MJpegContext Struct Reference

Holds JPEG frame data and Huffman table data. More...

#include <libavcodec/mjpegenc.h>

Data Fields
uint8_t	huff_size_dc_luminance [12]
	DC luminance Huffman table size. More...
uint16_t	huff_code_dc_luminance [12]
	DC luminance Huffman table codes. More...
uint8_t	huff_size_dc_chrominance [12]
	DC chrominance Huffman table size. More...
uint16_t	huff_code_dc_chrominance [12]
	DC chrominance Huffman table codes. More...
uint8_t	huff_size_ac_luminance [256]
	AC luminance Huffman table size. More...
uint16_t	huff_code_ac_luminance [256]
	AC luminance Huffman table codes. More...
uint8_t	huff_size_ac_chrominance [256]
	AC chrominance Huffman table size. More...
uint16_t	huff_code_ac_chrominance [256]
	AC chrominance Huffman table codes. More...
uint8_t	uni_ac_vlc_len [64 *64 *2]
	Storage for AC luminance VLC (in MpegEncContext) More...
uint8_t	uni_chroma_ac_vlc_len [64 *64 *2]
	Storage for AC chrominance VLC (in MpegEncContext) More...
uint8_t	bits_dc_luminance [17]
	DC luminance Huffman bits. More...
uint8_t	val_dc_luminance [12]
	DC luminance Huffman values. More...
uint8_t	bits_dc_chrominance [17]
	DC chrominance Huffman bits. More...
uint8_t	val_dc_chrominance [12]
	DC chrominance Huffman values. More...
uint8_t	bits_ac_luminance [17]
	AC luminance Huffman bits. More...
uint8_t	val_ac_luminance [256]
	AC luminance Huffman values. More...
uint8_t	bits_ac_chrominance [17]
	AC chrominance Huffman bits. More...
uint8_t	val_ac_chrominance [256]
	AC chrominance Huffman values. More...
size_t	huff_ncode
	Number of current entries in the buffer. More...
MJpegHuffmanCode *	huff_buffer
	Buffer for Huffman code values. More...

Detailed Description

Holds JPEG frame data and Huffman table data.

Definition at line 59 of file mjpegenc.h.

Field Documentation

huff_size_dc_luminance

uint8_t MJpegContext::huff_size_dc_luminance[12]

DC luminance Huffman table size.

Definition at line 61 of file mjpegenc.h.

Referenced by encode_block(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_init(), and ff_mjpeg_encode_picture_frame().

huff_code_dc_luminance

uint16_t MJpegContext::huff_code_dc_luminance[12]

DC luminance Huffman table codes.

Definition at line 62 of file mjpegenc.h.

Referenced by encode_block(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_init(), and ff_mjpeg_encode_picture_frame().

huff_size_dc_chrominance

uint8_t MJpegContext::huff_size_dc_chrominance[12]

DC chrominance Huffman table size.

Definition at line 63 of file mjpegenc.h.

Referenced by encode_block(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_init(), and ff_mjpeg_encode_picture_frame().

huff_code_dc_chrominance

uint16_t MJpegContext::huff_code_dc_chrominance[12]

DC chrominance Huffman table codes.

Definition at line 64 of file mjpegenc.h.

Referenced by encode_block(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_init(), and ff_mjpeg_encode_picture_frame().

huff_size_ac_luminance

uint8_t MJpegContext::huff_size_ac_luminance[256]

AC luminance Huffman table size.

Definition at line 66 of file mjpegenc.h.

Referenced by encode_block(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_init(), ff_mjpeg_encode_picture_frame(), and ff_mjpeg_encode_stuffing().

huff_code_ac_luminance

uint16_t MJpegContext::huff_code_ac_luminance[256]

AC luminance Huffman table codes.

Definition at line 67 of file mjpegenc.h.

Referenced by encode_block(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_init(), and ff_mjpeg_encode_picture_frame().

huff_size_ac_chrominance

uint8_t MJpegContext::huff_size_ac_chrominance[256]

AC chrominance Huffman table size.

Definition at line 68 of file mjpegenc.h.

Referenced by encode_block(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_init(), ff_mjpeg_encode_picture_frame(), and ff_mjpeg_encode_stuffing().

huff_code_ac_chrominance

uint16_t MJpegContext::huff_code_ac_chrominance[256]

AC chrominance Huffman table codes.

Definition at line 69 of file mjpegenc.h.

Referenced by encode_block(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_init(), and ff_mjpeg_encode_picture_frame().

uni_ac_vlc_len

uint8_t MJpegContext::uni_ac_vlc_len[64 *64 *2]

Storage for AC luminance VLC (in MpegEncContext)

Definition at line 72 of file mjpegenc.h.

Referenced by ff_mjpeg_encode_init(), and ff_mjpeg_encode_stuffing().

uni_chroma_ac_vlc_len

uint8_t MJpegContext::uni_chroma_ac_vlc_len[64 *64 *2]

Storage for AC chrominance VLC (in MpegEncContext)

Definition at line 74 of file mjpegenc.h.

Referenced by ff_mjpeg_encode_init(), and ff_mjpeg_encode_stuffing().

bits_dc_luminance

uint8_t MJpegContext::bits_dc_luminance[17]

DC luminance Huffman bits.

Definition at line 77 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), and jpeg_table_header().

val_dc_luminance

uint8_t MJpegContext::val_dc_luminance[12]

DC luminance Huffman values.

Definition at line 78 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), and jpeg_table_header().

bits_dc_chrominance

uint8_t MJpegContext::bits_dc_chrominance[17]

DC chrominance Huffman bits.

Definition at line 79 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), and jpeg_table_header().

val_dc_chrominance

uint8_t MJpegContext::val_dc_chrominance[12]

DC chrominance Huffman values.

Definition at line 80 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), and jpeg_table_header().

bits_ac_luminance

uint8_t MJpegContext::bits_ac_luminance[17]

AC luminance Huffman bits.

Definition at line 83 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), and jpeg_table_header().

val_ac_luminance

uint8_t MJpegContext::val_ac_luminance[256]

AC luminance Huffman values.

Definition at line 84 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), and jpeg_table_header().

bits_ac_chrominance

uint8_t MJpegContext::bits_ac_chrominance[17]

AC chrominance Huffman bits.

Definition at line 85 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), and jpeg_table_header().

val_ac_chrominance

uint8_t MJpegContext::val_ac_chrominance[256]

AC chrominance Huffman values.

Definition at line 86 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), and jpeg_table_header().

huff_ncode

size_t MJpegContext::huff_ncode

Number of current entries in the buffer.

Definition at line 88 of file mjpegenc.h.

Referenced by ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_code(), ff_mjpeg_encode_coef(), ff_mjpeg_encode_init(), and ff_mjpeg_encode_picture_frame().

huff_buffer

MJpegHuffmanCode* MJpegContext::huff_buffer

Buffer for Huffman code values.

Definition at line 89 of file mjpegenc.h.

Referenced by alloc_huffman(), ff_mjpeg_build_optimal_huffman(), ff_mjpeg_encode_close(), ff_mjpeg_encode_code(), ff_mjpeg_encode_coef(), and ff_mjpeg_encode_picture_frame().

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The documentation for this struct was generated from the following file:

• libavcodec/mjpegenc.h