The Killer's Game Openh264 Guide
for (int i = 0; i < info.iLayerNum; i++) SLayerBSInfo& layer = info.sLayerInfo[i]; // Write layer.pBsBuf to file or network
encoder->Initialize(¶m); OpenH264 expects YUV 4:2:0. Convert your frame buffer: the killer's game openh264
Set iUsageType = SCREEN_CONTENT_REAL_TIME for low-motion UI overlays (health bars, maps). Use constant bitrate to avoid network spikes. 5. Common Pitfalls & Fixes | Problem | Solution | |---------|----------| | High CPU usage | Reduce resolution or use iRCMode = RC_QUALITY_MODE | | Color shift | Ensure correct RGB↔YUV matrix (BT.709 for HDTV) | | Dropped frames | Increase iMaxNalSz and use EncodeParameterSets() before first frame | | Audio sync | Store PTS (presentation timestamps) separately — H.264 stream has no audio | 6. Legal & Licensing Note OpenH264 is BSD 2-Clause — free for commercial use. However, it uses patents from MPEG LA, but Cisco provides a patent license when using the binary form from their official distribution. for (int i = 0; i < info
make OS=windows ARCH=x86_64 Link libopenh264.dll or static .lib into your game engine. #include "codec_api.h" ISVCEncoder* encoder = nullptr; WelsCreateSVCEncoder(&encoder); However, it uses patents from MPEG LA, but
// Assuming game gives you RGB24 void RGB24toYUV420(uint8_t* rgb, uint8_t* yuv, int width, int height) // Standard conversion matrix (BT.601) for (int i = 0; i < width * height; i++) int r = rgb[3*i]; int g = rgb[3*i+1]; int b = rgb[3*i+2]; yuv[i] = (66*r + 129*g + 25*b + 128)>>8 + 16; // Y // ... U/V planes