/* * Copyright (c) 2014 h264bsd. All rights reserved. * * 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. * */ #import "h264bsdDecoder.h"#include "h264bsd_decoder.h" @interface H264bsdDecoder()@property (assign, nonatomic) storage_t *pStorage;@end @implementation H264bsdDecoder - (id)init{ self = [super init]; if(self) { self.pStorage = h264bsdAlloc(); h264bsdInit(self.pStorage, 0); } return self;} - (void)dealloc{ h264bsdShutdown(self.pStorage); h264bsdFree(self.pStorage);} - (H264bsdStatus)decode:(NSData *)data offset:(NSUInteger)offset length:(NSUInteger)length bytesRead:(NSUInteger*)bytesRead{ u32 readBytes; u8 *byteStrm = (u8*)[data bytes] + offset; u32 status = h264bsdDecode(self.pStorage, byteStrm, (u32)length, 0, &readBytes); *bytesRead = readBytes; return (H264bsdStatus)status;} - (NSData *)nextOutputPicture{ u32 picId, isIdrPic, numErrMbs; u8* data = h264bsdNextOutputPicture(self.pStorage, &picId, &isIdrPic, &numErrMbs); if(!data) return nil; size_t length = self.outputWidth * self.outputHeight * 3 / 2; return [NSData dataWithBytes:data length:length];} - (NSData *)nextOutputPictureRGBA{ u32 picId, isIdrPic, numErrMbs; u32* data = h264bsdNextOutputPictureRGBA(self.pStorage, &picId, &isIdrPic, &numErrMbs); if(!data) return nil; size_t length = self.outputWidth * self.outputHeight * 4; return [NSData dataWithBytes:data length:length];} - (NSInteger)outputWidth{ return h264bsdPicWidth(self.pStorage) * 16;} - (NSInteger)outputHeight{ return h264bsdPicHeight(self.pStorage) * 16;} - (H264CroppingParams)croppingParams{ u32 croppingFlag, left, width, top, height; h264bsdCroppingParams(self.pStorage, &croppingFlag, &left, &width, &top, &height); H264CroppingParams params = { (croppingFlag > 0) ? YES : NO, top, left, width, height }; return params;} @end
/*
* Copyright (c) 2014 h264bsd. All rights reserved.
*
* 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.
*
*/
#import "h264bsdDecoder.h"
#include "h264bsd_decoder.h"
@interface H264bsdDecoder()
@property (assign, nonatomic) storage_t *pStorage;
@end
@implementation H264bsdDecoder
- (id)init
{
self = [super init];
if(self)
{
self.pStorage = h264bsdAlloc();
h264bsdInit(self.pStorage, 0);
}
return self;
}
- (void)dealloc
{
h264bsdShutdown(self.pStorage);
h264bsdFree(self.pStorage);
}
- (H264bsdStatus)decode:(NSData *)data offset:(NSUInteger)offset length:(NSUInteger)length bytesRead:(NSUInteger*)bytesRead
{
u32 readBytes;
u8 *byteStrm = (u8*)[data bytes] + offset;
u32 status = h264bsdDecode(self.pStorage, byteStrm, (u32)length, 0, &readBytes);
*bytesRead = readBytes;
return (H264bsdStatus)status;
}
- (NSData *)nextOutputPicture
{
u32 picId, isIdrPic, numErrMbs;
u8* data = h264bsdNextOutputPicture(self.pStorage, &picId, &isIdrPic, &numErrMbs);
if(!data) return nil;
size_t length = self.outputWidth * self.outputHeight * 3 / 2;
return [NSData dataWithBytes:data length:length];
}
- (NSData *)nextOutputPictureRGBA
{
u32 picId, isIdrPic, numErrMbs;
u32* data = h264bsdNextOutputPictureRGBA(self.pStorage, &picId, &isIdrPic, &numErrMbs);
if(!data) return nil;
size_t length = self.outputWidth * self.outputHeight * 4;
return [NSData dataWithBytes:data length:length];
}
- (NSInteger)outputWidth
{
return h264bsdPicWidth(self.pStorage) * 16;
}
- (NSInteger)outputHeight
{
return h264bsdPicHeight(self.pStorage) * 16;
}
- (H264CroppingParams)croppingParams
{
u32 croppingFlag, left, width, top, height;
h264bsdCroppingParams(self.pStorage, &croppingFlag, &left, &width, &top, &height);
H264CroppingParams params =
{
(croppingFlag > 0) ? YES : NO,
top,
left,
width,
height
};
return params;
}
@end