Hi Gyan, Actually most of the errors were made just because I wrote the command in the email rather than copying the command I was issuing.
Actually I was already using columns and not commas, but definitely the error was in how I was using the -latm option. I though latm was related to the previous flag option, so I didn't think to suffix :a:0 Your help was extremely clarifying, thanks a lot. I've end up doing this: /usr/src/ffmpeg-4.1.3/ffmpeg -v verbose -hwaccel cuvid -c:v h264_cuvid -i "udp://226.45.23.147:2001?fifo_size=1000000" -vf scale_npp=1280:720:format=yuv420p,hwdownload -map 0:v -map 0:a -map 0:a -r 25 -g 50 -c:v h264_nvenc -c:a libfdk_aac -flags:a:0 +global_header -latm:a:0 1 -profile:a:0 aac_he -c:a:1 libfdk_aac -f tee "[f=mpegts:mpegts_flags=latm:select=\'0,1\']udp://239.99.33.33:7000?pkt_size=1316&ttl=15|[f=mpegts:select=\'0,2\']udp://239.99.33.33:6000?pkt_size=1316&ttl=15" And actually now does exactly what I need. Thank you, really Alex -----Original Message----- From: ffmpeg-user [mailto:[email protected]] On Behalf Of Gyan Sent: 26 June 2019 12:38 To: [email protected] Subject: Re: [FFmpeg-user] TEE muxer and missing mpegts_flags On 26-06-2019 03:56 PM, Alex Molon wrote: > Hi All, > > I need to live encode a video and send it to two separate UDP outputs with > different settings, since the only difference is the audio track, I was > thinking to use the TEE muxer but I don't know how to pass a mpegts_flag > > At the moment I'm using two different processes, but I'm wasting CPU > resources: > Process 1: ffmpeg -i input -c:v libx264 -c:a libfdk_aac -flags:a > +global_header -latm 1 -profile:a aac_he -mpegts_flags latm -f mpegts > udp://239.33.33.33:7000 > Process 2: ffmpeg -i input -c:v libx264 -c:a libfdk_aac -f mpegts > udp://239.33.33.33:6000 > > So I've tried with something like this: > > ffmpeg -i input -map 0:v -map 0:a -map 0:a -c:v libx264 -c:a libfdk_aac > -flags:a:0 +global_header -latm 1 -profile:a: aac_he -f tee > "[f=mpegts:mpegts_flags=latm,select=\'0,1\']udp://239.33.33.33:7000|[f=mpegts,select=\'0,2\']udp://239.33.33.33:6000" > > but it sems the option mpegts_flags=latm is totally ignored since I can see > this error: > > [LATM/LOAS muxer @ 0x55f4f9d038c0] Muxing MPEG-4 AOT 21 in LATM is not > supported > [tee @ 0x55f4f6689600] Slave > '[f=mpegts:mpegts_flags=latm:select='0,4']udp://239.5.99.120:7000?pkt_size=1316': > error writing header: Invalid data found when processing input > > Where am I wrong? > Any suggestion? A few things are wrong. Options for a slave muxer are separated by a colon ':' so f=mpegts:mpegts_flags=latm,select=\'0,1\' becomes f=mpegts:mpegts_flags=latm:select=\'0,1\' Same for f=mpegts,select=\'0,2\' Next, -latm 1 -profile:a: aac_he applies these options to both audio encodes. Change to -latm:a:0 1 -profile:a:0 aac_he Gyan _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
