ptr);
+
+ ptr += 2;
+ size -= 2;
+
+ CHECK(size >= length);
+
+ memcpy(buffer->data() + buffer->size(), "\x00\x00\x00\x01", 4);
+ memcpy(buffer->data() + buffer->size() + 4, ptr, length);
+ buffer->setRange(0, buffer->size() + 4 + length);
+
+ ptr += length;
+ size -= length;
+ }
+
+ buffer->meta()->setInt32("csd", true);
+ mCSD.push(buffer);
+
+ msg->setObject("csd", buffer);
+ } else if (meta->findData(kKeyESDS, &type, &data, &size)) {
+#if 0
+ ESDS esds((const char *)data, size);
+ CHECK_EQ(esds.InitCheck(), (status_t)OK);
+
+ const void *codec_specific_data;
+ size_t codec_specific_data_size;
+ esds.getCodecSpecificInfo(
+ &codec_specific_data, &codec_specific_data_size);
+
+ sp<ABuffer> buffer = new ABuffer(codec_specific_data_size);
+
+ memcpy(buffer->data(), codec_specific_data,
+ codec_specific_data_size);
+
+ buffer->meta()->setInt32("csd", true);
+ mCSD.push(buffer);
+#else
+ sp<ABuffer> buffer = new ABuffer(size);
+ memcpy(buffer->data(), data, size);
+
+ msg->setObject("esds", buffer);
+#endif
+ }
+
+ int32_t maxInputSize;
+ if (meta->findInt32(kKeyMaxInputSize, &maxInputSize)) {
+ msg->setInt32("max-input-size", maxInputSize);
+ }
+
+ mCSDIndex = 0;
+
+ return msg;
+}
+
+void NuPlayer::Decoder::onFillThisBuffer(const sp<AMessage> &msg) {
+ sp<AMessage> reply;
+ CHECK(msg->findMessage("reply", &reply));
+
+#if 0
+ sp<RefBase> obj;
+ CHECK(msg->findObject("buffer", &obj));
+ sp<ABuffer> outBuffer = static_cast<ABuffer *>(obj.get());
+#else
+ sp<ABuffer> outBuffer;
+#endif
+
+ if (mCSDIndex < mCSD.size()) {
+ outBuffer = mCSD.editItemAt(mCSDIndex++);
+ outBuffer->meta()->setInt64("timeUs", 0);
+
+ reply->setObject("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();
+ } else {
+ CHECK(mWrapper != NULL);
+ mWrapper->signalFlush();
+ }
+}
+
+void NuPlayer::Decoder::signalResume() {
+ if (mCodec != NULL) {
+ mCodec->signalResume();
+ } else {
+ CHECK(mWrapper != NULL);
+ mWrapper->signalResume();
+ }
+}
+
+} // namespace android
+