MJpegDecodeContext Struct Reference

#include <mjpegdec.h>

Data Fields

AVCodecContext * avctx

GetBitContext gb

int start_code

int buffer_size

uint8_t * buffer

int16_t quant_matrixes [4][64]

VLC vlcs [3][4]

int qscale [4]

quantizer scale calculated from quant_matrixes

int org_height

int first_picture

int interlaced

int bottom_field

int lossless

int ls

int progressive

int rgb

int rct

int pegasus_rct

int bits

int maxval

int near

near lossless bound (si 0 for lossless)

int t1

int t2

int t3

int reset

context halfing intervall ?rename

int width

int height

int mb_width

int mb_height

int nb_components

int block_stride [MAX_COMPONENTS]

int component_id [MAX_COMPONENTS]

int h_count [MAX_COMPONENTS]

int v_count [MAX_COMPONENTS]

int comp_index [MAX_COMPONENTS]

int dc_index [MAX_COMPONENTS]

int ac_index [MAX_COMPONENTS]

int nb_blocks [MAX_COMPONENTS]

int h_scount [MAX_COMPONENTS]

int v_scount [MAX_COMPONENTS]

int h_max

int v_max

int quant_index [4]

int last_dc [MAX_COMPONENTS]

AVFrame picture

AVFrame * picture_ptr

int got_picture

we found a SOF and picture is valid, too.

int linesize [MAX_COMPONENTS]

linesize << interlaced

int8_t * qscale_table

DCTELEM block [64]

DCTELEM(*[MAX_COMPONENTS] blocks )[64]

intermediate sums (progressive mode)

uint8_t * last_nnz [MAX_COMPONENTS]

uint64_t coefs_finished [MAX_COMPONENTS]

bitmask of which coefs have been completely decoded (progressive mode)

ScanTable scantable

DSPContext dsp

int restart_interval

int restart_count

int buggy_avid

int cs_itu601

int interlace_polarity

int mjpb_skiptosod

int cur_scan

int flipped

uint16_t(* ljpeg_buffer )[4]

unsigned int ljpeg_buffer_size

Detailed Description

Definition at line 38 of file mjpegdec.h.

Field Documentation

int MJpegDecodeContext::ac_index[MAX_COMPONENTS]

Definition at line 76 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::bits

Definition at line 60 of file mjpegdec.h.

Referenced by ff_jpegls_decode_picture(), ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), and ljpeg_decode_rgb_scan().

DCTELEM MJpegDecodeContext::block[64]

Definition at line 88 of file mjpegdec.h.

Referenced by mjpeg_decode_scan().

int MJpegDecodeContext::block_stride[MAX_COMPONENTS]

Definition at line 70 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

DCTELEM(*[MAX_COMPONENTS] MJpegDecodeContext::blocks)[64]

intermediate sums (progressive mode)

Definition at line 89 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_end(), ff_mjpeg_decode_sof(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::bottom_field

Definition at line 53 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), ff_mjpeg_decode_sof(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), mjpeg_decode_app(), mjpeg_decode_scan(), mjpeg_decode_scan_progressive_ac(), and mjpegb_decode_frame().

uint8_t* MJpegDecodeContext::buffer

Definition at line 44 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_end(), ff_mjpeg_decode_init(), and ff_mjpeg_find_marker().

int MJpegDecodeContext::buffer_size

Definition at line 43 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_init(), and ff_mjpeg_find_marker().

int MJpegDecodeContext::buggy_avid

Definition at line 98 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), mjpeg_decode_app(), and mjpeg_decode_com().

uint64_t MJpegDecodeContext::coefs_finished[MAX_COMPONENTS]

bitmask of which coefs have been completely decoded (progressive mode)

Definition at line 91 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::comp_index[MAX_COMPONENTS]

Definition at line 74 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), ljpeg_decode_yuv_scan(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::component_id[MAX_COMPONENTS]

Definition at line 71 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), and ff_mjpeg_decode_sos().

int MJpegDecodeContext::cs_itu601

Definition at line 99 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), and mjpeg_decode_com().

int MJpegDecodeContext::cur_scan

Definition at line 104 of file mjpegdec.h.

Referenced by ff_jpegls_decode_picture(), ff_mjpeg_decode_frame(), and ff_mjpeg_find_marker().

int MJpegDecodeContext::dc_index[MAX_COMPONENTS]

Definition at line 75 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), and mjpeg_decode_scan().

DSPContext MJpegDecodeContext::dsp

Definition at line 93 of file mjpegdec.h.

Referenced by decode_dc_progressive(), ff_mjpeg_decode_init(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::first_picture

Definition at line 51 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_init(), ff_mjpeg_decode_sof(), and mxpeg_decode_frame().

int MJpegDecodeContext::flipped

Definition at line 105 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_init(), mjpeg_decode_com(), and mjpeg_decode_scan().

int MJpegDecodeContext::got_picture

we found a SOF and picture is valid, too.

