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  • Streaming trouble, ffmpeg unable to find a suitable output format

    9 octobre 2018, par Michael Munyanyi

    FFMPEG for some odd reason won’t allow me to output a stream, it’s odd because I have two computers available and one, which had low CPU was having trouble decoding but the stream worked, so I switched my network cables and I have tried transcoding with the same command and it will not output a stream.

    My command reads

    ffmpeg -i udp://@xxx.x.x.xx.xxxx -f mpegts udp://@xxx.x.x.xx.xxxx

    I also tried

    ffmpeg -i udp://@xxx.x.x.xx.xxxx udp://@xxx.x.x.xx.xxxx

    The error reads

    [NULL @ 000001c95eeb2600] Unable to find a suitable output format for udp://@xxx.x.x.xx.xxxx'
    udp://@xxx.x.x.xx.xxxx: Invalid argument"

    full log

    C:\Users\xxx\Downloads\Installations\FFMPEG\bin>ffmpeg -i udp://@xxx.x.x.xx:xxxx -f mpegts udp://@xxx.x.x.xx.xxxx
    ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
     built with gcc 7.3.1 (GCC) 20180722
     configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
     libavutil      56. 14.100 / 56. 14.100
     libavcodec     58. 18.100 / 58. 18.100
     libavformat    58. 12.100 / 58. 12.100
     libavdevice    58.  3.100 / 58.  3.100
     libavfilter     7. 16.100 /  7. 16.100
     libswscale      5.  1.100 /  5.  1.100
     libswresample   3.  1.100 /  3.  1.100
     libpostproc    55.  1.100 / 55.  1.100
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] decode_slice_header error
    [h264 @ 000001c3a9dff900] no frame!
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] decode_slice_header error
    [h264 @ 000001c3a9dff900] no frame!
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] decode_slice_header error
    [h264 @ 000001c3a9dff900] no frame!
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] decode_slice_header error
    [h264 @ 000001c3a9dff900] no frame!
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] decode_slice_header error
    [h264 @ 000001c3a9dff900] no frame!
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    [h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    [h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    [h264 @ 000001c3a9dff900] decode_slice_header error
    [h264 @ 000001c3a9dff900] no frame!
    [mpegts @ 000001c3a9dea3c0] PES packet size mismatch
    [h264 @ 000001c3a9dff900] Reference 2 >= 2
    [h264 @ 000001c3a9dff900] error while decoding MB 62 39, bytestream 99129
    [h264 @ 000001c3a9dff900] reference picture missing during reorder
    [h264 @ 000001c3a9dff900] Missing reference picture, default is 65373
    Input #0, mpegts, from 'udp://@xxx.x.x.xx:xxxx':
     Duration: N/A, start: 87772.784411, bitrate: N/A
     Program 4030
       Metadata:
         service_name    : SONY TV HD
         service_provider: BSkyB
       Stream #0:0[0x208]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn, 50 tbc
       Stream #0:1[0x281](eng): Audio: ac3 ([6][0][0][0] / 0x0006), 48000 Hz, 5.1(side), fltp, 384 kb/s
       Stream #0:2[0x243](eng): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    [udp @ 000001c3aa7aaa00] getaddrinfo(xxx.x.x.xx.xxxx, 0): The name does not resolve for the supplied parameters
    udp://@xxx.x.x.xx.xxxx: I/O error
  • Tagline challenge : what’s in a tagline ?

    23 octobre 2018, par Joselyn Khor — Marketing

    thinking

    Our new website needs a new tagline !

    We’ve been going with the words “liberating analytics” for a few years and believe it’s time for a refresh.

    Coming up with a new tagline is leading to a few sleepless nights so we’ve decided to reach out to you guys to see if you’re up for a challenge.

    We’ve tried a few options but they don’t seem quite right, just yet :

    “Complete analytics”
    “All-in-one analytics”
    “Your analytics”
    “Beyond analytics”
    “Analytics for humans”

    We’ve gone through about 46 so far and none have stuck so we want your ideas. Are you feeling the options above, or can you (surely) come up with one even better ?

