刚接触 ffmpeg 并阅读了十几个指南和操作方法，但仍然无法使其工作。
我有一个 Tvheadend 服务器，可以从 DVB 接收频道，这些频道运行没有任何问题，但我需要对其进行转码，以便您可以在我家外面看到该频道。
我尝试在更强大的服务器（ubuntu 18.08）上使用 ffmpeg 安装 nginx+rtmp 模块，但无论我做什么，似乎都无法让它工作。
这是我正在尝试的：
ffmpeg -f mpegts -i http://username:[email protected]:4445/stream/channelid/9 -deinterlace -vcodec libx264 -vb 1000k -acodec libfacc -ar 48000 -ab 48k -f flv rtmp://192.168.0.58:1935/test
源是 tvheadend 服务器，rtmp 服务器是将要进行转码的 ffmpeg。
ffmpeg version 3.4.2-2 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7 (Ubuntu 7.3.0-16ubuntu2)
configuration: --prefix=/usr --extra-version=2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
[h264 @ 0x557f8caccca0] SPS unavailable in decode_picture_timing
[h264 @ 0x557f8caccca0] non-existing PPS 0 referenced
[h264 @ 0x557f8caccca0] SPS unavailable in decode_picture_timing
[h264 @ 0x557f8caccca0] non-existing PPS 0 referenced
[h264 @ 0x557f8caccca0] decode_slice_header error
[h264 @ 0x557f8caccca0] no frame!
[h264 @ 0x557f8caccca0] SPS unavailable in decode_picture_timing
[h264 @ 0x557f8caccca0] non-existing PPS 0 referenced
[h264 @ 0x557f8caccca0] SPS unavailable in decode_picture_timing
[h264 @ 0x557f8caccca0] non-existing PPS 0 referenced
[h264 @ 0x557f8caccca0] decode_slice_header error
[h264 @ 0x557f8caccca0] no frame!
[h264 @ 0x557f8caccca0] SPS unavailable in decode_picture_timing
[h264 @ 0x557f8caccca0] non-existing PPS 0 referenced
[h264 @ 0x557f8caccca0] SPS unavailable in decode_picture_timing
[h264 @ 0x557f8caccca0] non-existing PPS 0 referenced
[h264 @ 0x557f8caccca0] decode_slice_header error
[h264 @ 0x557f8caccca0] no frame!
[h264 @ 0x557f8caccca0] SPS unavailable in decode_picture_timing
[h264 @ 0x557f8caccca0] non-existing PPS 0 referenced
[h264 @ 0x557f8caccca0] SPS unavailable in decode_picture_timing
[h264 @ 0x557f8caccca0] non-existing PPS 0 referenced
[h264 @ 0x557f8caccca0] decode_slice_header error
[h264 @ 0x557f8caccca0] no frame!
[mp3 @ 0x557f8cacdee0] Header missing
Input #0, mpegts, from 'http://username:[email protected]:4445/stream/channelid/14':
Duration: N/A, start: 71505.814511, bitrate: N/A
Program 1
Metadata:
service_name : ?
service_provider: ?
Stream #0:0[0x50f]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg, top first), 704x576 [SAR 16:11 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0xd10](dan): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 256 kb/s
Unknown encoder 'libfacc'
更新：只需将音频编解码器更改为 aac，但现在我得到了这个
ffmpeg version 3.4.2-2 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7 (Ubuntu 7.3.0-16ubuntu2)
configuration: --prefix=/usr --extra-version=2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
[mp3 @ 0x5572191f6de0] Header missing
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] SPS unavailable in decode_picture_timing
[h264 @ 0x5572191f5ba0] non-existing PPS 0 referenced
[h264 @ 0x5572191f5ba0] decode_slice_header error
[h264 @ 0x5572191f5ba0] no frame!
[h264 @ 0x5572191f5ba0] Increasing reorder buffer to 2
Input #0, mpegts, from 'http://username:[email protected]:4445/stream/channelid/9':
Duration: N/A, start: 79841.014511, bitrate: N/A
Program 1
Metadata:
service_name : ?
service_provider: ?
Stream #0:0[0x50f]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg, top first), 704x576 [SAR 16:11 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0xd10](dan): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 256 kb/s
[tcp @ 0x5572194ef060] Connection to tcp://192.168.0.58:1935 failed: Connection refused
[rtmp @ 0x5572194b65e0] Cannot open connection tcp://192.168.0.58:1935
rtmp://192.168.0.58:1935/test: Connection refused
答案1
楼主通过重新安装nginx-rtmp模块解决了这个问题，确保使用 RTMP 端口已打开netstat -altun。他还确保 ffmpeg 的字符串与 nignx 服务器相同。