Definition at line 85 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), ff_mjpeg_decode_sof(), and mxpeg_decode_frame().

int MJpegDecodeContext::h_count[MAX_COMPONENTS]

Definition at line 72 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), and ff_mjpeg_decode_sos().

int MJpegDecodeContext::h_max

Definition at line 80 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), and ff_mjpeg_decode_sos().

int MJpegDecodeContext::h_scount[MAX_COMPONENTS]

Definition at line 78 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), ljpeg_decode_yuv_scan(), and mjpeg_decode_scan().

int MJpegDecodeContext::height

Definition at line 67 of file mjpegdec.h.

Referenced by ff_jpegls_decode_picture(), ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), mjpeg_decode_scan(), and mxpeg_check_dimensions().

int MJpegDecodeContext::interlace_polarity

Definition at line 100 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), ff_mjpeg_decode_init(), ff_mjpeg_decode_sof(), and mjpegb_decode_frame().

int MJpegDecodeContext::interlaced

Definition at line 52 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), ff_mjpeg_decode_sof(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), mjpeg_decode_scan(), mjpeg_decode_scan_progressive_ac(), mjpegb_decode_frame(), and mxpeg_decode_frame().

int MJpegDecodeContext::last_dc[MAX_COMPONENTS]

Definition at line 82 of file mjpegdec.h.

Referenced by decode_block(), decode_dc_progressive(), ff_mjpeg_decode_sos(), and mjpeg_decode_scan().

uint8_t* MJpegDecodeContext::last_nnz[MAX_COMPONENTS]

Definition at line 90 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_end(), ff_mjpeg_decode_sof(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::linesize[MAX_COMPONENTS]

linesize << interlaced

Definition at line 86 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

uint16_t(* MJpegDecodeContext::ljpeg_buffer)[4]

Definition at line 107 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_end(), and ljpeg_decode_rgb_scan().

unsigned int MJpegDecodeContext::ljpeg_buffer_size

Definition at line 108 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_end(), and ljpeg_decode_rgb_scan().

int MJpegDecodeContext::lossless

Definition at line 54 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), and mjpegb_decode_frame().

int MJpegDecodeContext::ls

Definition at line 55 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), and ff_mjpeg_find_marker().

int MJpegDecodeContext::maxval

Definition at line 62 of file mjpegdec.h.

Referenced by ff_jpegls_decode_lse(), and ff_jpegls_decode_picture().

int MJpegDecodeContext::mb_height

Definition at line 68 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::mb_width

Definition at line 68 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::mjpb_skiptosod

Definition at line 102 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), and mjpegb_decode_frame().

int MJpegDecodeContext::nb_blocks[MAX_COMPONENTS]

Definition at line 77 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), ljpeg_decode_yuv_scan(), and mjpeg_decode_scan().

int MJpegDecodeContext::nb_components

Definition at line 69 of file mjpegdec.h.

Referenced by ff_jpegls_decode_picture(), ff_mjpeg_decode_sof(), and ff_mjpeg_decode_sos().

int MJpegDecodeContext::near

near lossless bound (si 0 for lossless)

Definition at line 63 of file mjpegdec.h.

int MJpegDecodeContext::org_height

Definition at line 50 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_init(), and ff_mjpeg_decode_sof().

int MJpegDecodeContext::pegasus_rct

Definition at line 59 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), ljpeg_decode_rgb_scan(), and mjpeg_decode_app().

AVFrame MJpegDecodeContext::picture

Definition at line 83 of file mjpegdec.h.

Referenced by ff_jpegls_decode_picture(), ff_mjpeg_decode_init(), ff_mjpeg_decode_sos(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), and mjpeg_decode_scan_progressive_ac().

AVFrame* MJpegDecodeContext::picture_ptr

Definition at line 84 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_end(), ff_mjpeg_decode_frame(), ff_mjpeg_decode_init(), ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), mjpeg_decode_scan(), mjpegb_decode_frame(), mxpeg_check_dimensions(), mxpeg_decode_end(), mxpeg_decode_frame(), and mxpeg_decode_init().

int MJpegDecodeContext::progressive

Definition at line 56 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), and mjpeg_decode_scan().

int MJpegDecodeContext::qscale[4]

quantizer scale calculated from quant_matrixes

Definition at line 48 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_dqt(), ff_mjpeg_decode_frame(), and mjpegb_decode_frame().

int8_t* MJpegDecodeContext::qscale_table

Definition at line 87 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_end(), ff_mjpeg_decode_frame(), ff_mjpeg_decode_sof(), and mjpegb_decode_frame().

int MJpegDecodeContext::quant_index[4]

Definition at line 81 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int16_t MJpegDecodeContext::quant_matrixes[4][64]

Definition at line 46 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_dqt(), mjpeg_decode_scan(), and mjpeg_decode_scan_progressive_ac().

int MJpegDecodeContext::rct

Definition at line 58 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), and ljpeg_decode_rgb_scan().

int MJpegDecodeContext::reset

context halfing intervall ?rename

Definition at line 65 of file mjpegdec.h.

