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-rw-r--r--media/libstagefright/NuMediaExtractor.cpp482
1 files changed, 0 insertions, 482 deletions
diff --git a/media/libstagefright/NuMediaExtractor.cpp b/media/libstagefright/NuMediaExtractor.cpp
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index 224ec33..0000000
--- a/media/libstagefright/NuMediaExtractor.cpp
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@@ -1,482 +0,0 @@
-/*
- * Copyright 2012, 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 "NuMediaExtractor"
-#include <utils/Log.h>
-
-#include <media/stagefright/NuMediaExtractor.h>
-
-#include "include/ESDS.h"
-
-#include <media/stagefright/foundation/ABuffer.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MediaExtractor.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/Utils.h>
-
-namespace android {
-
-NuMediaExtractor::NuMediaExtractor() {
-}
-
-NuMediaExtractor::~NuMediaExtractor() {
- releaseTrackSamples();
-
- for (size_t i = 0; i < mSelectedTracks.size(); ++i) {
- TrackInfo *info = &mSelectedTracks.editItemAt(i);
-
- CHECK_EQ((status_t)OK, info->mSource->stop());
- }
-
- mSelectedTracks.clear();
-}
-
-status_t NuMediaExtractor::setDataSource(const char *path) {
- sp<DataSource> dataSource = DataSource::CreateFromURI(path);
-
- if (dataSource == NULL) {
- return -ENOENT;
- }
-
- mImpl = MediaExtractor::Create(dataSource);
-
- if (mImpl == NULL) {
- return ERROR_UNSUPPORTED;
- }
-
- return OK;
-}
-
-size_t NuMediaExtractor::countTracks() const {
- return mImpl == NULL ? 0 : mImpl->countTracks();
-}
-
-status_t NuMediaExtractor::getTrackFormat(
- size_t index, sp<AMessage> *format) const {
- *format = NULL;
-
- if (mImpl == NULL) {
- return -EINVAL;
- }
-
- if (index >= mImpl->countTracks()) {
- return -ERANGE;
- }
-
- sp<MetaData> meta = mImpl->getTrackMetaData(index);
-
- 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);
-
- int32_t isADTS;
- if (meta->findInt32(kKeyIsADTS, &isADTS)) {
- msg->setInt32("is-adts", true);
- }
- }
-
- int32_t maxInputSize;
- if (meta->findInt32(kKeyMaxInputSize, &maxInputSize)) {
- msg->setInt32("max-input-size", maxInputSize);
- }
-
- 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);
- buffer->meta()->setInt64("timeUs", 0);
-
- msg->setBuffer("csd-0", 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);
- buffer->meta()->setInt64("timeUs", 0);
- msg->setBuffer("csd-1", buffer);
- } else if (meta->findData(kKeyESDS, &type, &data, &size)) {
- 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);
- buffer->meta()->setInt64("timeUs", 0);
- msg->setBuffer("csd-0", buffer);
- } else if (meta->findData(kKeyVorbisInfo, &type, &data, &size)) {
- sp<ABuffer> buffer = new ABuffer(size);
- memcpy(buffer->data(), data, size);
-
- buffer->meta()->setInt32("csd", true);
- buffer->meta()->setInt64("timeUs", 0);
- msg->setBuffer("csd-0", buffer);
-
- if (!meta->findData(kKeyVorbisBooks, &type, &data, &size)) {
- return -EINVAL;
- }
-
- buffer = new ABuffer(size);
- memcpy(buffer->data(), data, size);
-
- buffer->meta()->setInt32("csd", true);
- buffer->meta()->setInt64("timeUs", 0);
- msg->setBuffer("csd-1", buffer);
- }
-
- if (meta->findData(kKeyEMM, &type, &data, &size)) {
- sp<ABuffer> emm = new ABuffer(size);
- memcpy(emm->data(), data, size);
-
- msg->setBuffer("emm", emm);
- }
-
- if (meta->findData(kKeyECM, &type, &data, &size)) {
- sp<ABuffer> ecm = new ABuffer(size);
- memcpy(ecm->data(), data, size);
-
- msg->setBuffer("ecm", ecm);
- }
-
- *format = msg;
-
- return OK;
-}
-
-status_t NuMediaExtractor::selectTrack(size_t index) {
- if (mImpl == NULL) {
- return -EINVAL;
- }
-
- if (index >= mImpl->countTracks()) {
- return -ERANGE;
- }
-
- for (size_t i = 0; i < mSelectedTracks.size(); ++i) {
- TrackInfo *info = &mSelectedTracks.editItemAt(i);
-
- if (info->mTrackIndex == index) {
- // This track has already been selected.