    Leave it in the comments section of our Mastodon, Facebook, Twitter pages, DM or post about it. You can also get in touch through the site ! Do whatever is necessary to let us know. Have what it takes to think of a tagline for a global analytics company ?

  • FFMPEG output duration using "-t" is too long by 10 ms

    9 octobre 2018, par Ze'ev

    I’m using this command to take video from a 35 second QuickTime file and replace audio with a WAV :

    ffmpeg -i 'video.mov' -i 'audio.wav' -c:v copy -c:a copy -map 0:v:0 -map 1:a:0 -t 35.0000 'output.mov'

    But the audio is slightly longer than the video, and I’m trying to make ffmpeg trim the output to exactly 35 seconds with -t 35 but the output is 35.01 seconds.

    I also tried -t 35.000 and -to 35 and several other options, but it’s alway 10ms too long.

    ffmpeg output :

    ffmpeg version N-91789-g11cec34829 Copyright (c) 2000-2018 the FFmpeg developers
     built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
     configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-appkit --enable-avfoundation --enable-coreimage --enable-audiotoolbox
     libavutil      56. 19.100 / 56. 19.100
     libavcodec     58. 27.101 / 58. 27.101
     libavformat    58. 17.106 / 58. 17.106
     libavdevice    58.  4.101 / 58.  4.101
     libavfilter     7. 26.100 /  7. 26.100
     libswscale      5.  2.100 /  5.  2.100
     libswresample   3.  2.100 /  3.  2.100
     libpostproc    55.  2.100 / 55.  2.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mov':
     Metadata:
       major_brand     : qt  
       minor_version   : 537199360
       compatible_brands: qt  
       creation_time   : 2018-10-09T13:41:49.000000Z
     Duration: 00:00:35.00, start: 0.000000, bitrate: 172467 kb/s
       Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le(tv, bt709, progressive), 1920x1080, 170692 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
       Metadata:
         creation_time   : 2018-10-09T13:41:49.000000Z
         handler_name    : Apple Video Media Handler
         encoder         : Apple ProRes 422 (HQ)
         timecode        : 00:01:12:22
       Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
       Metadata:
         creation_time   : 2018-10-09T13:41:49.000000Z
         handler_name    : Apple Sound Media Handler
         timecode        : 00:01:12:22
       Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
       Metadata:
         creation_time   : 2018-10-09T13:41:49.000000Z
         handler_name    : Time Code Media Handler
         timecode        : 00:01:12:22
    Guessed Channel Layout for Input Stream #1.0 : stereo
    Input #1, wav, from 'audio.wav':
     Metadata:
       encoded_by      : Pro Tools
       originator_reference: aaygKpJ1bvMk
       date            : 2018-10-02
       creation_time   : 12:29:34
       time_reference  : 172800000
     Duration: 00:00:35.04, bitrate: 2316 kb/s
       Stream #1:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s32 (24 bit), 2304 kb/s
    Output #0, mov, to 'output.mov':
     Metadata:
       major_brand     : qt  
       minor_version   : 537199360
       compatible_brands: qt  
       encoder         : Lavf58.17.106
       Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 170692 kb/s, 0.04 fps, 25 tbr, 12800 tbn, 25 tbc (default)
       Metadata:
         creation_time   : 2018-10-09T13:41:49.000000Z
         handler_name    : Apple Video Media Handler
         encoder         : Apple ProRes 422 (HQ)
         timecode        : 00:01:12:22
       Stream #0:1: Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32 (24 bit), 2304 kb/s
    Stream mapping:
     Stream #0:0 -> #0:0 (copy)
     Stream #1:0 -> #0:1 (copy)
    Press [q] to stop, [?] for help
    frame=  875 fps=479 q=-1.0 Lsize=  739138kB time=00:00:34.99 bitrate=173024.6kbits/s speed=19.2x    
    video:729276kB audio:9846kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.002153%