ffmpegを使用してカメラフィードをRTMPサーバーに（再）ストリーミングする
これが取引です、私はライブストリーミングしようとしている複数の安い中国のWiFiカメラを持っています。
カメラにはWebインターフェイスがあり、（私の知る限り）RTSPストリームがありません。カメラはhttp://admin:@[camip]/media/?action=streamにMJPEGエンコードされたストリームを出力し、VLCを使用して正常に接続します。
OBSを使用してVLCソースを追加し、OBSを使用してYoutubeに直接ストリーミングすることはできますが、それは問題なく機能しますが、複数のカメラを独自のストリームにストリーミングしたいので理想的ではありません。
OBSを使用すると、次のストリーミング設定があり、すべてが機能します
Video bitrate: 750 Kbps
Encoder: Software (x264)
Audio bitrate: 160
Ffmpegを使用してストリームに接続でき、入力ストリームが表示されます
Input #0, mjpeg, from 'http://admin:@192.168.0.65/media/?action=stream';
Duration: N/A, bitrate: N/A
Stream #0:0 Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], 25 tbr, 1200k tbn, 25 tbc
次のステップは、その入力ストリームを取得して、Youtube Live（または実際にはプライベートYouPHPTubeサーバーですが同じ構成）に再ストリーミングすることです。
私はたくさんのことを試しましたが、出力の速度が本当に遅いなどの奇妙な問題に遭遇し続けています（または少なくともそれが示されていると思います、そしてYoutubeはストリームを拾いません）...
ffmpeg \
-f mjpeg \
-i "http://admin:@192.168.0.65/media/?action=stream" \
-f h264 "rtmp://a.rtmp.youtube.com/live2/[streamkey]"
Output #0, h264, to 'rtmp://a.rtmp.youtube.com/live2/[streamkey]':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: mpeg2video (Main), yuv420p, 720x480 [SAR 32:27 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc57.107.100 mpeg2video
Side data:
cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame= 577 fps=4.2 q=24.8 Lsize= 994kB time=00:00:23.04 bitrate= 353.6kbits/s speed=0.167x
誰かが私を助けて、私が間違っていることを教えて、私のOBSセットアップまたは機能するものと同じ出力設定でffmpegをリストリームさせる方法を教えてもらえますか？
前もって感謝します！
編集：完全なログが追加されました
ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --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
Input #0, mjpeg, from 'http://admin:@192.168.0.65/media/?action=stream':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], 25 tbr, 1200k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x55e716cbe200] using SAR=1/1
[libx264 @ 0x55e716cbe200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x55e716cbe200] profile High, level 3.1
Output #0, h264, to 'rtmp://xxx/xxx/xxx':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (libx264), yuvj420p(pc), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc57.107.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 80 fps=4.2 q=-1.0 Lsize= 673kB time=00:00:03.12 bitrate=1766.8kbits/s speed=0.163x
video:673kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
[libx264 @ 0x55e716cbe200] frame I:1 Avg QP:24.70 size: 70939
[libx264 @ 0x55e716cbe200] frame P:20 Avg QP:24.70 size: 21910
[libx264 @ 0x55e716cbe200] frame B:59 Avg QP:26.67 size: 3049
[libx264 @ 0x55e716cbe200] consecutive B-frames: 1.2% 0.0% 3.8% 95.0%
[libx264 @ 0x55e716cbe200] mb I I16..4: 1.9% 93.4% 4.6%
[libx264 @ 0x55e716cbe200] mb P I16..4: 0.0% 1.7% 0.0% P16..4: 51.7% 15.9% 12.4% 0.0% 0.0% skip:18.4%
[libx264 @ 0x55e716cbe200] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 36.6% 0.6% 0.0% direct: 0.5% skip:62.3% L0:51.5% L1:47.8% BI: 0.7%
[libx264 @ 0x55e716cbe200] 8x8 transform intra:95.1% inter:82.3%
[libx264 @ 0x55e716cbe200] coded y,uvDC,uvAC intra: 92.8% 72.8% 26.8% inter: 14.3% 18.8% 0.2%
[libx264 @ 0x55e716cbe200] i16 v,h,dc,p: 11% 4% 0% 85%
[libx264 @ 0x55e716cbe200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 11% 18% 6% 9% 15% 7% 6% 12%
[libx264 @ 0x55e716cbe200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 10% 9% 7% 12% 18% 7% 6% 7%
[libx264 @ 0x55e716cbe200] i8c dc,h,v,p: 54% 19% 21% 6%
[libx264 @ 0x55e716cbe200] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x55e716cbe200] ref P L0: 35.0% 11.4% 41.4% 12.2%
[libx264 @ 0x55e716cbe200] ref B L0: 66.4% 25.9% 7.6%
[libx264 @ 0x55e716cbe200] ref B L1: 91.3% 8.7%
[libx264 @ 0x55e716cbe200] kb/s:1722.60
Exiting normally, received signal 2.
