michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #if !defined(RawStructs_h_)
michael@0: #define RawStructs_h_
michael@0: 
michael@0: static const uint32_t RAW_ID = 0x595556;
michael@0: 
michael@0: struct nsRawVideo_PRUint24 {
michael@0:   operator uint32_t() const { return value[2] << 16 | value[1] << 8 | value[0]; }
michael@0:   nsRawVideo_PRUint24& operator= (const uint32_t& rhs)
michael@0:   { value[2] = (rhs & 0x00FF0000) >> 16;
michael@0:     value[1] = (rhs & 0x0000FF00) >> 8;
michael@0:     value[0] = (rhs & 0x000000FF);
michael@0:     return *this; }
michael@0: private:
michael@0:   uint8_t value[3];
michael@0: };
michael@0: 
michael@0: struct RawPacketHeader {
michael@0:   typedef nsRawVideo_PRUint24 PRUint24;
michael@0:   uint8_t packetID;
michael@0:   PRUint24 codecID;
michael@0: };
michael@0: 
michael@0: // This is Arc's draft from wiki.xiph.org/OggYUV
michael@0: struct RawVideoHeader {
michael@0:   typedef nsRawVideo_PRUint24 PRUint24;
michael@0:   uint8_t headerPacketID;          // Header Packet ID (always 0)
michael@0:   PRUint24 codecID;                // Codec identifier (always "YUV")
michael@0:   uint8_t majorVersion;            // Version Major (breaks backwards compat)
michael@0:   uint8_t minorVersion;            // Version Minor (preserves backwards compat)
michael@0:   uint16_t options;                // Bit 1: Color (false = B/W)
michael@0:                                    // Bits 2-4: Chroma Pixel Shape
michael@0:                                    // Bit 5: 50% horizontal offset for Cr samples
michael@0:                                    // Bit 6: 50% vertical ...
michael@0:                                    // Bits 7-8: Chroma Blending
michael@0:                                    // Bit 9: Packed (false = Planar)
michael@0:                                    // Bit 10: Cr Staggered Horizontally
michael@0:                                    // Bit 11: Cr Staggered Vertically
michael@0:                                    // Bit 12: Unused (format is always little endian)
michael@0:                                    // Bit 13: Interlaced (false = Progressive)
michael@0:                                    // Bits 14-16: Interlace options (undefined)
michael@0: 
michael@0:   uint8_t alphaChannelBpp;
michael@0:   uint8_t lumaChannelBpp;
michael@0:   uint8_t chromaChannelBpp;
michael@0:   uint8_t colorspace;
michael@0: 
michael@0:   PRUint24 frameWidth;
michael@0:   PRUint24 frameHeight;
michael@0:   PRUint24 aspectNumerator;
michael@0:   PRUint24 aspectDenominator;
michael@0: 
michael@0:   uint32_t framerateNumerator;
michael@0:   uint32_t framerateDenominator;
michael@0: };
michael@0: 
michael@0: #endif // RawStructs_h_