Feature: Implement H.264 and AV1 hardware encoding for remote control

Remark: Need to update FFmpeg static libraries to take effort

client/X264Encoder.cpp

@@ -3,10 +3,11 @@
 #include <stdio.h>
 
 #if DISABLE_X264_FOR_TEST
-CX264Encoder::CX264Encoder() { memset(&m_Param, 0, sizeof(m_Param)); m_pCodec = NULL; m_pPicIn = NULL; m_pPicOut = NULL; }
+CX264Encoder::CX264Encoder() { memset(&m_Param, 0, sizeof(m_Param)); m_pCodec = NULL; m_pPicIn = NULL; m_pPicOut = NULL; m_forceIDR = false; }
 CX264Encoder::~CX264Encoder() {}
 bool CX264Encoder::open(int, int, int, int) { return false; }
 bool CX264Encoder::open(x264_param_t*) { return false; }
+bool CX264Encoder::open(const EncoderParams&) { return false; }
 void CX264Encoder::close() {}
 int CX264Encoder::encode(uint8_t*, uint8_t, uint32_t, uint32_t, uint32_t, uint8_t**, uint32_t*, int) { return -1; }
 
@@ -25,6 +26,7 @@ CX264Encoder::CX264Encoder()
     m_pCodec = NULL;
     m_pPicIn = NULL;
     m_pPicOut = NULL;
+    m_forceIDR = false;
 }
 
 
@@ -88,6 +90,14 @@ bool CX264Encoder::open(x264_param_t * param)
 }
 
 
+bool CX264Encoder::open(const EncoderParams& params)
+{
+    // x264 软编只支持 CRF；调用方走 BITRATE 时降级为 CRF=23（与 BitRateToCRF 默认一致）
+    int crf = (params.rc == RateControl::CRF) ? params.crf : 23;
+    return open(params.width, params.height, params.fps, crf);
+}
+
+
 void CX264Encoder::close()
 {
     if (m_pCodec) {
@@ -146,6 +156,12 @@ int CX264Encoder::encode(
         return -2;
     }
 
+    if (m_forceIDR) {
+        m_pPicIn->i_type = X264_TYPE_IDR;
+        m_forceIDR = false;
+    } else {
+        m_pPicIn->i_type = X264_TYPE_AUTO;
+    }
 
     encode_size = x264_encoder_encode(
                       m_pCodec,