2番目の編集：新しい出力ログ新しいパラメーターで試行しましたが、それでも失敗します
ffmpeg \
-i "http://admin:@192.168.0.65/media/?action=stream" \
-re -f lavfi -i anullsrc \
-c:v libx264 -vf format=yuv420p -b:v 4000k -bufsize 8000k -maxrate 4000k -g 50 \
-c:a aac \
-f flv "rtmp://a.rtmp.youtube.com/live2/[streamkey]"
同じ結果で、YoutubeはYouTube is not receiving enough video to maintain smooth streaming. As such, viewers will experience buffering.を報告しますが、ストリームを取得することはなく、プライベートストリーミングサーバーもストリームを取得できません。
発生しているように見えるのは、出力ストリームが約4 fpsであるため、プライベートRTSPサーバーがストリームを拒否し、YouTubeが約1分間バッファリングした後（10倍の速度で再生）に3秒間のビデオを再生することです。
ffmpeg出力
$ ffmpeg -i 'http://admin:@192.168.0.65/media/?action=stream' -re -f lavfi -i anullsrc -c:v libx264 -vf format=yuv420p -b:v 4000k -bufsize 8000k -maxrate 4000k -g 50 -c:a aac -f flv 'rtmp://x.rtmp.youtube.com/live2/[stream-key-deducted]'
ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --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
Input #0, mpjpeg, from 'http://admin:@192.168.0.65/media/?action=stream':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
Input #1, lavfi, from 'anullsrc':
Duration: N/A, start: 0.000000, bitrate: 705 kb/s
Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Stream #1:0 -> #0:1 (pcm_u8 (native) -> aac (native))
Press [q] to stop, [?] for help
[swscaler @ 0x55b35ec1a920] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x55b35ebcd3e0] using SAR=1/1
[libx264 @ 0x55b35ebcd3e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x55b35ebcd3e0] profile High, level 3.1
[libx264 @ 0x55b35ebcd3e0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=50 keyint_min=5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=cbr mbtree=1 bitrate=4000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=4000 vbv_bufsize=8000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://x.rtmp.youtube.com/live2/[stream-key-deducted]':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 4000 kb/s, 25 fps, 1k tbn, 25 tbc
Metadata:
encoder : Lavc57.107.100 libx264
Side data:
cpb: bitrate max/min/avg: 4000000/0/4000000 buffer size: 8000000 vbv_delay: -1
Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc57.107.100 aac
[flv @ 0x55b35ebcbe00] Failed to update header with correct duration.053.5kbits/s speed=0.168x
[flv @ 0x55b35ebcbe00] Failed to update header with correct filesize.
