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1 | /***************************************************************************** |
2 | * Copyright (C) 2013 x265 project | |
3 | * | |
4 | * Authors: Steve Borho <steve@borho.org> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. | |
19 | * | |
20 | * This program is also available under a commercial proprietary license. | |
21 | * For more information, contact us at license @ x265.com. | |
22 | *****************************************************************************/ | |
23 | ||
24 | #ifndef X265_Y4M_H | |
25 | #define X265_Y4M_H | |
26 | ||
27 | #include "input.h" | |
28 | #include "threading.h" | |
29 | #include <fstream> | |
30 | ||
31 | #define QUEUE_SIZE 5 | |
32 | ||
33 | namespace x265 { | |
34 | // x265 private namespace | |
35 | ||
36 | class Y4MInput : public Input, public Thread | |
37 | { | |
38 | protected: | |
39 | ||
40 | uint32_t rateNum; | |
41 | ||
42 | uint32_t rateDenom; | |
43 | ||
44 | uint32_t sarWidth; | |
45 | ||
46 | uint32_t sarHeight; | |
47 | ||
48 | size_t framesize; | |
49 | ||
50 | int depth; | |
51 | ||
52 | int width; | |
53 | ||
54 | int height; | |
55 | ||
56 | int colorSpace; | |
57 | ||
58 | bool threadActive; | |
59 | ||
60 | ThreadSafeInteger readCount; | |
61 | ||
62 | ThreadSafeInteger writeCount; | |
63 | ||
64 | char* buf[QUEUE_SIZE]; | |
65 | ||
66 | std::istream *ifs; | |
67 | ||
68 | bool parseHeader(); | |
69 | ||
70 | void threadMain(); | |
71 | ||
72 | bool populateFrameQueue(); | |
73 | ||
74 | public: | |
75 | ||
76 | Y4MInput(InputFileInfo& info); | |
77 | ||
78 | virtual ~Y4MInput(); | |
79 | ||
80 | void release(); | |
81 | ||
82 | bool isEof() const { return ifs && ifs->eof(); } | |
83 | ||
84 | bool isFail() { return !(ifs && !ifs->fail() && threadActive); } | |
85 | ||
86 | void startReader(); | |
87 | ||
88 | bool readPicture(x265_picture&); | |
89 | ||
90 | const char *getName() const { return "y4m"; } | |
91 | }; | |
92 | } | |
93 | ||
94 | #endif // ifndef X265_Y4M_H |