我正在尝试流式传输到youtube，但流健康状况显示没有数据。
ffmpeg -threads:v 2 -threads:a 8 -filter_threads 2 -thread_queue_size 512
-i /tmp/thumbs/thumbnail.jpg
-stream_loop -1
-i /tmp/audio/tracks.mp3
-filter:v "crop=in_w/2:in_h/2:1920:1280"
-pix_fmt yuv420p -c:v libx264 -qp:v 19 -profile:v high -rc:v cbr_ld_hq -level:v 4.2 -r:v 60 -g:v 120 -bf:v 3 -refs:v 16 -preset fast -f flv rtmp://a.rtmp.youtube.com/live2/xxx
ffmpeg呈现的帧如下：
frame= 1 fps=0.0 q=0.0 size= 236220kB time=04:02:50.73 bitrate= 132.8kbits/s speed=67.3x
frame= 1 fps=0.0 q=0.0 size= 236872kB time=04:03:30.90 bitrate= 132.8kbits/s speed=67.3x
frame= 1 fps=0.0 q=0.0 size= 237539kB time=04:04:12.02 bitrate= 132.8kbits/s speed=67.3x
frame= 1 fps=0.0 q=0.0 size= 238215kB time=04:04:53.69 bitrate= 132.8kbits/s speed=67.4x
frame= 1 fps=0.0 q=0.0 size= 238869kB time=04:05:34.05 bitrate= 132.8kbits/s speed=67.4x
frame= 1 fps=0.0 q=0.0 size= 239515kB time=04:06:13.83 bitrate= 132.8kbits/s speed=67.4x
frame= 1 fps=0.0 q=0.0 size= 240153kB time=04:06:53.14 bitrate= 132.8kbits/s speed=67.5x
但就youtube而言，没有任何数据被发送出去。
是什么导致了这个失败？
在实时读取时循环图像(-loop 1((-re(，而不是尽可能快：
-loop 1 -re -i /tmp/thumbs/thumbnail.jpg