Referenced by ff_jpegls_decode_lse(), and ff_jpegls_decode_picture().

int MJpegDecodeContext::restart_count

Definition at line 96 of file mjpegdec.h.

Referenced by ff_jpegls_decode_picture(), ff_mjpeg_decode_frame(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), mjpeg_decode_dri(), mjpeg_decode_scan(), and mjpegb_decode_frame().

int MJpegDecodeContext::restart_interval

Definition at line 95 of file mjpegdec.h.

Referenced by ff_jpegls_decode_picture(), ff_mjpeg_decode_frame(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), mjpeg_decode_dri(), mjpeg_decode_scan(), and mjpegb_decode_frame().

int MJpegDecodeContext::rgb

Definition at line 57 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), and mjpeg_decode_app().

ScanTable MJpegDecodeContext::scantable

Definition at line 92 of file mjpegdec.h.

Referenced by decode_block(), decode_block_progressive(), decode_block_refinement(), ff_mjpeg_decode_dqt(), and ff_mjpeg_decode_init().

int MJpegDecodeContext::start_code

Definition at line 42 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_frame(), ff_mjpeg_decode_init(), mjpeg_decode_app(), and mjpegb_decode_frame().

int MJpegDecodeContext::t1

Definition at line 64 of file mjpegdec.h.

Referenced by ff_jpegls_decode_lse(), and ff_jpegls_decode_picture().

int MJpegDecodeContext::t2

Definition at line 64 of file mjpegdec.h.

Referenced by ff_jpegls_decode_lse(), and ff_jpegls_decode_picture().

int MJpegDecodeContext::t3

Definition at line 64 of file mjpegdec.h.

Referenced by ff_jpegls_decode_lse(), and ff_jpegls_decode_picture().

int MJpegDecodeContext::v_count[MAX_COMPONENTS]

Definition at line 73 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), and ff_mjpeg_decode_sos().

int MJpegDecodeContext::v_max

Definition at line 80 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), and mjpeg_decode_scan().

int MJpegDecodeContext::v_scount[MAX_COMPONENTS]

Definition at line 79 of file mjpegdec.h.

Referenced by ff_mjpeg_decode_sos(), ljpeg_decode_yuv_scan(), and mjpeg_decode_scan().

VLC MJpegDecodeContext::vlcs[3][4]

Definition at line 47 of file mjpegdec.h.

Referenced by build_basic_mjpeg_vlc(), decode_block(), decode_block_progressive(), decode_block_refinement(), ff_mjpeg_decode_dht(), ff_mjpeg_decode_end(), ff_mjpeg_decode_sos(), and mjpeg_decode_dc().

int MJpegDecodeContext::width

Definition at line 67 of file mjpegdec.h.

Referenced by ff_jpegls_decode_picture(), ff_mjpeg_decode_frame(), ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), mjpegb_decode_frame(), and mxpeg_check_dimensions().

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

libavcodec/mjpegdec.h


Data Fields
AVCodecContext *	avctx
GetBitContext	gb
int	start_code
int	buffer_size
uint8_t *	buffer
int16_t	quant_matrixes [4][64]
VLC	vlcs [3][4]
int	qscale [4]
	quantizer scale calculated from quant_matrixes
int	org_height
int	first_picture
int	interlaced
int	bottom_field
int	lossless
int	ls
int	progressive
int	rgb
int	rct
int	pegasus_rct
int	bits
int	maxval
int	near
	near lossless bound (si 0 for lossless)
int	t1
int	t2
int	t3
int	reset
	context halfing intervall ?rename
int	width
int	height
int	mb_width
int	mb_height
int	nb_components
int	block_stride [MAX_COMPONENTS]
int	component_id [MAX_COMPONENTS]
int	h_count [MAX_COMPONENTS]
int	v_count [MAX_COMPONENTS]
int	comp_index [MAX_COMPONENTS]
int	dc_index [MAX_COMPONENTS]
int	ac_index [MAX_COMPONENTS]
int	nb_blocks [MAX_COMPONENTS]
int	h_scount [MAX_COMPONENTS]
int	v_scount [MAX_COMPONENTS]
int	h_max
int	v_max
int	quant_index [4]
int	last_dc [MAX_COMPONENTS]
AVFrame	picture
AVFrame *	picture_ptr
int	got_picture
	we found a SOF and picture is valid, too.
int	linesize [MAX_COMPONENTS]
	linesize << interlaced
int8_t *	qscale_table
DCTELEM	block [64]
DCTELEM(*[MAX_COMPONENTS]	blocks )[64]
	intermediate sums (progressive mode)
uint8_t *	last_nnz [MAX_COMPONENTS]
uint64_t	coefs_finished [MAX_COMPONENTS]
	bitmask of which coefs have been completely decoded (progressive mode)
ScanTable	scantable
DSPContext	dsp
int	restart_interval
int	restart_count
int	buggy_avid
int	cs_itu601
int	interlace_polarity
int	mjpb_skiptosod
int	cur_scan
int	flipped
uint16_t(*	ljpeg_buffer )[4]
unsigned int	ljpeg_buffer_size