| 1 | /* |
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| 2 | Copyright (C) 2012-2021 Harald Sitter <sitter@kde.org> |
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| 3 | |
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| 4 | This library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | This library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with this library. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | */ |
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| 17 | |
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| 18 | #ifndef PHONON_VLC_VIDEOMEMORYSTREAM_H |
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| 19 | #define PHONON_VLC_VIDEOMEMORYSTREAM_H |
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| 20 | |
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| 21 | // VLC 3.0 uses the restrict keyword. restrict is not a thing in C++, so |
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| 22 | // depending on the compiler you use an extension keyword or drop it entirely. |
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| 23 | #if defined(Q_CC_GNU) |
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| 24 | #define restrict __restrict__ |
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| 25 | #elif defined(Q_CC_MSVC) |
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| 26 | #define restrict __restrict |
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| 27 | #else |
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| 28 | #define restrict |
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| 29 | #endif |
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| 30 | |
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| 31 | #include <vlc/plugins/vlc_common.h> |
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| 32 | #include <vlc/plugins/vlc_fourcc.h> |
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| 33 | |
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| 34 | namespace Phonon { |
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| 35 | namespace VLC { |
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| 36 | |
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| 37 | class MediaPlayer; |
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| 38 | |
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| 39 | class VideoMemoryStream |
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| 40 | { |
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| 41 | public: |
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| 42 | explicit VideoMemoryStream(); |
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| 43 | virtual ~VideoMemoryStream(); |
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| 44 | |
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| 45 | /** |
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| 46 | * @returns overall buffersize needed |
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| 47 | */ |
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| 48 | static unsigned setPitchAndLines(uint32_t fourcc, |
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| 49 | unsigned width, unsigned height, |
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| 50 | unsigned *pitches, unsigned *lines); |
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| 51 | |
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| 52 | void setCallbacks(Phonon::VLC::MediaPlayer *player); |
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| 53 | void unsetCallbacks(Phonon::VLC::MediaPlayer *player); |
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| 54 | |
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| 55 | protected: |
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| 56 | virtual void *lockCallback(void **planes) = 0; |
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| 57 | virtual void unlockCallback(void *picture,void *const *planes) = 0; |
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| 58 | virtual void displayCallback(void *picture) = 0; |
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| 59 | |
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| 60 | virtual unsigned formatCallback(char *chroma, |
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| 61 | unsigned *width, unsigned *height, |
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| 62 | unsigned *pitches, |
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| 63 | unsigned *lines) = 0; |
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| 64 | virtual void formatCleanUpCallback() = 0; |
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| 65 | |
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| 66 | private: |
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| 67 | static void *lockCallbackInternal(void *opaque, void **planes); |
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| 68 | static void unlockCallbackInternal(void *opaque, void *picture, void *const *planes); |
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| 69 | static void displayCallbackInternal(void *opaque, void *picture); |
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| 70 | |
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| 71 | static unsigned formatCallbackInternal(void **opaque, char *chroma, |
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| 72 | unsigned *width, unsigned *height, |
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| 73 | unsigned *pitches, |
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| 74 | unsigned *lines); |
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| 75 | static void formatCleanUpCallbackInternal(void *opaque); |
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| 76 | |
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| 77 | }; |
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| 78 | |
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| 79 | } // namespace VLC |
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| 80 | } // namespace Phonon |
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| 81 | |
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| 82 | #endif // PHONON_VLC_VIDEOMEMORYSTREAM_H |
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| 83 | |
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