MRPT  1.9.9
Classes | Macros | Typedefs | Functions
CImage_JPEG_streams.cpp File Reference
#include "img-precomp.h"
#include <mrpt/img/CImage.h>
#include <mrpt/io/CStream.h>
#include "CImage_impl.h"
#include <mrpt/otherlibs/do_opencv_includes.h>
#include <cstdio>
#include <jpeglib.h>
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Classes

struct  mrpt_destination_mgr
 
struct  my_source_mgr
 

Macros

#define XMD_H
 
#define mrpt_jpeg_source_mgr   jpeg_source_mgr
 
#define OUTPUT_BUF_SIZE   4096 /* choose an efficiently fwrite'able size */
 
#define INPUT_BUF_SIZE   4096 /* choose an efficiently fread'able size */
 

Typedefs

using mrpt_dest_ptr = mrpt_destination_mgr *
 
using my_src_ptr = my_source_mgr *
 

Functions

 init_destination (j_compress_ptr cinfo)
 
 empty_output_buffer (j_compress_ptr cinfo)
 
 term_destination (j_compress_ptr cinfo)
 
 jpeg_stdio_dest (j_compress_ptr cinfo, CStream *out)
 
 init_source (j_decompress_ptr cinfo)
 
 fill_input_buffer (j_decompress_ptr cinfo)
 
 skip_input_data (j_decompress_ptr cinfo, long num_bytes)
 
 term_source (j_decompress_ptr cinfo)
 
 jpeg_stdio_src (j_decompress_ptr cinfo, CStream *in)
 

Macro Definition Documentation

◆ INPUT_BUF_SIZE

#define INPUT_BUF_SIZE   4096 /* choose an efficiently fread'able size */

Definition at line 163 of file CImage_JPEG_streams.cpp.

Referenced by fill_input_buffer(), and jpeg_stdio_src().

◆ mrpt_jpeg_source_mgr

#define mrpt_jpeg_source_mgr   jpeg_source_mgr

Definition at line 34 of file CImage_JPEG_streams.cpp.

Referenced by jpeg_stdio_src().

◆ OUTPUT_BUF_SIZE

#define OUTPUT_BUF_SIZE   4096 /* choose an efficiently fwrite'able size */

Definition at line 48 of file CImage_JPEG_streams.cpp.

Referenced by empty_output_buffer(), init_destination(), and term_destination().

◆ XMD_H

#define XMD_H

Definition at line 29 of file CImage_JPEG_streams.cpp.

Typedef Documentation

◆ mrpt_dest_ptr

Definition at line 46 of file CImage_JPEG_streams.cpp.

◆ my_src_ptr

Definition at line 161 of file CImage_JPEG_streams.cpp.

Function Documentation

◆ empty_output_buffer()

empty_output_buffer ( j_compress_ptr  cinfo)

Definition at line 94 of file CImage_JPEG_streams.cpp.

References OUTPUT_BUF_SIZE, and TRUE.

Referenced by jpeg_stdio_dest().

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◆ fill_input_buffer()

fill_input_buffer ( j_decompress_ptr  cinfo)

Definition at line 216 of file CImage_JPEG_streams.cpp.

References FALSE, INPUT_BUF_SIZE, JPEG_EOI, THROW_EXCEPTION, and TRUE.

Referenced by jpeg_stdio_src(), and skip_input_data().

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◆ init_destination()

init_destination ( j_compress_ptr  cinfo)

Definition at line 56 of file CImage_JPEG_streams.cpp.

References mrpt_destination_mgr::buffer, JPOOL_IMAGE, and OUTPUT_BUF_SIZE.

Referenced by jpeg_stdio_dest().

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◆ init_source()

init_source ( j_decompress_ptr  cinfo)

Definition at line 171 of file CImage_JPEG_streams.cpp.

References TRUE.

Referenced by jpeg_stdio_src().

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◆ jpeg_stdio_dest()

jpeg_stdio_dest ( j_compress_ptr  cinfo,
CStream out 
)

Definition at line 126 of file CImage_JPEG_streams.cpp.

References empty_output_buffer(), init_destination(), JPOOL_PERMANENT, out, mrpt_destination_mgr::out, mrpt_destination_mgr::pub, and term_destination().

Referenced by mrpt::img::CImage::saveToStreamAsJPEG().

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◆ jpeg_stdio_src()

jpeg_stdio_src ( j_decompress_ptr  cinfo,
CStream in 
)

Definition at line 310 of file CImage_JPEG_streams.cpp.

References fill_input_buffer(), init_source(), INPUT_BUF_SIZE, JPOOL_PERMANENT, mrpt_jpeg_source_mgr, skip_input_data(), and term_source().

Referenced by mrpt::img::CImage::loadFromStreamAsJPEG().

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◆ skip_input_data()

skip_input_data ( j_decompress_ptr  cinfo,
long  num_bytes 
)

Definition at line 256 of file CImage_JPEG_streams.cpp.

References fill_input_buffer().

Referenced by jpeg_stdio_src().

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◆ term_destination()

term_destination ( j_compress_ptr  cinfo)

Definition at line 116 of file CImage_JPEG_streams.cpp.

References OUTPUT_BUF_SIZE.

Referenced by jpeg_stdio_dest().

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◆ term_source()

term_source ( j_decompress_ptr  cinfo)

Definition at line 297 of file CImage_JPEG_streams.cpp.

References MRPT_UNUSED_PARAM.

Referenced by jpeg_stdio_src().

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