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