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cxh 2026-01-09 10:10:52 +08:00
parent b6fd603408
commit e3c2778530
1 changed files with 13 additions and 0 deletions
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13
src/rtmp_manager.cpp
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@ -59,15 +59,26 @@ GstElement* RTMPManager::create_pipeline(const Camera& cam)
std::string pipeline_str = "v4l2src device=" + cam.device + std::string pipeline_str = "v4l2src device=" + cam.device +
" io-mode=dmabuf " " io-mode=dmabuf "
// 原始输入
"! video/x-raw,format=NV12,width=1280,height=960,framerate=30/1 " "! video/x-raw,format=NV12,width=1280,height=960,framerate=30/1 "
// 裁剪 + 缩放
"! videocrop top=120 bottom=120 " "! videocrop top=120 bottom=120 "
"! videoscale " "! videoscale "
// ⭐ 关键：在 RAW 阶段强制重打时钟（修复“看着一顿”）
"! videorate "
"! video/x-raw,framerate=30/1 "
// 输出分辨率
"! video/x-raw,width=" + "! video/x-raw,width=" +
std::to_string(cam.width) + ",height=" + std::to_string(cam.height) + std::to_string(cam.width) + ",height=" + std::to_string(cam.height) +
" " " "
// 缓冲
"! queue max-size-buffers=8 max-size-time=0 leaky=downstream " "! queue max-size-buffers=8 max-size-time=0 leaky=downstream "
// 编码
"! mpph264enc rc-mode=cbr " "! mpph264enc rc-mode=cbr "
"bps=" + "bps=" +
std::to_string(cam.bitrate) + std::to_string(cam.bitrate) +
@ -77,9 +88,11 @@ GstElement* RTMPManager::create_pipeline(const Camera& cam)
" " " "
"header-mode=each-idr profile=main " "header-mode=each-idr profile=main "
// H264 处理
"! h264parse name=parse config-interval=1 " "! h264parse name=parse config-interval=1 "
"! video/x-h264,stream-format=avc,alignment=au " "! video/x-h264,stream-format=avc,alignment=au "
// RTMP
"! flvmux streamable=true " "! flvmux streamable=true "
"! rtmpsink location=\"" + "! rtmpsink location=\"" +
rtmp_url + "\" sync=false async=false"; rtmp_url + "\" sync=false async=false";