FFmpeg  4.0
Data Fields
PNGDecContext Struct Reference

Data Fields

PNGDSPContext dsp
 
AVCodecContext * avctx
 
GetByteContext gb
 
ThreadFrame previous_picture
 
ThreadFrame last_picture
 
ThreadFrame picture
 
enum PNGHeaderState hdr_state
 
enum PNGImageState pic_state
 
int width
 
int height
 
int cur_w
 
int cur_h
 
int last_w
 
int last_h
 
int x_offset
 
int y_offset
 
int last_x_offset
 
int last_y_offset
 
uint8_t dispose_op
 
uint8_t blend_op
 
uint8_t last_dispose_op
 
int bit_depth
 
int color_type
 
int compression_type
 
int interlace_type
 
int filter_type
 
int channels
 
int bits_per_pixel
 
int bpp
 
int has_trns
 
uint8_t transparent_color_be [6]
 
uint8_t * image_buf
 
int image_linesize
 
uint32_t palette [256]
 
uint8_t * crow_buf
 
uint8_t * last_row
 
unsigned int last_row_size
 
uint8_t * tmp_row
 
unsigned int tmp_row_size
 
uint8_t * buffer
 
int buffer_size
 
int pass
 
int crow_size
 
int row_size
 
int pass_row_size
 
int y
 
z_stream zstream
 

Detailed Description

Definition at line 50 of file pngdec.c.

Field Documentation

◆ dsp

PNGDSPContext PNGDecContext::dsp

Definition at line 51 of file pngdec.c.

Referenced by png_dec_init().

◆ avctx

AVCodecContext* PNGDecContext::avctx

Definition at line 52 of file pngdec.c.

Referenced by decode_frame_common(), decode_iccp_chunk(), png_dec_init(), and png_decode_idat().

◆ gb

GetByteContext PNGDecContext::gb

Definition at line 54 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), decode_iccp_chunk(), decode_idat_chunk(), decode_ihdr_chunk(), decode_phys_chunk(), decode_plte_chunk(), decode_text_chunk(), decode_trns_chunk(), and png_decode_idat().

◆ previous_picture

ThreadFrame PNGDecContext::previous_picture

Definition at line 55 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), decode_idat_chunk(), handle_p_frame_apng(), png_dec_end(), and png_dec_init().

◆ last_picture

ThreadFrame PNGDecContext::last_picture

Definition at line 56 of file pngdec.c.

Referenced by decode_frame_common(), handle_p_frame_apng(), handle_p_frame_png(), png_dec_end(), and png_dec_init().

◆ picture

ThreadFrame PNGDecContext::picture

Definition at line 57 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), png_dec_end(), and png_dec_init().

◆ hdr_state

enum PNGHeaderState PNGDecContext::hdr_state

Definition at line 59 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), decode_idat_chunk(), decode_ihdr_chunk(), decode_plte_chunk(), and decode_trns_chunk().

◆ pic_state

enum PNGImageState PNGDecContext::pic_state

Definition at line 60 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), decode_ihdr_chunk(), decode_phys_chunk(), decode_trns_chunk(), and png_decode_idat().

◆ width

int PNGDecContext::width

Definition at line 61 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), decode_idat_chunk(), decode_ihdr_chunk(), handle_p_frame_png(), handle_small_bpp(), and png_put_interlaced_row().

◆ height

int PNGDecContext::height

Definition at line 61 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), decode_idat_chunk(), decode_ihdr_chunk(), handle_p_frame_apng(), handle_p_frame_png(), and handle_small_bpp().

◆ cur_w

int PNGDecContext::cur_w

Definition at line 62 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), decode_idat_chunk(), decode_ihdr_chunk(), and handle_p_frame_apng().

◆ cur_h

int PNGDecContext::cur_h

Definition at line 62 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), decode_ihdr_chunk(), and handle_p_frame_apng().

◆ last_w

int PNGDecContext::last_w

Definition at line 63 of file pngdec.c.

Referenced by decode_fctl_chunk(), and handle_p_frame_apng().

◆ last_h

int PNGDecContext::last_h

Definition at line 63 of file pngdec.c.

Referenced by decode_fctl_chunk(), and handle_p_frame_apng().

◆ x_offset

int PNGDecContext::x_offset

Definition at line 64 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), and handle_p_frame_apng().

◆ y_offset

int PNGDecContext::y_offset

Definition at line 64 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), and handle_p_frame_apng().

◆ last_x_offset

int PNGDecContext::last_x_offset

Definition at line 65 of file pngdec.c.

Referenced by decode_fctl_chunk(), and handle_p_frame_apng().

◆ last_y_offset

int PNGDecContext::last_y_offset

Definition at line 65 of file pngdec.c.

Referenced by decode_fctl_chunk(), and handle_p_frame_apng().

◆ dispose_op

uint8_t PNGDecContext::dispose_op

Definition at line 66 of file pngdec.c.

Referenced by decode_fctl_chunk(), and decode_frame_common().

