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/*
* Copyright (C) 2009 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_TAG "OmxJpegDecoder"
#include <sys/time.h>
#include <utils/Log.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <binder/IServiceManager.h>
#include <binder/ProcessState.h>
#include <media/IMediaPlayerService.h>
#include <media/stagefright/MediaDebug.h>
#include <media/stagefright/MediaSource.h>
#include <media/stagefright/MetaData.h>
#include <media/stagefright/OMXClient.h>
#include <media/stagefright/OMXCodec.h>
#include <SkMallocPixelRef.h>
#include "omx_jpeg_decoder.h"
#include "SkOmxPixelRef.h"
#include "StreamSource.h"
using namespace android;
static void getJpegOutput(MediaBuffer* buffer, char* filename) {
int size = buffer->range_length();
int offset = buffer->range_offset();
FILE *pFile = fopen(filename, "w+");
if (pFile == NULL) {
printf("Error: cannot open %s.\n", filename);
} else {
char* data = (char*) buffer->data();
data += offset;
while (size > 0) {
int numChars = fwrite(data, sizeof(char), 1024, pFile);
int numBytes = numChars * sizeof(char);
size -= numBytes;
data += numBytes;
}
fclose(pFile);
}
return;
}
extern int storeBitmapToFile(SkBitmap* bitmap, char* filename) {
bitmap->lockPixels();
void* data = bitmap->getPixels();
int size = bitmap->getSize();
FILE* fp = fopen(filename, "w+");
if (NULL == fp) {
printf("Cannot open the output file! \n");
return -1;
} else {
while (size > 0) {
int numChars = fwrite(data, sizeof(char), 1024, fp);
int numBytes = numChars * sizeof(char);
size -= numBytes;
data += numBytes;
}
fclose(fp);
}
return 0;
}
static int64_t getNowUs() {
struct timeval tv;
gettimeofday(&tv, NULL);
return (int64_t)tv.tv_usec + tv.tv_sec * 1000000;
}
OmxJpegImageDecoder::OmxJpegImageDecoder() {
status_t err = mClient.connect();
CHECK_EQ(err, OK);
}
OmxJpegImageDecoder::~OmxJpegImageDecoder() {
mClient.disconnect();
}
bool OmxJpegImageDecoder::onDecode(SkStream* stream,
SkBitmap* bm, SkBitmap::Config pref, Mode mode) {
sp<MediaSource> source = prepareMediaSource(stream);
sp<MetaData> meta = source->getFormat();
int width;
int height;
meta->findInt32(kKeyWidth, &width);
meta->findInt32(kKeyHeight, &height);
configBitmapSize(bm, pref, width, height);
// mode == DecodeBounds
if (mode == SkImageDecoder::kDecodeBounds_Mode) {
return true;
}
// mode == DecodePixels
if (!this->allocPixelRef(bm, NULL)) {
LOGI(LOG_TAG, "Cannot allocPixelRef()!");
return false;
}
sp<OMXCodec> decoder = getDecoder(&mClient, source);
return decodeSource(decoder, source, bm);
}
JPEGSource* OmxJpegImageDecoder::prepareMediaSource(SkStream* stream) {
DataSource::RegisterDefaultSniffers();
sp<DataSource> dataSource = new StreamSource(stream);
return new JPEGSource(dataSource);
}
sp<OMXCodec> OmxJpegImageDecoder::getDecoder(
OMXClient *client, const sp<MediaSource>& source) {
sp<MetaData> meta = source->getFormat();
sp<OMXCodec> decoder = OMXCodec::Create(
client->interface(), meta, false /* createEncoder */, source);
CHECK(decoder != NULL);
return decoder;
}
bool OmxJpegImageDecoder::decodeSource(sp<OMXCodec> decoder,
const sp<MediaSource>& source, SkBitmap* bm) {
status_t rt = decoder->start();
if (rt != OK) {
LOGE(LOG_TAG, "Cannot start OMX Decoder!");
return false;
}
int64_t startTime = getNowUs();
MediaBuffer *buffer;
// decode source
status_t err = decoder->read(&buffer, NULL);
int64_t duration = getNowUs() - startTime;
if (err != OK) {
CHECK_EQ(buffer, NULL);
}
printf("Duration in decoder->read(): %.1f (msecs). \n",
duration / 1E3 );
/* Mark the code for now, since we attend to copy buffer to SkBitmap.
// Install pixelRef to Bitmap.
installPixelRef(buffer, decoder, bm);*/
// Copy pixels from buffer to bm.
// May need to check buffer->rawBytes() == bm->rawBytes().
CHECK_EQ(buffer->size(), bm->getSize());
memcpy(bm->getPixels(), buffer->data(), buffer->size());
buffer->release();
decoder->stop();
return true;
}
void OmxJpegImageDecoder::installPixelRef(MediaBuffer *buffer, sp<OMXCodec> decoder,
SkBitmap* bm) {
// set bm's pixelref based on the data in buffer.
SkAutoLockPixels alp(*bm);
SkPixelRef* pr = new SkOmxPixelRef(NULL, buffer, decoder);
bm->setPixelRef(pr)->unref();
bm->lockPixels();
return;
}
void OmxJpegImageDecoder::configBitmapSize(SkBitmap* bm, SkBitmap::Config pref,
int width, int height) {
bm->setConfig(getColorSpaceConfig(pref), width, height);
bm->setIsOpaque(true);
}
SkBitmap::Config OmxJpegImageDecoder::getColorSpaceConfig(
SkBitmap::Config pref) {
// Set the color space to ARGB_8888 for now
// because of limitation in hardware support.
return SkBitmap::kARGB_8888_Config;
}
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