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-rwxr-xr-xlibvideoeditor/lvpp/VideoEditorSRC.cpp334
1 files changed, 0 insertions, 334 deletions
diff --git a/libvideoeditor/lvpp/VideoEditorSRC.cpp b/libvideoeditor/lvpp/VideoEditorSRC.cpp
deleted file mode 100755
index 6beabfa..0000000
--- a/libvideoeditor/lvpp/VideoEditorSRC.cpp
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * Copyright (C) 2011 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 "VideoEditorSRC"
-
-#include <stdlib.h>
-#include <utils/Log.h>
-#include <audio_utils/primitives.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/MediaDefs.h>
-#include "VideoEditorSRC.h"
-
-
-namespace android {
-
-VideoEditorSRC::VideoEditorSRC(const sp<MediaSource> &source) {
- ALOGV("VideoEditorSRC %p(%p)", this, source.get());
- static const int32_t kDefaultSamplingFreqencyHz = kFreq32000Hz;
- mSource = source;
- mResampler = NULL;
- mChannelCnt = 0;
- mSampleRate = 0;
- mOutputSampleRate = kDefaultSamplingFreqencyHz;
- mStarted = false;
- mInitialTimeStampUs = -1;
- mAccuOutBufferSize = 0;
- mSeekTimeUs = -1;
- mBuffer = NULL;
- mLeftover = 0;
- mFormatChanged = false;
- mStopPending = false;
- mSeekMode = ReadOptions::SEEK_PREVIOUS_SYNC;
-
- // Input Source validation
- sp<MetaData> format = mSource->getFormat();
- const char *mime;
- CHECK(format->findCString(kKeyMIMEType, &mime));
- CHECK(!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_RAW));
-
- // Set the metadata of the output after resampling.
- mOutputFormat = new MetaData;
- mOutputFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW);
- mOutputFormat->setInt32(kKeySampleRate, kDefaultSamplingFreqencyHz);
- mOutputFormat->setInt32(kKeyChannelCount, 2); // always stereo
-}
-
-VideoEditorSRC::~VideoEditorSRC() {
- ALOGV("~VideoEditorSRC %p(%p)", this, mSource.get());
- stop();
-}
-
-status_t VideoEditorSRC::start(MetaData *params) {
- ALOGV("start %p(%p)", this, mSource.get());
- CHECK(!mStarted);
-
- // Set resampler if required
- checkAndSetResampler();
-
- mSeekTimeUs = -1;
- mSeekMode = ReadOptions::SEEK_PREVIOUS_SYNC;
- mStarted = true;
- mSource->start();
-
- return OK;
-}
-
-status_t VideoEditorSRC::stop() {
- ALOGV("stop %p(%p)", this, mSource.get());
- if (!mStarted) {
- return OK;
- }
-
- if (mBuffer) {
- mBuffer->release();
- mBuffer = NULL;
- }
- mSource->stop();
- if (mResampler != NULL) {
- delete mResampler;
- mResampler = NULL;
- }
-
- mStarted = false;
- mInitialTimeStampUs = -1;
- mAccuOutBufferSize = 0;
- mLeftover = 0;
-
- return OK;
-}
-
-sp<MetaData> VideoEditorSRC::getFormat() {
- ALOGV("getFormat");
- return mOutputFormat;
-}
-
-status_t VideoEditorSRC::read(
- MediaBuffer **buffer_out, const ReadOptions *options) {
- ALOGV("read %p(%p)", this, mSource.get());
- *buffer_out = NULL;
-
- if (!mStarted) {
- return ERROR_END_OF_STREAM;
- }
-
- if (mResampler) {
- // Store the seek parameters
- int64_t seekTimeUs;
- ReadOptions::SeekMode mode = ReadOptions::SEEK_PREVIOUS_SYNC;
- if (options && options->getSeekTo(&seekTimeUs, &mode)) {
- ALOGV("read Seek %lld", seekTimeUs);
- mSeekTimeUs = seekTimeUs;
- mSeekMode = mode;
- }
-
- // We ask for 1024 frames in output
- // resampler output is always 2 channels and 32 bits
- const size_t kOutputFrameCount = 1024;
- const size_t kBytes = kOutputFrameCount * 2 * sizeof(int32_t);
- int32_t *pTmpBuffer = (int32_t *)calloc(1, kBytes);
- if (!pTmpBuffer) {
- ALOGE("calloc failed to allocate memory: %d bytes", kBytes);
- return NO_MEMORY;
- }
-
- // Resample to target quality
- mResampler->resample(pTmpBuffer, kOutputFrameCount, this);
-
- if (mStopPending) {
- stop();
- mStopPending = false;
- }
-
- // Change resampler and retry if format change happened
- if (mFormatChanged) {
- mFormatChanged = false;
- checkAndSetResampler();
- free(pTmpBuffer);
- return read(buffer_out, NULL);
- }
-
- // Create a new MediaBuffer
- int32_t outBufferSize = kOutputFrameCount * 2 * sizeof(int16_t);
- MediaBuffer* outBuffer = new MediaBuffer(outBufferSize);
-
- // Convert back to 2 channels and 16 bits
- ditherAndClamp(
- (int32_t *)((uint8_t*)outBuffer->data() + outBuffer->range_offset()),
- pTmpBuffer, kOutputFrameCount);
- free(pTmpBuffer);
-
- // Compute and set the new timestamp
- sp<MetaData> to = outBuffer->meta_data();
- int64_t totalOutDurationUs = (mAccuOutBufferSize * 1000000) / (mOutputSampleRate * 2 * 2);
- int64_t timeUs = mInitialTimeStampUs + totalOutDurationUs;
- to->setInt64(kKeyTime, timeUs);
-
- // update the accumulate size
- mAccuOutBufferSize += outBufferSize;
- *buffer_out = outBuffer;
- } else {
- // Resampling not required. Read and pass-through.