frame= 1537 fps=4.3 q=-1.0 Lsize= 30371kB time=00:01:01.36 bitrate=4054.7kbits/s speed=0.172x
video:30283kB audio:15kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.240946%
[libx264 @ 0x55b35ebcd3e0] frame I:31 Avg QP:18.65 size:123400
[libx264 @ 0x55b35ebcd3e0] frame P:399 Avg QP:21.77 size: 44957
[libx264 @ 0x55b35ebcd3e0] frame B:1107 Avg QP:23.79 size: 8352
[libx264 @ 0x55b35ebcd3e0] consecutive B-frames: 4.0% 0.0% 0.0% 96.0%
[libx264 @ 0x55b35ebcd3e0] mb I I16..4: 0.4% 98.7% 1.0%
[libx264 @ 0x55b35ebcd3e0] mb P I16..4: 0.0% 3.5% 0.0% P16..4: 43.6% 28.2% 20.5% 0.0% 0.0% skip: 4.2%
[libx264 @ 0x55b35ebcd3e0] mb B I16..4: 0.0% 0.2% 0.0% B16..8: 35.2% 3.0% 0.7% direct: 5.1% skip:55.8% L0:51.7% L1:42.9% BI: 5.3%
[libx264 @ 0x55b35ebcd3e0] 8x8 transform intra:99.0% inter:75.4%
[libx264 @ 0x55b35ebcd3e0] coded y,uvDC,uvAC intra: 99.1% 93.6% 54.1% inter: 28.1% 35.6% 1.1%
[libx264 @ 0x55b35ebcd3e0] i16 v,h,dc,p: 87% 1% 2% 10%
[libx264 @ 0x55b35ebcd3e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 11% 19% 5% 10% 15% 7% 7% 12%
[libx264 @ 0x55b35ebcd3e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 9% 9% 6% 11% 18% 8% 7% 8%
[libx264 @ 0x55b35ebcd3e0] i8c dc,h,v,p: 57% 17% 18% 8%
[libx264 @ 0x55b35ebcd3e0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x55b35ebcd3e0] ref P L0: 30.6% 8.3% 48.4% 12.6%
[libx264 @ 0x55b35ebcd3e0] ref B L0: 63.2% 29.2% 7.6%
[libx264 @ 0x55b35ebcd3e0] ref B L1: 93.5% 6.5%
[libx264 @ 0x55b35ebcd3e0] kb/s:4034.99
[aac @ 0x55b35ebd0ec0] Qavg: 65536.000
Exiting normally, received signal 2.
編集3：ffmpegを4.2.1に更新、合成テストとリストリームテスト
V4.2.1にアップデートした後。問題は同じままですが、合成ビデオテストは流動的に実行されます...
合成出力
$ ffmpeg -re -f lavfi -i testsrc2=d=600:s=1280x720 -re -f lavfi -i anullsrc -c:v libx264 -vf format=yuv420p -b:v 4000k -bufsize 8000k -maxrate 4000k -g 50 -c:a aac -flags +global_header -f flv 'rtmp://192.168.0.91/live?p=[streamid]/[streamkey]'
ffmpeg version 4.2.1-0york0~18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
configuration: --prefix=/usr --extra-version='0york0~18.04.1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --Arch=AMD64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-nonfree --enable-libfdk-aac --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, lavfi, from 'testsrc2=d=600:s=1280x720':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
Input #1, lavfi, from 'anullsrc':
Duration: N/A, start: 0.000000, bitrate: 705 kb/s
Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Stream #1:0 -> #0:1 (pcm_u8 (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x564c9da28540] using SAR=1/1
[libx264 @ 0x564c9da28540] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x564c9da28540] profile High, level 3.1
[libx264 @ 0x564c9da28540] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=50 keyint_min=5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=cbr mbtree=1 bitrate=4000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=4000 vbv_bufsize=8000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://192.168.0.91/live?p=[streamid]/[streamkey]':
Metadata:
encoder : Lavf58.29.100
Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 4000 kb/s, 25 fps, 1k tbn, 25 tbc
Metadata:
encoder : Lavc58.54.100 libx264
Side data:
cpb: bitrate max/min/avg: 4000000/0/4000000 buffer size: 8000000 vbv_delay: -1
Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc58.54.100 aac
[flv @ 0x564c9da270c0] Failed to update header with correct duration.123.1kbits/s speed=0.936x
[flv @ 0x564c9da270c0] Failed to update header with correct filesize.
