我试图写一个集成测试，实际上需要RTMP流的第三方服务。 如何生成使用的ffmpeg命令的RTMP测试流？ 似乎是一个正确的答案，但我不能得到它的工作。
作为一个基准，无需RTMP， ffmpeg -f lavfi -i testsrc -t 30 -pix_fmt yuv420p test.mp4工作。
ffmpeg -f lavfi -i testsrc -t 30 -pix_fmt yuv420p -f flv rtmp://mylocation给我的错误rtmp://mylocation: Input/output error
我要指出的是，网址是有效的，否则我得到一个错误说，它不能打开一个连接。
我也试过ffmpeg -f lavfi -i testsrc -pix_fmt yuv420p -f flv rtmp://mylocatiom 。 我读了，如果你不提供时间，如此下去永远觉得我可能需要，对于一个RTMP流。 我得到了同样的错误。
下面是从最后一次尝试全力输出，以如下面@Gyan建议，具有详细记录一起加入PARAMS。
ffmpeg -loglevel verbose -f lavfi -i testsrc -pix_fmt yuv420p -f flv -c:v libx264 -g 50 rtmp://myhost:1935/identifier
ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gpl --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-opencl --enable-videotoolbox
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
[Parsed_testsrc_0 @ 0x7fddf34022c0] size:320x240 rate:25/1 duration:-1.000000 sar:1/1
Input #0, lavfi, from 'testsrc':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo, 1 reference frame (RGB[24] / 0x18424752), rgb24, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
[tcp @ 0x7fddf3404880] Starting connection attempt to {theIP} port 1935
[tcp @ 0x7fddf3404880] Successfully connected to {theIP} port 1935
rtmp://myhost:1935/identifier: Input/output error
更新到debug添加一些像这样的更多的数据错误之前：
[tcp @ 0x7fc4e1601a00] Starting connection attempt to 34.224.30.155 port 1935
[tcp @ 0x7fc4e1601a00] Successfully connected to 34.224.30.155 port 1935
[rtmp @ 0x7fc4e1411200] Handshaking...
[rtmp @ 0x7fc4e1411200] Type answer 3
[rtmp @ 0x7fc4e1411200] Server version 3.0.1.1
[rtmp @ 0x7fc4e1411200] Proto = rtmp, path = /identifier, app = identifier, fname =
[rtmp @ 0x7fc4e1411200] Window acknowledgement size = 2500000
[rtmp @ 0x7fc4e1411200] Max sent, unacked = 2500000
[rtmp @ 0x7fc4e1411200] New incoming chunk size = 4096
[rtmp @ 0x7fc4e1411200] Releasing stream...
[rtmp @ 0x7fc4e1411200] FCPublish stream...
[rtmp @ 0x7fc4e1411200] Creating stream...
[rtmp @ 0x7fc4e1411200] Sending publish command for ''
rtmp://myhost:1935/identifier: Input/output error
Sending publish command for ''的嫌疑，但不知道该怎么做了一番。
