1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/raw/RawStructs.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,60 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#if !defined(RawStructs_h_)
1.9 +#define RawStructs_h_
1.10 +
1.11 +static const uint32_t RAW_ID = 0x595556;
1.12 +
1.13 +struct nsRawVideo_PRUint24 {
1.14 + operator uint32_t() const { return value[2] << 16 | value[1] << 8 | value[0]; }
1.15 + nsRawVideo_PRUint24& operator= (const uint32_t& rhs)
1.16 + { value[2] = (rhs & 0x00FF0000) >> 16;
1.17 + value[1] = (rhs & 0x0000FF00) >> 8;
1.18 + value[0] = (rhs & 0x000000FF);
1.19 + return *this; }
1.20 +private:
1.21 + uint8_t value[3];
1.22 +};
1.23 +
1.24 +struct RawPacketHeader {
1.25 + typedef nsRawVideo_PRUint24 PRUint24;
1.26 + uint8_t packetID;
1.27 + PRUint24 codecID;
1.28 +};
1.29 +
1.30 +// This is Arc's draft from wiki.xiph.org/OggYUV
1.31 +struct RawVideoHeader {
1.32 + typedef nsRawVideo_PRUint24 PRUint24;
1.33 + uint8_t headerPacketID; // Header Packet ID (always 0)
1.34 + PRUint24 codecID; // Codec identifier (always "YUV")
1.35 + uint8_t majorVersion; // Version Major (breaks backwards compat)
1.36 + uint8_t minorVersion; // Version Minor (preserves backwards compat)
1.37 + uint16_t options; // Bit 1: Color (false = B/W)
1.38 + // Bits 2-4: Chroma Pixel Shape
1.39 + // Bit 5: 50% horizontal offset for Cr samples
1.40 + // Bit 6: 50% vertical ...
1.41 + // Bits 7-8: Chroma Blending
1.42 + // Bit 9: Packed (false = Planar)
1.43 + // Bit 10: Cr Staggered Horizontally
1.44 + // Bit 11: Cr Staggered Vertically
1.45 + // Bit 12: Unused (format is always little endian)
1.46 + // Bit 13: Interlaced (false = Progressive)
1.47 + // Bits 14-16: Interlace options (undefined)
1.48 +
1.49 + uint8_t alphaChannelBpp;
1.50 + uint8_t lumaChannelBpp;
1.51 + uint8_t chromaChannelBpp;
1.52 + uint8_t colorspace;
1.53 +
1.54 + PRUint24 frameWidth;
1.55 + PRUint24 frameHeight;
1.56 + PRUint24 aspectNumerator;
1.57 + PRUint24 aspectDenominator;
1.58 +
1.59 + uint32_t framerateNumerator;
1.60 + uint32_t framerateDenominator;
1.61 +};
1.62 +
1.63 +#endif // RawStructs_h_
