From b0bb06dff7662a5df5c9d760682345c73ebaec72 Mon Sep 17 00:00:00 2001 From: cxh Date: Fri, 9 Jan 2026 09:53:29 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E7=AE=A1=E7=BA=BF?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/rtmp_manager.cpp | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/src/rtmp_manager.cpp b/src/rtmp_manager.cpp index 46422a0..bb3a858 100644 --- a/src/rtmp_manager.cpp +++ b/src/rtmp_manager.cpp @@ -114,34 +114,30 @@ std::string RTMPManager::make_key(const std::string& name) { return name + "_mai GstElement* RTMPManager::create_pipeline(const Camera& cam) { const int fps = 30; - const int bitrate = cam.bitrate; // 3.5M~4M - const int gop = 4; + const int bitrate = cam.bitrate; + const int gop = 15; // ⭐ 从 4 改为 15（非常重要） const std::string stream_name = cam.name; const std::string rtmp_url = "rtmp://127.0.0.1:1935/" + stream_name; - std::string pipeline_str = "v4l2src name=src device=" + cam.device + + std::string pipeline_str = "v4l2src device=" + cam.device + " io-mode=dmabuf " - // 原始 4:3 输入 "! video/x-raw,format=NV12," "width=1280,height=960," "framerate=30/1 " - // ⭐ 裁成 16:9（上下各裁 120） "! videocrop top=120 bottom=120 " - // 可选：如果你想输出非 1280x720（比如 960x540） "! videoscale " "! video/x-raw," "width=" + std::to_string(cam.width) + ",height=" + std::to_string(cam.height) + " " - // 队列（建议后面再把 leaky 去掉） - "! queue max-size-buffers=2 max-size-time=0 leaky=downstream " + // ⭐ 缓冲拉开，避免瞬时饿死 + "! queue max-size-buffers=8 max-size-time=0 leaky=downstream " - // 编码 "! mpph264enc " "rc-mode=cbr " "bps=" + @@ -155,6 +151,7 @@ GstElement* RTMPManager::create_pipeline(const Camera& cam) "! h264parse config-interval=1 " "! video/x-h264,stream-format=avc,alignment=au " + "! flvmux streamable=true " "! rtmpsink location=\"" +