CImage_JPEG_streams.cpp File Reference

#include "base-precomp.h"
#include <mrpt/utils/CImage.h>
#include <mrpt/utils/CStream.h>
#include <mrpt/otherlibs/do_opencv_includes.h>
#include <stdio.h>

Go to the source code of this file.

Classes
struct	mrpt_destination_mgr
struct	my_source_mgr

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

Typedefs
typedef mrpt_destination_mgr *	mrpt_dest_ptr
typedef my_source_mgr *	my_src_ptr

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 172 of file CImage_JPEG_streams.cpp.

Referenced by fill_input_buffer(), and jpeg_stdio_src().

OUTPUT_BUF_SIZE

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

Definition at line 58 of file CImage_JPEG_streams.cpp.

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

XMD_H

#define XMD_H

Definition at line 28 of file CImage_JPEG_streams.cpp.

Typedef Documentation

mrpt_dest_ptr

typedef mrpt_destination_mgr* mrpt_dest_ptr

Definition at line 56 of file CImage_JPEG_streams.cpp.

my_src_ptr

typedef my_source_mgr* my_src_ptr

Definition at line 170 of file CImage_JPEG_streams.cpp.

Function Documentation

empty_output_buffer()

empty_output_buffer

(

j_compress_ptr

cinfo

)

Definition at line 103 of file CImage_JPEG_streams.cpp.

References mrpt_destination_mgr::buffer, jpeg_destination_mgr::free_in_buffer, jpeg_destination_mgr::next_output_byte, mrpt_destination_mgr::out, OUTPUT_BUF_SIZE, mrpt_destination_mgr::pub, TRUE, and mrpt::utils::CStream::WriteBuffer().

Referenced by jpeg_stdio_dest().

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fill_input_buffer()

fill_input_buffer

(

j_decompress_ptr

cinfo

)

Definition at line 225 of file CImage_JPEG_streams.cpp.

References FALSE, my_source_mgr::in, INPUT_BUF_SIZE, JPEG_EOI, mrpt::utils::CStream::ReadBuffer(), 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 66 of file CImage_JPEG_streams.cpp.

References mrpt_destination_mgr::buffer, jpeg_destination_mgr::free_in_buffer, JPOOL_IMAGE, jpeg_destination_mgr::next_output_byte, OUTPUT_BUF_SIZE, and mrpt_destination_mgr::pub.

Referenced by jpeg_stdio_dest().

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init_source()

init_source

(

j_decompress_ptr

cinfo

)

Definition at line 180 of file CImage_JPEG_streams.cpp.

References my_source_mgr::start_of_file, and 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 135 of file CImage_JPEG_streams.cpp.

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

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

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jpeg_stdio_src()

jpeg_stdio_src	(	j_decompress_ptr	cinfo,
		CStream *	in
	)

Definition at line 319 of file CImage_JPEG_streams.cpp.

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

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

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skip_input_data()

skip_input_data	(	j_decompress_ptr	cinfo,
		long	num_bytes
	)

Definition at line 265 of file CImage_JPEG_streams.cpp.

References fill_input_buffer(), and my_source_mgr::pub.

Referenced by jpeg_stdio_src().

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term_destination()

term_destination

(

j_compress_ptr

cinfo

)

Definition at line 125 of file CImage_JPEG_streams.cpp.

References mrpt_destination_mgr::buffer, jpeg_destination_mgr::free_in_buffer, mrpt_destination_mgr::out, OUTPUT_BUF_SIZE, mrpt_destination_mgr::pub, and mrpt::utils::CStream::WriteBuffer().

Referenced by jpeg_stdio_dest().

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term_source()

term_source

(

j_decompress_ptr

cinfo

)

Definition at line 306 of file CImage_JPEG_streams.cpp.

References MRPT_UNUSED_PARAM.

Referenced by jpeg_stdio_src().

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