- return OK;
- }
- }
-
- sp<MediaSource> source = mImpl->getTrack(index);
-
- CHECK_EQ((status_t)OK, source->start());
-
- mSelectedTracks.push();
- TrackInfo *info = &mSelectedTracks.editItemAt(mSelectedTracks.size() - 1);
-
- info->mSource = source;
- info->mTrackIndex = index;
- info->mFinalResult = OK;
- info->mSample = NULL;
- info->mSampleTimeUs = -1ll;
- info->mSampleFlags = 0;
- info->mTrackFlags = 0;
-
- const char *mime;
- CHECK(source->getFormat()->findCString(kKeyMIMEType, &mime));
-
- if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_VORBIS)) {
- info->mTrackFlags |= kIsVorbis;
- }
-
- return OK;
-}
-
-void NuMediaExtractor::releaseTrackSamples() {
- for (size_t i = 0; i < mSelectedTracks.size(); ++i) {
- TrackInfo *info = &mSelectedTracks.editItemAt(i);
-
- if (info->mSample != NULL) {
- info->mSample->release();
- info->mSample = NULL;
-
- info->mSampleTimeUs = -1ll;
- info->mSampleFlags = 0;
- }
- }
-}
-
-ssize_t NuMediaExtractor::fetchTrackSamples(int64_t seekTimeUs) {
- TrackInfo *minInfo = NULL;
- ssize_t minIndex = -1;
-
- for (size_t i = 0; i < mSelectedTracks.size(); ++i) {
- TrackInfo *info = &mSelectedTracks.editItemAt(i);
-
- if (seekTimeUs >= 0ll) {
- info->mFinalResult = OK;
-
- if (info->mSample != NULL) {
- info->mSample->release();
- info->mSample = NULL;
- info->mSampleTimeUs = -1ll;
- info->mSampleFlags = 0;
- }
- } else if (info->mFinalResult != OK) {
- continue;
- }
-
- if (info->mSample == NULL) {
- MediaSource::ReadOptions options;
- if (seekTimeUs >= 0ll) {
- options.setSeekTo(seekTimeUs);
- }
- status_t err = info->mSource->read(&info->mSample, &options);
-
- if (err != OK) {
- CHECK(info->mSample == NULL);
-
- info->mFinalResult = err;
- info->mSampleTimeUs = -1ll;
- info->mSampleFlags = 0;
- continue;
- } else {
- CHECK(info->mSample != NULL);
- CHECK(info->mSample->meta_data()->findInt64(
- kKeyTime, &info->mSampleTimeUs));
-
- info->mSampleFlags = 0;
-
- int32_t val;
- if (info->mSample->meta_data()->findInt32(
- kKeyIsSyncFrame, &val) && val != 0) {
- info->mSampleFlags |= SAMPLE_FLAG_SYNC;
- }
-
- if (info->mSample->meta_data()->findInt32(
- kKeyScrambling, &val) && val != 0) {
- info->mSampleFlags |= SAMPLE_FLAG_ENCRYPTED;
- }
- }
- }
-
- if (minInfo == NULL || info->mSampleTimeUs < minInfo->mSampleTimeUs) {
- minInfo = info;
- minIndex = i;
- }
- }
-
- return minIndex;
-}
-
-status_t NuMediaExtractor::seekTo(int64_t timeUs) {
- return fetchTrackSamples(timeUs);
-}
-
-status_t NuMediaExtractor::advance() {
- ssize_t minIndex = fetchTrackSamples();
-
- if (minIndex < 0) {
- return ERROR_END_OF_STREAM;
- }
-
- TrackInfo *info = &mSelectedTracks.editItemAt(minIndex);
-
- info->mSample->release();
- info->mSample = NULL;
- info->mSampleTimeUs = -1ll;
-
- return OK;
-}
-
-status_t NuMediaExtractor::readSampleData(const sp<ABuffer> &buffer) {
- ssize_t minIndex = fetchTrackSamples();
-
- if (minIndex < 0) {
- return ERROR_END_OF_STREAM;
- }
-
- TrackInfo *info = &mSelectedTracks.editItemAt(minIndex);
-
- size_t sampleSize = info->mSample->range_length();
-
- if (info->mTrackFlags & kIsVorbis) {
- // Each sample's data is suffixed by the number of page samples
- // or -1 if not available.
- sampleSize += sizeof(int32_t);
- }
-
- if (buffer->capacity() < sampleSize) {
- return -ENOMEM;
- }
-
- const uint8_t *src =
- (const uint8_t *)info->mSample->data()
- + info->mSample->range_offset();
-
- memcpy((uint8_t *)buffer->data(), src, info->mSample->range_length());
-
- if (info->mTrackFlags & kIsVorbis) {
- int32_t numPageSamples;
- if (!info->mSample->meta_data()->findInt32(
- kKeyValidSamples, &numPageSamples)) {
- numPageSamples = -1;
- }
-
- memcpy((uint8_t *)buffer->data() + info->mSample->range_length(),
- &numPageSamples,
- sizeof(numPageSamples));
- }
-
- buffer->setRange(0, sampleSize);
-
- return OK;
-}
-
-status_t NuMediaExtractor::getSampleTrackIndex(size_t *trackIndex) {
- ssize_t minIndex = fetchTrackSamples();
-
- if (minIndex < 0) {
- return ERROR_END_OF_STREAM;
- }
-
- TrackInfo *info = &mSelectedTracks.editItemAt(minIndex);
- *trackIndex = info->mTrackIndex;
-
- return OK;
-}
-
-status_t NuMediaExtractor::getSampleTime(int64_t *sampleTimeUs) {
- ssize_t minIndex = fetchTrackSamples();
-
- if (minIndex < 0) {
- return ERROR_END_OF_STREAM;
- }
-
- TrackInfo *info = &mSelectedTracks.editItemAt(minIndex);
- *sampleTimeUs = info->mSampleTimeUs;
-
- return OK;
-}
-
-status_t NuMediaExtractor::getSampleFlags(uint32_t *sampleFlags) {
- ssize_t minIndex = fetchTrackSamples();
-
- if (minIndex < 0) {
- return ERROR_END_OF_STREAM;
- }
-
- TrackInfo *info = &mSelectedTracks.editItemAt(minIndex);
- *sampleFlags = info->mSampleFlags;
-
- return OK;
-}
-
-} // namespace android
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