blob: c29233cd1a6c272858919811f0244c2b4e57dc9f [file] [log] [blame]
/*
**
** Copyright 2008, 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 "CameraParams2"
// #define LOG_NDEBUG 0
#include <utils/Log.h>
#include <string.h>
#include <stdlib.h>
#include <camera/CameraParameters2.h>
namespace android {
CameraParameters2::CameraParameters2()
: mMap()
{
}
CameraParameters2::~CameraParameters2()
{
}
String8 CameraParameters2::flatten() const
{
String8 flattened("");
size_t size = mMap.size();
for (size_t i = 0; i < size; i++) {
String8 k, v;
k = mMap.keyAt(i);
v = mMap.valueAt(i);
flattened += k;
flattened += "=";
flattened += v;
if (i != size-1)
flattened += ";";
}
ALOGV("%s: Flattened params = %s", __FUNCTION__, flattened.string());
return flattened;
}
void CameraParameters2::unflatten(const String8 &params)
{
const char *a = params.string();
const char *b;
mMap.clear();
for (;;) {
// Find the bounds of the key name.
b = strchr(a, '=');
if (b == 0)
break;
// Create the key string.
String8 k(a, (size_t)(b-a));
// Find the value.
a = b+1;
b = strchr(a, ';');
if (b == 0) {
// If there's no semicolon, this is the last item.
String8 v(a);
mMap.add(k, v);
break;
}
String8 v(a, (size_t)(b-a));
mMap.add(k, v);
a = b+1;
}
}
void CameraParameters2::set(const char *key, const char *value)
{
// XXX i think i can do this with strspn()
if (strchr(key, '=') || strchr(key, ';')) {
//XXX ALOGE("Key \"%s\"contains invalid character (= or ;)", key);
return;
}
if (strchr(value, '=') || strchr(value, ';')) {
//XXX ALOGE("Value \"%s\"contains invalid character (= or ;)", value);
return;
}
// Replacing a value updates the key's order to be the new largest order
ssize_t res = mMap.replaceValueFor(String8(key), String8(value));
LOG_ALWAYS_FATAL_IF(res < 0, "replaceValueFor(%s,%s) failed", key, value);
}
void CameraParameters2::set(const char *key, int value)
{
char str[16];
sprintf(str, "%d", value);
set(key, str);
}
void CameraParameters2::setFloat(const char *key, float value)
{
char str[16]; // 14 should be enough. We overestimate to be safe.
snprintf(str, sizeof(str), "%g", value);
set(key, str);
}
const char *CameraParameters2::get(const char *key) const
{
ssize_t idx = mMap.indexOfKey(String8(key));
if (idx < 0) {
return NULL;
} else {
return mMap.valueAt(idx).string();
}
}
int CameraParameters2::getInt(const char *key) const
{
const char *v = get(key);
if (v == 0)
return -1;
return strtol(v, 0, 0);
}
float CameraParameters2::getFloat(const char *key) const
{
const char *v = get(key);
if (v == 0) return -1;
return strtof(v, 0);
}
status_t CameraParameters2::compareSetOrder(const char *key1, const char *key2,
int *order) const {
if (key1 == NULL) {
ALOGE("%s: key1 must not be NULL", __FUNCTION__);
return BAD_VALUE;
} else if (key2 == NULL) {
ALOGE("%s: key2 must not be NULL", __FUNCTION__);
return BAD_VALUE;
} else if (order == NULL) {
ALOGE("%s: order must not be NULL", __FUNCTION__);
return BAD_VALUE;
}
ssize_t index1 = mMap.indexOfKey(String8(key1));
ssize_t index2 = mMap.indexOfKey(String8(key2));
if (index1 < 0) {
ALOGW("%s: Key1 (%s) was not set", __FUNCTION__, key1);
return NAME_NOT_FOUND;
} else if (index2 < 0) {
ALOGW("%s: Key2 (%s) was not set", __FUNCTION__, key2);
return NAME_NOT_FOUND;
}
*order = (index1 == index2) ? 0 :
(index1 < index2) ? -1 :
1;
return OK;
}
void CameraParameters2::remove(const char *key)
{
mMap.removeItem(String8(key));
}
// Parse string like "640x480" or "10000,20000"
static int parse_pair(const char *str, int *first, int *second, char delim,
char **endptr = NULL)
{
// Find the first integer.
char *end;
int w = (int)strtol(str, &end, 10);
// If a delimeter does not immediately follow, give up.
if (*end != delim) {
ALOGE("Cannot find delimeter (%c) in str=%s", delim, str);
return -1;
}
// Find the second integer, immediately after the delimeter.
