ffmpeg \
-loop 1 \
-f image2 \
-framerate 1 \
-thread_queue_size 512 \
-i img_0.jpg \
-i audio.mp3 \
-acodec libfdk_aac \
-ar 44100 \
-b:a 128k \
-vcodec libx264 \
-pix_fmt yuv420p \
-vf scale=640:480 \
-preset medium \
-f flv \
"rtmp://rtmp-api.facebook.com:80/rtmp/XXXXXXX"