- MediaBuffer *aBuffer;
- status_t err = mSource->read(&aBuffer, options);
- if (err != OK) {
- ALOGV("read returns err = %d", err);
- }
-
- if (err == INFO_FORMAT_CHANGED) {
- checkAndSetResampler();
- return read(buffer_out, NULL);
- }
-
- // EOS or some other error
- if(err != OK) {
- stop();
- *buffer_out = NULL;
- return err;
- }
- *buffer_out = aBuffer;
- }
-
- return OK;
-}
-
-status_t VideoEditorSRC::getNextBuffer(AudioBufferProvider::Buffer *pBuffer, int64_t pts) {
- ALOGV("getNextBuffer %d, chan = %d", pBuffer->frameCount, mChannelCnt);
- uint32_t done = 0;
- uint32_t want = pBuffer->frameCount * mChannelCnt * 2;
- pBuffer->raw = malloc(want);
-
- while (mStarted && want > 0) {
- // If we don't have any data left, read a new buffer.
- if (!mBuffer) {
- // if we seek, reset the initial time stamp and accumulated time
- ReadOptions options;
- if (mSeekTimeUs >= 0) {
- ALOGV("%p cacheMore_l Seek requested = %lld", this, mSeekTimeUs);
- ReadOptions::SeekMode mode = mSeekMode;
- options.setSeekTo(mSeekTimeUs, mode);
- mSeekTimeUs = -1;
- mInitialTimeStampUs = -1;
- mAccuOutBufferSize = 0;
- }
-
- status_t err = mSource->read(&mBuffer, &options);
-
- if (err != OK) {
- free(pBuffer->raw);
- pBuffer->raw = NULL;
- pBuffer->frameCount = 0;
- }
-
- if (err == INFO_FORMAT_CHANGED) {
- ALOGV("getNextBuffer: source read returned INFO_FORMAT_CHANGED");
- // At this point we cannot switch to a new AudioResampler because
- // we are in a callback called by the AudioResampler itself. So
- // just remember the fact that the format has changed, and let
- // read() handles this.
- mFormatChanged = true;
- return err;
- }
-
- // EOS or some other error
- if (err != OK) {
- ALOGV("EOS or some err: %d", err);
- // We cannot call stop() here because stop() will release the
- // AudioResampler, and we are in a callback of the AudioResampler.
- // So just remember the fact and let read() call stop().
- mStopPending = true;
- return err;
- }
-
- CHECK(mBuffer);
- mLeftover = mBuffer->range_length();
- if (mInitialTimeStampUs == -1) {
- int64_t curTS;
- sp<MetaData> from = mBuffer->meta_data();
- from->findInt64(kKeyTime, &curTS);
- ALOGV("setting mInitialTimeStampUs to %lld", mInitialTimeStampUs);
- mInitialTimeStampUs = curTS;
- }
- }
-
- // Now copy data to the destination
- uint32_t todo = mLeftover;
- if (todo > want) {
- todo = want;
- }
-
- uint8_t* end = (uint8_t*)mBuffer->data() + mBuffer->range_offset()
- + mBuffer->range_length();
- memcpy((uint8_t*)pBuffer->raw + done, end - mLeftover, todo);
- done += todo;
- want -= todo;
- mLeftover -= todo;
-
- // Release MediaBuffer as soon as possible.
- if (mLeftover == 0) {
- mBuffer->release();
- mBuffer = NULL;
- }
- }
-
- pBuffer->frameCount = done / (mChannelCnt * 2);
- ALOGV("getNextBuffer done %d", pBuffer->frameCount);
- return OK;
-}
-
-
-void VideoEditorSRC::releaseBuffer(AudioBufferProvider::Buffer *pBuffer) {
- ALOGV("releaseBuffer: %p", pBuffer);
- free(pBuffer->raw);
- pBuffer->raw = NULL;
- pBuffer->frameCount = 0;
-}
-
-void VideoEditorSRC::checkAndSetResampler() {
- ALOGV("checkAndSetResampler");
-
- static const uint16_t kUnityGain = 0x1000;
- sp<MetaData> format = mSource->getFormat();
- const char *mime;
- CHECK(format->findCString(kKeyMIMEType, &mime));
- CHECK(!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_RAW));
-
- CHECK(format->findInt32(kKeySampleRate, &mSampleRate));
- CHECK(format->findInt32(kKeyChannelCount, &mChannelCnt));
-
- // If a resampler exists, delete it first
- if (mResampler != NULL) {
- delete mResampler;
- mResampler = NULL;
- }
-
- // Clear previous buffer
- if (mBuffer) {
- mBuffer->release();
- mBuffer = NULL;
- }
-
- if (mSampleRate != mOutputSampleRate || mChannelCnt != 2) {
- ALOGV("Resampling required (%d => %d Hz, # channels = %d)",
- mSampleRate, mOutputSampleRate, mChannelCnt);
-
- mResampler = AudioResampler::create(
- 16 /* bit depth */,
- mChannelCnt,
- mOutputSampleRate);
- CHECK(mResampler);
- mResampler->setSampleRate(mSampleRate);
- mResampler->setVolume(kUnityGain, kUnityGain);
- } else {
- ALOGV("Resampling not required (%d => %d Hz, # channels = %d)",
- mSampleRate, mOutputSampleRate, mChannelCnt);
- }
-}
-
-} //namespce android
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