frame= 779 fps= 25 q=-1.0 Lsize= 15601kB time=00:00:31.04 bitrate=4117.3kbits/s speed=0.979x
video:15557kB audio:7kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.234822%
[libx264 @ 0x564c9da28540] frame I:16 Avg QP: 7.28 size: 39981
[libx264 @ 0x564c9da28540] frame P:361 Avg QP:20.22 size: 22060
[libx264 @ 0x564c9da28540] frame B:402 Avg QP:24.90 size: 18225
[libx264 @ 0x564c9da28540] consecutive B-frames: 8.7% 65.2% 6.5% 19.5%
[libx264 @ 0x564c9da28540] mb I I16..4: 66.1% 23.9% 10.0%
[libx264 @ 0x564c9da28540] mb P I16..4: 1.5% 3.1% 0.5% P16..4: 5.7% 4.7% 3.1% 0.0% 0.0% skip:81.4%
[libx264 @ 0x564c9da28540] mb B I16..4: 0.2% 0.4% 1.8% B16..8: 8.5% 3.1% 0.8% direct: 0.8% skip:84.4% L0:47.4% L1:39.8% BI:12.8%
[libx264 @ 0x564c9da28540] 8x8 transform intra:37.6% inter:26.4%
[libx264 @ 0x564c9da28540] coded y,uvDC,uvAC intra: 24.7% 29.3% 28.8% inter: 4.0% 7.1% 6.1%
[libx264 @ 0x564c9da28540] i16 v,h,dc,p: 94% 6% 1% 0%
[libx264 @ 0x564c9da28540] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 7% 75% 1% 0% 0% 0% 1% 0%
[libx264 @ 0x564c9da28540] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 17% 29% 10% 5% 6% 7% 7% 5%
[libx264 @ 0x564c9da28540] i8c dc,h,v,p: 83% 5% 11% 1%
[libx264 @ 0x564c9da28540] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x564c9da28540] ref P L0: 52.8% 7.6% 24.0% 15.6%
[libx264 @ 0x564c9da28540] ref B L0: 72.2% 25.3% 2.4%
[libx264 @ 0x564c9da28540] ref B L1: 97.3% 2.7%
[libx264 @ 0x564c9da28540] kb/s:4089.76
[aac @ 0x564c9da29bc0] Qavg: 65536.000
MJPEGカメラのリストリーム出力
$ ffmpeg -i 'http://admin:@192.168.0.65/media/?action=stream' -re -f lavfi -i anullsrc -c:v libx264 -vf format=yuv420p -b:v 4000k -bufsize 8000k -maxrate 4000k -g 50 -c:a aac -flags +global_header -f flv 'rtmp://192.168.0.91/live?p=[streamid]/[streamkey]'
ffmpeg version 4.2.1-0york0~18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
configuration: --prefix=/usr --extra-version='0york0~18.04.1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --Arch=AMD64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-nonfree --enable-libfdk-aac --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, mpjpeg, from 'http://admin:@192.168.0.65/media/?action=stream':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
Input #1, lavfi, from 'anullsrc':
Duration: N/A, start: 0.000000, bitrate: 705 kb/s
Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Stream #1:0 -> #0:1 (pcm_u8 (native) -> aac (native))
Press [q] to stop, [?] for help
[swscaler @ 0x55b731e022c0] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x55b731db6400] using SAR=1/1
[libx264 @ 0x55b731db6400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x55b731db6400] profile High, level 3.1
[libx264 @ 0x55b731db6400] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=50 keyint_min=5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=cbr mbtree=1 bitrate=4000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=4000 vbv_bufsize=8000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://192.168.0.91/live?p=618a569164672a82c0303495387593f0/5db8eeea4be0b':
Metadata:
encoder : Lavf58.29.100
Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 4000 kb/s, 25 fps, 1k tbn, 25 tbc
Metadata:
encoder : Lavc58.54.100 libx264
Side data:
cpb: bitrate max/min/avg: 4000000/0/4000000 buffer size: 8000000 vbv_delay: -1
Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc58.54.100 aac
[flv @ 0x55b731db51c0] Failed to update header with correct duration.404.3kbits/s speed=0.119x
[flv @ 0x55b731db51c0] Failed to update header with correct filesize.
