Lokal, von meinem Windows-Rechner mit ffmpeg 3.3.2 von Zeranoe (gleiches Ergebnis mit 4.0.2)
ffmpeg Version 3.2.2 Copyright (c) 2003-2016 die FFmpeg-Entwickler, erstellt mit gcc 5.4.0 (GCC)-Konfiguration: --enable-gpl --enable-version3 --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
Serverseitig
Starten Sie UDP-Multicast-Streaming.
ffmpeg -re -i video.ts -an -f mpegts -c copy udp://224.1.1.1:5000
Client-Seite
Die Wiedergabe mit ffplay ist korrekt, es werden keine Artefakte angezeigt, das Video ist flüssig
ffplay udp://224.1.1.1:5000
Wiedergabe nach der Dekodierung UrsacheArtefakte, Video ist beschädigt
ffmpeg -i udp://224.1.1.1:5000 -pix_fmt gray -f avi - | ffplay -
oder
ffmpeg -f mpegts -i udp://224.1.1.1:5000 -pix_fmt gray -c:v rawvideo -f avi out.avi
Hat jemand eine Erklärung?
Hier ist die Ausgabe der FFmpeg-Konsole:
ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
[h264 @ 0000000000c23f40] Invalid NAL unit 1, skipping.
[h264 @ 0000000000c23f40] cabac decode of qscale diff failed at 52 23
[h264 @ 0000000000c23f40] error while decoding MB 52 22, bytestream -16
[h264 @ 0000000000c23f40] concealing 5517 DC, 5517 AC, 5517 MV errors in P frame
[h264 @ 0000000000c23f40] Invalid NAL unit 1, skipping.
[h264 @ 0000000000c23f40] concealing 6939 DC, 6939 AC, 6939 MV errors in B frame
Input #0, mpegts, from 'udp://224.1.1.1:5000':
Duration: N/A, start: 1.520000, bitrate: N/A
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
File 'out.avi' already exists. Overwrite ? [y/N] y
Output #0, avi, to 'out.avi':
Metadata:
ISFT : Lavf57.56.100
Stream #0:0: Video: rawvideo (Y800 / 0x30303859), gray, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc57.64.101 rawvideo
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
Press [q] to stop, [?] for help
[h264 @ 0000000000c330e0] Invalid NAL unit 0, skipping.
[h264 @ 0000000003ba8260] Invalid NAL unit 0, skipping.
[h264 @ 0000000003ba8260] concealing 6939 DC, 6939 AC, 6939 MV errors in B frame
[h264 @ 0000000000c330e0] cabac decode of qscale diff failed at 52 23
[h264 @ 0000000000c330e0] error while decoding MB 52 22, bytestream -16
[h264 @ 0000000000c330e0] concealing 5517 DC, 5517 AC, 5517 MV errors in P frame
[h264 @ 0000000005990380] Invalid NAL unit 1, skipping.
[h264 @ 0000000000c32c40] Reference 2 >= 2
[h264 @ 0000000000c32c40] error while decoding MB 56 22, bytestream 503
[h264 @ 0000000000c32c40] concealing 5513 DC, 5513 AC, 5513 MV errors in B frame
[h264 @ 0000000005990380] error while decoding MB 14 64, bytestream -10
[h264 @ 0000000005990380] concealing 515 DC, 515 AC, 515 MV errors in P frame
[h264 @ 0000000003ba8260] Invalid NAL unit 6, skipping.2.68 bitrate=402359.1kbits/s speed=5.31x
[h264 @ 0000000003ba8260] error while decoding MB 81 34, bytestream -10
[h264 @ 0000000003ba8260] concealing 4048 DC, 4048 AC, 4048 MV errors in P frame
[h264 @ 0000000003ba8b00] Reference 2 >= 2
[h264 @ 0000000003ba8b00] error while decoding MB 7 0, bytestream 72352
[h264 @ 0000000003ba8b00] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame
[h264 @ 000000000599a860] Invalid NAL unit 0, skipping.
[h264 @ 000000000599a860] error while decoding MB 68 18, bytestream -25147.9kbits/s speed=4.75x
[h264 @ 000000000599a860] concealing 5981 DC, 5981 AC, 5981 MV errors in I frame
[h264 @ 00000000056c8f00] Reference 2 >= 2
[h264 @ 00000000056c8f00] error while decoding MB 94 10, bytestream 2535
[h264 @ 00000000056c8f00] concealing 6915 DC, 6915 AC, 6915 MV errors in B frame
[h264 @ 0000000000c32c40] Invalid NAL unit 1, skipping.
[h264 @ 0000000000c32c40] error while decoding MB 73 24, bytestream -10
[h264 @ 0000000000c32c40] concealing 5256 DC, 5256 AC, 5256 MV errors in P frame
[h264 @ 0000000000c330e0] Reference 3 >= 2
[h264 @ 0000000000c330e0] error while decoding MB 30 16, bytestream 1562
[h264 @ 0000000000c330e0] concealing 6259 DC, 6259 AC, 6259 MV errors in B frame
[h264 @ 0000000003ba8b00] Invalid NAL unit 0, skipping.8.56 bitrate=267443.2kbits/s speed=5.44x
[h264 @ 0000000003ba8b00] error while decoding MB 1 16, bytestream -15
[h264 @ 0000000003ba8b00] concealing 6288 DC, 6288 AC, 6288 MV errors in I frame
Antwort1
Ich hatte das gleiche Verhalten, und ich weiß nichtWarumes passiert, aber ich habe es gelöst, indem ich einen benutzerdefinierten Player geschrieben habe. Der Code ist enthalten inmeine Antwort auf SO.