◆ blend_op

uint8_t PNGDecContext::blend_op

Definition at line 66 of file pngdec.c.

Referenced by decode_fctl_chunk(), and handle_p_frame_apng().

◆ last_dispose_op

uint8_t PNGDecContext::last_dispose_op

Definition at line 67 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_idat_chunk(), and handle_p_frame_apng().

◆ bit_depth

int PNGDecContext::bit_depth

Definition at line 68 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), decode_ihdr_chunk(), and decode_trns_chunk().

◆ color_type

int PNGDecContext::color_type

Definition at line 69 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), decode_ihdr_chunk(), decode_trns_chunk(), and handle_small_bpp().

◆ compression_type

int PNGDecContext::compression_type

Definition at line 70 of file pngdec.c.

Referenced by decode_frame_common(), and decode_ihdr_chunk().

◆ interlace_type

int PNGDecContext::interlace_type

Definition at line 71 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), and decode_ihdr_chunk().

◆ filter_type

int PNGDecContext::filter_type

Definition at line 72 of file pngdec.c.

Referenced by decode_frame_common(), and decode_ihdr_chunk().

◆ channels

int PNGDecContext::channels

Definition at line 73 of file pngdec.c.

Referenced by decode_idat_chunk().

◆ bits_per_pixel

int PNGDecContext::bits_per_pixel

Definition at line 74 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), and handle_small_bpp().

◆ bpp

int PNGDecContext::bpp

Definition at line 75 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), ff_add_png_paeth_prediction(), handle_p_frame_apng(), handle_p_frame_png(), png_filter_row(), and png_put_interlaced_row().

◆ has_trns

int PNGDecContext::has_trns

Definition at line 76 of file pngdec.c.

Referenced by decode_fctl_chunk(), decode_frame_common(), decode_idat_chunk(), and decode_trns_chunk().

◆ transparent_color_be

uint8_t PNGDecContext::transparent_color_be[6]

Definition at line 77 of file pngdec.c.

Referenced by decode_frame_common(), and decode_trns_chunk().

◆ image_buf

uint8_t* PNGDecContext::image_buf

Definition at line 79 of file pngdec.c.

Referenced by decode_frame_common(), and decode_idat_chunk().

◆ image_linesize

int PNGDecContext::image_linesize

Definition at line 80 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), handle_p_frame_apng(), handle_p_frame_png(), and handle_small_bpp().

◆ palette

uint32_t PNGDecContext::palette[256]

Definition at line 81 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), decode_plte_chunk(), decode_trns_chunk(), and handle_p_frame_apng().

◆ crow_buf

uint8_t* PNGDecContext::crow_buf

Definition at line 82 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), and png_decode_idat().

◆ last_row

uint8_t* PNGDecContext::last_row

Definition at line 83 of file pngdec.c.

Referenced by decode_idat_chunk(), png_dec_end(), and png_handle_row().

◆ last_row_size

unsigned int PNGDecContext::last_row_size

Definition at line 84 of file pngdec.c.

Referenced by decode_idat_chunk(), and png_dec_end().

◆ tmp_row

uint8_t* PNGDecContext::tmp_row

Definition at line 85 of file pngdec.c.

Referenced by decode_idat_chunk(), and png_dec_end().

◆ tmp_row_size

unsigned int PNGDecContext::tmp_row_size

Definition at line 86 of file pngdec.c.

Referenced by decode_idat_chunk(), and png_dec_end().

◆ buffer

uint8_t* PNGDecContext::buffer

Definition at line 87 of file pngdec.c.

Referenced by decode_idat_chunk(), handle_p_frame_apng(), and png_dec_end().

◆ buffer_size

int PNGDecContext::buffer_size

Definition at line 88 of file pngdec.c.

Referenced by decode_idat_chunk(), and png_dec_end().

◆ pass

int PNGDecContext::pass

Definition at line 89 of file pngdec.c.

Referenced by decode_idat_chunk(), and png_put_interlaced_row().

◆ crow_size

int PNGDecContext::crow_size

Definition at line 90 of file pngdec.c.

Referenced by decode_idat_chunk(), and png_decode_idat().

◆ row_size

int PNGDecContext::row_size

Definition at line 91 of file pngdec.c.

Referenced by decode_idat_chunk().

◆ pass_row_size

int PNGDecContext::pass_row_size

Definition at line 92 of file pngdec.c.

Referenced by decode_idat_chunk().

◆ y

int PNGDecContext::y

Definition at line 93 of file pngdec.c.

Referenced by decode_frame_common(), and handle_p_frame_apng().

◆ zstream

z_stream PNGDecContext::zstream

Definition at line 94 of file pngdec.c.

Referenced by decode_frame_common(), decode_idat_chunk(), decode_zbuf(), and png_decode_idat().

The documentation for this struct was generated from the following file:
Generated on Tue May 22 2018 07:07:24 for FFmpeg by   doxygen 1.8.13