frame= 157 fps=4.2 q=-1.0 Lsize= 3178kB time=00:00:06.16 bitrate=4225.8kbits/s speed=0.163x
video:3170kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.207686%
[libx264 @ 0x55b731db6400] frame I:4 Avg QP:18.14 size:125881
[libx264 @ 0x55b731db6400] frame P:41 Avg QP:21.52 size: 43972
[libx264 @ 0x55b731db6400] frame B:112 Avg QP:23.61 size: 8388
[libx264 @ 0x55b731db6400] consecutive B-frames: 4.5% 1.3% 0.0% 94.3%
[libx264 @ 0x55b731db6400] mb I I16..4: 0.3% 98.2% 1.5%
[libx264 @ 0x55b731db6400] mb P I16..4: 0.1% 3.8% 0.0% P16..4: 42.6% 27.2% 20.2% 0.0% 0.0% skip: 6.1%
[libx264 @ 0x55b731db6400] mb B I16..4: 0.0% 0.4% 0.0% B16..8: 34.2% 3.0% 0.7% direct: 5.4% skip:56.2% L0:52.0% L1:42.1% BI: 5.8%
[libx264 @ 0x55b731db6400] 8x8 transform intra:98.2% inter:75.5%
[libx264 @ 0x55b731db6400] coded y,uvDC,uvAC intra: 93.0% 90.0% 55.7% inter: 27.5% 35.0% 1.5%
[libx264 @ 0x55b731db6400] i16 v,h,dc,p: 94% 0% 2% 4%
[libx264 @ 0x55b731db6400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 11% 18% 5% 9% 14% 6% 6% 12%
[libx264 @ 0x55b731db6400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 9% 8% 5% 9% 15% 6% 5% 9%
[libx264 @ 0x55b731db6400] i8c dc,h,v,p: 56% 17% 20% 7%
[libx264 @ 0x55b731db6400] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x55b731db6400] ref P L0: 32.1% 8.0% 47.4% 12.5%
[libx264 @ 0x55b731db6400] ref B L0: 63.3% 29.5% 7.3%
[libx264 @ 0x55b731db6400] ref B L1: 93.6% 6.4%
[libx264 @ 0x55b731db6400] kb/s:4134.76
[aac @ 0x55b731db87c0] Qavg: 65536.000
Exiting normally, received signal 2.
編集4：ある種の機能するコマンド次のコマンドでなんとか安定したものを得ることができました。誰かがこれが実際に機能する理由を説明できるかもしれません...
ffmpeg \
-y -r 4.2 \
-i "http://admin:@192.168.0.$1/media/?action=stream" \
-re -f lavfi -i anullsrc \
-c:v libx264 -vf format=yuv420p -b:v 4000k -bufsize 8000k -maxrate 4000k -g 50 \
-c:a aac \
-filter:v fps=fps=25 \
-f flv "rtmp://a.rtmp.youtube.com/live2/[streamkey]"
このコマンドを実行すると、出力ストリームは実際には4fpsではなく24fpsで実行されます。
frame= 577 fps=4.2 q=24.8 Lsize= 994kB time=00:00:23.04 bitrate= 353.6kbits/s speed=0.167x
vs
frame= 406 fps= 24 q=-1.0 Lsize= 7967kB time=00:00:16.12 bitrate=4048.5kbits/s speed=0.951x
ffmpeg \
-i "http://admin:@192.168.0.65/media/?action=stream" \
-re -f lavfi -i anullsrc \
-c:v libx264 -vf format=yuv420p -b:v 4000k -bufsize 8000k -maxrate 4000k -g 50 \
-c:a aac \
-f flv "rtmp://a.rtmp.youtube.com/live2/[streamkey]"
- YouTubeではオーディオストリームが存在する必要があるため、anullsrcフィルターを使用してサイレントオーディオを追加します。
- YouTubeはyuvj420pピクセルフォーマットを受け入れない可能性があるため（これは確認していません）、yuv420pに変更してください。
-f h264はオーディオでは使用できないため、-f flvを使用してください。- おそらく
-f mjpeg入力オプションは必要ありません。 - ストリーミングのビットレートとVBVオプションを宣言し、
-g値をフレームレートx2にします。