I am trying to stream HLS from a very low bitrate MPEG4 stream but only audio is being played and video is blank. I am pulling udp multicast stream via ffmpeg => transcoding it into mpeg4 => pushing it to wmspanel/nimble via udp:
ffmpeg -re -timeout 2000 -i 'udp://@18.104.22.168:8002?overrun_nonfatal=1&fifo_size=50000000' -pix_fmt yuv420p -aspect 16:9 -filter:v yadif=0:-1:1,fps=25 -c:v mpeg4 -vtag xvid -s 176:144 -b:v 74k -c:a aac -b:a 64k -ar 44100 -framerate 20 -strict -2 -max_muxing_queue_size 1024 -f mpegts 'udp://192.168.2.200:2345' </dev/null >/dev/null 2>/root/mpeg4.log &
The following is the ffmpeg output:
Input #0, mpegts, from 'udp://@22.214.171.124:8002?overrun_nonfatal=1&fifo_size=50000000':
Duration: N/A, start: 50971.689489, bitrate: N/A
service_name : #########
Stream #0:0[0x63]: Video: h264 (Main) ( / 0x001B), yuv420p(tv, bt470bg, top first), 720x576 [SAR 12:11 DAR 15:11], 25 fps, 50 tbr, 90k tbn, 50 tbc
Stream #0:1[0x64](eng): Audio: mp2 ( / 0x0004), 48000 Hz, stereo, s16p, 128 kb/s
Stream #0:2[0x65](eng): Audio: mp2 ( / 0x0004), 48000 Hz, stereo, s16p, 64 kb/s
Stream #0:0 -> #0:0 (h264 (native) -> mpeg4 (native))
Stream #0:1 -> #0:1 (mp2 (native) -> aac (native))
Press [q] to stop, [?] for help
[h264 @ 0x55e294d23460] reference picture missing during reorderbitrate= -0.0kbits/s speed=N/A
[h264 @ 0x55e294d23460] Missing reference picture, default is 65413
[h264 @ 0x55e294e00ce0] mmco: unref short failure
Last message repeated 1 times
[h264 @ 0x55e294e00ce0] number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding one
[h264 @ 0x55e294b76aa0] mmco: unref short failure
[h264 @ 0x55e294e1fa80] mmco: unref short failure
[mpeg4 @ 0x55e294c233c0] too many threads/slices (10), reducing to 9ate= -0.0kbits/s speed=N/A
Output #0, mpegts, to 'udp://192.168.2.200:2345':
encoder : Lavf57.83.100
Stream #0:0: Video: mpeg4, yuv420p, 176x144 [SAR 16:11 DAR 16:9], q=2-31, 74 kb/s, 25 fps, 90k tbn, 25 tbc
encoder : Lavc57.107.100 mpeg4
cpb: bitrate max/min/avg: 0/0/74000 buffer size: 0 vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC), 44100 Hz, stereo, fltp, 64 kb/s
encoder : Lavc57.107.100 aac
root@vm2:~# fps= 25 q=31.0 size= 3790kB time=00:02:40.12 bitrate= 193.9kbits/s speed=0.998x
I have pulled the above mpegts udp stream via wmspanel/MPEGTS In and streaming via hls through MPEGTS Out. In MPEGTS out, I can see that both VIDEO and profile audio profiles are being loaded (udp://192.168.2.200:2345 Stream 256 (MPEG-4 Video) udp://192.168.2.200:2345 Stream 257 (MPEG-2 AAC Audio)
However, when I play the HLS stream, there is no video but audio is playing.
The video is playing when I use x264 codec in ffmpeg. As listed in https://wmspanel.com/nimble/codecs MPEG4 Video is supported.
Could you please suggest?
Please remove -vtag xvid option (or use -vtag h263) since Nimble doesn't recognize this setting. Also, if you would like to play it in a browser, use H.264 encoder ( -c:v libx264) instead of mpeg4.
Thank you Denis.
I can now play the video stream on VLC player. However, webplayers (player.wmspanel.com) still do not play the video and the video on the stream's dvr is also missing. I guess its best to use H.264 encoder for best compatibility.
The audio file is not getting send through the email and I am currently using outlook and from past few days I am having an error on the outlook and I have contacted https://emailsupports.net/fix-outlook-error-0x8004010f/ to get it fixed.
TubeMate is an application that can do the job for you. Have faced the problem with Vimeo videos and have got it resolved
There are a few browser plug ins as well that are available in the web store that do the same job
and required to achieve the purposes illustrated in the
If you want to know more or withdraw your consent to all or some of the cookies, please
refer to the