Parallel MPEGTS Encoding - Muxrate Bug

[smallishzulu]

Hello,

It seems that in parallel mpegts encoding outputting to udp stream, muxrate does not apply to each defined encoding process.

./ffmpeg -loglevel verbose -re -i record.ts -aspect 16:9 -s 1920x1080 -c:v:0 libx264 -preset superfast -vb 4000k -minrate 4000k -maxrate 4000k -bufsize 4000k -r 25 -c:a:0 aac -b:a:0 128k -f mpegts -muxrate 5000k 'udp://233.33.33.1:5001?pkt_size=1316&bitrate=5000000&fifo_size=10000000' -aspect 4:3 -s 720x576 -c:v:0 mpeg2video -vb 2200k -minrate 2200k -maxrate 2200k -bufsize 2200k -r 25 -c:a:0 mp2 -b:a:0 384k -f mpegts -muxrate 3500k 'udp://233.33.33.1:5002?pkt_size=1316&bitrate=3500000&fifo_size=10000000'

Log:

[mpegts @ 0x1d30180] dts < pcr, TS is invalidkB time=00:00:01.86 bitrate= 563.8kbits/s speed=1.78x

Last message repeated 3 times

[mpegts @ 0x1d30180] dts < pcr, TS is invalidkB time=00:00:02.38 bitrate=1366.2kbits/s speed=1.53x

Last message repeated 13 times

[mpegts @ 0x1d29060] dts < pcr, TS is invalid

Last message repeated 1 times

[mpegts @ 0x1d30180] dts < pcr, TS is invalid
[mpegts @ 0x1d29060] dts < pcr, TS is invalid

Last message repeated 1 times

[mpegts @ 0x1d30180] dts < pcr, TS is invalid

Last message repeated 1 times

[mpegts @ 0x1d29060] dts < pcr, TS is invalidkB time=00:00:02.89 bitrate=1893.8kbits/s speed=1.39x
[mpegts @ 0x1d30180] dts < pcr, TS is invalid

Last message repeated 1 times

[mpegts @ 0x1d29060] dts < pcr, TS is invalid

Last message repeated 1 times

[mpegts @ 0x1d30180] dts < pcr, TS is invalid
[mpegts @ 0x1d29060] dts < pcr, TS is invalid
[mpegts @ 0x1d30180] dts < pcr, TS is invalid
[mpegts @ 0x1d29060] dts < pcr, TS is invalid

Last message repeated 1 times

[mpegts @ 0x1d30180] dts < pcr, TS is invalid

Last message repeated 1 times

[mpegts @ 0x1d29060] dts < pcr, TS is invalid

Last message repeated 1 times

[mpegts @ 0x1d30180] dts < pcr, TS is invalid
[mpegts @ 0x1d29060] dts < pcr, TS is invalid
[mpegts @ 0x1d30180] dts < pcr, TS is invalid
[mpegts @ 0x1d29060] dts < pcr, TS is invalid

Last message repeated 1 times

UDP outputs does not reach to 5000k and 3500k target mux bitrate in analysis.

If any muxrate is removed, the defined UDP output reaches to its target mux bitrate.

It seems, muxrate parameter only applies once.

[smallishzulu]

Sorry, I was testing with an very early release of ffmpeg. My mistake.