int h = (int)strtol(end+1, &end, 10);
*first = w;
*second = h;
if (endptr) {
*endptr = end;
}
return 0;
}
static void parseSizesList(const char *sizesStr, Vector<Size> &sizes)
{
if (sizesStr == 0) {
return;
}
char *sizeStartPtr = (char *)sizesStr;
while (true) {
int width, height;
int success = parse_pair(sizeStartPtr, &width, &height, 'x',
&sizeStartPtr);
if (success == -1 || (*sizeStartPtr != ',' && *sizeStartPtr != '\0')) {
ALOGE("Picture sizes string \"%s\" contains invalid character.", sizesStr);
return;
}
sizes.push(Size(width, height));
if (*sizeStartPtr == '\0') {
return;
}
sizeStartPtr++;
}
}
void CameraParameters2::setPreviewSize(int width, int height)
{
char str[32];
sprintf(str, "%dx%d", width, height);
set(CameraParameters::KEY_PREVIEW_SIZE, str);
}
void CameraParameters2::getPreviewSize(int *width, int *height) const
{
*width = *height = -1;
// Get the current string, if it doesn't exist, leave the -1x-1
const char *p = get(CameraParameters::KEY_PREVIEW_SIZE);
if (p == 0) return;
parse_pair(p, width, height, 'x');
}
void CameraParameters2::getPreferredPreviewSizeForVideo(int *width, int *height) const
{
*width = *height = -1;
const char *p = get(CameraParameters::KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO);
if (p == 0) return;
parse_pair(p, width, height, 'x');
}
void CameraParameters2::getSupportedPreviewSizes(Vector<Size> &sizes) const
{
const char *previewSizesStr = get(CameraParameters::KEY_SUPPORTED_PREVIEW_SIZES);
parseSizesList(previewSizesStr, sizes);
}
void CameraParameters2::setVideoSize(int width, int height)
{
char str[32];
sprintf(str, "%dx%d", width, height);
set(CameraParameters::KEY_VIDEO_SIZE, str);
}
void CameraParameters2::getVideoSize(int *width, int *height) const
{
*width = *height = -1;
const char *p = get(CameraParameters::KEY_VIDEO_SIZE);
if (p == 0) return;
parse_pair(p, width, height, 'x');
}
void CameraParameters2::getSupportedVideoSizes(Vector<Size> &sizes) const
{
const char *videoSizesStr = get(CameraParameters::KEY_SUPPORTED_VIDEO_SIZES);
parseSizesList(videoSizesStr, sizes);
}
void CameraParameters2::setPreviewFrameRate(int fps)
{
set(CameraParameters::KEY_PREVIEW_FRAME_RATE, fps);
}
int CameraParameters2::getPreviewFrameRate() const
{
return getInt(CameraParameters::KEY_PREVIEW_FRAME_RATE);
}
void CameraParameters2::getPreviewFpsRange(int *min_fps, int *max_fps) const
{
*min_fps = *max_fps = -1;
const char *p = get(CameraParameters::KEY_PREVIEW_FPS_RANGE);
if (p == 0) return;
parse_pair(p, min_fps, max_fps, ',');
}
void CameraParameters2::setPreviewFpsRange(int min_fps, int max_fps)
{
String8 str = String8::format("%d,%d", min_fps, max_fps);
set(CameraParameters::KEY_PREVIEW_FPS_RANGE, str.string());
}
void CameraParameters2::setPreviewFormat(const char *format)
{
set(CameraParameters::KEY_PREVIEW_FORMAT, format);
}
const char *CameraParameters2::getPreviewFormat() const
{
return get(CameraParameters::KEY_PREVIEW_FORMAT);
}
void CameraParameters2::setPictureSize(int width, int height)
{
char str[32];
sprintf(str, "%dx%d", width, height);
set(CameraParameters::KEY_PICTURE_SIZE, str);
}
void CameraParameters2::getPictureSize(int *width, int *height) const
{
*width = *height = -1;
// Get the current string, if it doesn't exist, leave the -1x-1
const char *p = get(CameraParameters::KEY_PICTURE_SIZE);
if (p == 0) return;
parse_pair(p, width, height, 'x');
}
void CameraParameters2::getSupportedPictureSizes(Vector<Size> &sizes) const
{
const char *pictureSizesStr = get(CameraParameters::KEY_SUPPORTED_PICTURE_SIZES);
parseSizesList(pictureSizesStr, sizes);
}
void CameraParameters2::setPictureFormat(const char *format)
{
set(CameraParameters::KEY_PICTURE_FORMAT, format);
}
const char *CameraParameters2::getPictureFormat() const
{
return get(CameraParameters::KEY_PICTURE_FORMAT);
}
void CameraParameters2::dump() const
{
ALOGD("dump: mMap.size = %zu", mMap.size());
for (size_t i = 0; i < mMap.size(); i++) {
String8 k, v;
k = mMap.keyAt(i);
v = mMap.valueAt(i);
ALOGD("%s: %s\n", k.string(), v.string());
}
}
status_t CameraParameters2::dump(int fd, const Vector<String16>& args) const
{
(void)args;
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
snprintf(buffer, 255, "CameraParameters2::dump: mMap.size = %zu\n", mMap.size());
result.append(buffer);
for (size_t i = 0; i < mMap.size(); i++) {
String8 k, v;
k = mMap.keyAt(i);
v = mMap.valueAt(i);
snprintf(buffer, 255, "\t%s: %s\n", k.string(), v.string());
result.append(buffer);
}
write(fd, result.string(), result.size());
return NO_ERROR;
}
}; // namespace android