Functions — github.com/MROS/jpeg_tutorial

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Functions38 in github.com/MROS/jpeg_tutorial

⨍ Functions 38 ◇ Types & classes 10

↓ 24 callersFunctionread_u8

(reader:&mut BufReader<File>)

src/reader.rs:33

↓ 10 callersFunctionread_u16

(reader: &mut BufReader<File>)

src/reader.rs:39

↓ 4 callersMethoddisplay

src/decoder.rs:53

↓ 3 callersFunctionchomp

src/decoder.rs:23

↓ 3 callersFunctiondata_reader

(mut reader: BufReader<File>)

src/reader.rs:381

↓ 3 callersMethodget_a_bit

src/reader.rs:201

↓ 2 callersFunctiondecoder

(reader: BufReader<File>)

src/decoder.rs:194

↓ 2 callersMethoddequantize

src/decoder.rs:73

↓ 2 callersMethodidct

NOTE: idct 直接照定義展開可嘗試其他優化方法

src/decoder.rs:114

↓ 2 callersMethodmatchHuffman

(&mut self, map: &HashMap<(u8, u16), u8>)

src/reader.rs:213

↓ 2 callersMethodread_value

(&mut self, code_len: u8)

src/reader.rs:228

↓ 2 callersFunctionto_ppm

↓ 2 callersMethodzigzag

src/decoder.rs:92

↓ 1 callersFunctioncc

(i: usize, j: usize)

src/decoder.rs:13

↓ 1 callersMethoddecode

NOTE: dequantize, zigzag, idct 的外層迴圈其實是一樣的把它們寫在一起可以更有效率、也可以節省很多程式碼行數但此處爲了能夠將每個階段的狀態都打印出來，將每個階段都寫成函式

src/decoder.rs:144

↓ 1 callersFunctionmarker_detector

分析檔頭、

src/marker.rs:23

↓ 1 callersMethodread_ac

(&mut self, map: &HashMap<(u8, u16), u8>)

src/reader.rs:245

↓ 1 callersFunctionread_app0

(reader: &mut BufReader<File>)

src/reader.rs:46

↓ 1 callersMethodread_dc

(&mut self, map: &HashMap<(u8, u16), u8>, id: usize)

src/reader.rs:239

↓ 1 callersFunctionread_dht

回傳值爲 (AC/DC, 編號, 霍夫曼表) 使用 hashmap 來儲存碼字與信源符號的對應關係 001 跟 1 雖然在編碼上代表不同含義，但是無法在數字上表示出來必須再增加一個編碼長度的資訊，才能夠分辨開來，所以我將一個編碼表示爲一個 tuple 譬如說 001 使用 (3, 1) 來表示長度

src/reader.rs:76

↓ 1 callersFunctionread_dqt

(reader: &mut BufReader<File>)

src/reader.rs:114

↓ 1 callersFunctionread_mcu

TODO: 在 read_mcus 時就拿出各 component 的 table ，避免重複計算

src/reader.rs:267

↓ 1 callersFunctionread_mcus

(reader: &mut BufReader<File>, jpeg_meta_data: &JPEGMetaData)

src/reader.rs:316

↓ 1 callersFunctionread_sof0

(reader: &mut BufReader<File>)

src/reader.rs:164

↓ 1 callersFunctionread_sof0_component

(reader: &mut BufReader<File>)

src/reader.rs:154

↓ 1 callersFunctionread_sos

在讀取 read_sos 之前， jpeg_data 的其他欄位都讀取好了

src/reader.rs:345

↓ 1 callersFunctionread_u16

(reader: &mut BufReader<File>)

src/marker.rs:16

↓ 1 callersMethodshow_all_stage

src/decoder.rs:149

↓ 1 callersFunctionshow_mcu_stage

(reader: BufReader<File>, h: usize, w: usize)

src/decoder.rs:225

↓ 1 callersMethodtoRGB

src/decoder.rs:162

(r: u8, g: u8, b: u8)

src/image.rs:11

Functioncomponent_name

src/reader.rs:335

Functionmarker_info

src/marker.rs:5

src/primitives.rs:12

(mcu: MCU, jpeg_meta_data: &'a JPEGMetaData)

src/decoder.rs:50

初始化爲全黑的

src/image.rs:24

(reader: &'a mut BufReader<File>)

src/reader.rs:193