Hello!
Ubuntu 18.04.3
ffmpeg 4.2
Driver Version: 435.21
CUDA Version: 10.1
Nvenc version 9.1
Capture Device: DeckLink Mini Recorder 4K
GPU: NVidia GeForce GTX 1660
i need stream input video to mpegts udp:
ffmpeg \
-use_wallclock_as_timestamps 1 \
-loglevel debug \
-hwaccel nvdec \
-threads 8 -thread_type frame \
-f decklink \
-video_pts wallclock \
-audio_pts wallclock \
-draw_bars true \
-raw_format yuv422p10 \
-channels 2 \
-i 'DeckLink Mini Recorder 4K' \
\
-c:v h264_nvenc \
-vsync 0 \
-preset:v slow \
-profile:v high \
-level:v 4.2 \
-rc cbr_hq \
-rc-lookahead 32 \
-surfaces 64 \
-weighted_pred 1 \
-pix_fmt yuv420p \
-b:v 4.8M \
-cq 17 \
-qmin 1 \
-qmax 18 \
-g 12 \
-refs 2 \
\
-c:a libfdk_aac \
-profile:a aac_he_v2 \
-ac 2 \
-ar 48000 \
-af 'aresample=async=1' \
\
-f mpegts 'udp://@239.0.0.1:2266?pkt_size=1316&fifo_size=1000000&buffer_size=100000000&overrun_nonfatal=1'
i get valid and successfull output:
[decklink @ 0x564090345bc0] Autodetected the input mode
[decklink @ 0x564090345bc0] Found Decklink mode 1920 x 1080 with rate 25.00(i)
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, decklink, from 'DeckLink Mini Recorder 4K':
Duration: N/A, start: 1570604250.716705, bitrate: 1107456 kb/s
Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Stream #0:1: Video: v210 (V210 / 0x30313256), yuv422p10le(top first), 1920x1080, 1105920 kb/s, 25 tbr, 1000k tbn, 1000k tbc
Stream mapping:
Stream #0:1 -> #0:0 (v210 (native) -> h264 (h264_nvenc))
Stream #0:0 -> #0:1 (pcm_s16le (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
Output #0, mpegts, to 'udp://@239.0.0.1:2266?pkt_size=1316&fifo_size=1000000&buffer_size=100000000&overrun_nonfatal=1':
Metadata:
encoder : Lavf58.32.104
Stream #0:0: Video: h264 (h264_nvenc) (High), yuv420p(top coded first (swapped)), 1920x1080, q=1-18, 4800 kb/s, 25 fps, 90k tbn, 25 tbc
Metadata:
encoder : Lavc58.56.101 h264_nvenc
Side data:
cpb: bitrate max/min/avg: 0/0/4800000 buffer size: 9600000 vbv_delay: N/A
Stream #0:1: Audio: aac (libfdk_aac) (HE-AACv2), 48000 Hz, stereo, s16, 52 kb/s
Metadata:
encoder : Lavc58.56.101 libfdk_aac
frame= 26 fps=0.0 q=0.0 size= 0kB time=00:00:00.96 bitrate= 0.0kbits/s speed=1.89x
frame= 39 fps= 38 q=0.0 size= 0kB time=00:00:01.47 bitrate= 0.0kbits/s speed=1.43x
frame= 52 fps= 34 q=0.0 size= 0kB time=00:00:01.98 bitrate= 0.0kbits/s speed=1.28x
...
but some time later (2-25 min) i get crush:
[decklink @ 0x55dc42b4ac00] Frame received (#17175) - Valid (5529600B) - QSize 0.000000MB
frame=17186 fps= 25 q=26.0 size= 419306kB time=00:11:27.39 bitrate=4997.1kbits/s speed= 1x
frame=17199 fps= 25 q=25.0 size= 419614kB time=00:11:27.90 bitrate=4997.0kbits/s speed= 1x
[decklink @ 0x55dc42b4ac00] Frame received (#17200) - Valid (5529600B) - QSize 0.000000MB
frame=17212 fps= 25 q=25.0 size= 419923kB time=00:11:28.41 bitrate=4997.0kbits/s speed= 1x
[decklink @ 0x55dc42b4ac00] Frame received (#17225) - Valid (5529600B) - QSize 0.000000MB
frame=17225 fps= 25 q=26.0 size= 420227kB time=00:11:28.92 bitrate=4996.9kbits/s speed= 1x
frame=17238 fps= 25 q=26.0 size= 420537kB time=00:11:29.43 bitrate=4996.9kbits/s speed= 1x
[decklink @ 0x55dc42b4ac00] Frame received (#17250) - Valid (5529600B) - QSize 0.000000MB
frame=17251 fps= 25 q=26.0 size= 420858kB time=00:11:29.95 bitrate=4997.0kbits/s speed= 1x
frame=17264 fps= 25 q=26.0 size= 421170kB time=00:11:30.50 bitrate=4996.7kbits/s speed= 1x
[decklink @ 0x55dc42b4ac00] Frame received (#17275) - Valid (5529600B) - QSize 0.000000MB
frame=17277 fps= 25 q=26.0 size= 421484kB time=00:11:31.01 bitrate=4996.7kbits/s speed= 1x
[decklink @ 0x55dc42b4ac00] Frame received (#17300) - Valid (5529600B) - QSize 63.378754MB
[decklink @ 0x55dc42b4ac00] Frame received (#17325) - Valid (5529600B) - QSize 195.402374MB
[decklink @ 0x55dc42b4ac00] Frame received (#17350) - Valid (5529600B) - QSize 327.425995MB
[decklink @ 0x55dc42b4ac00] Frame received (#17375) - Valid (5529600B) - QSize 459.449615MB
[decklink @ 0x55dc42b4ac00] Frame received (#17400) - Valid (5529600B) - QSize 591.473236MB
[decklink @ 0x55dc42b4ac00] Frame received (#17425) - Valid (5529600B) - QSize 723.496857MB
[decklink @ 0x55dc42b4ac00] Frame received (#17450) - Valid (5529600B) - QSize 855.520477MB
[decklink @ 0x55dc42b4ac00] Frame received (#17475) - Valid (5529600B) - QSize 987.544098MB
[decklink @ 0x55dc42b4ac00] Decklink input buffer overrun!
Last message repeated 36 times
[decklink @ 0x55dc42b4ac00] Frame received (#17500) - Valid (5529600B) - QSize 1024.503296MB
[decklink @ 0x55dc42b4ac00] Decklink input buffer overrun!
Last message repeated 49 times
[decklink @ 0x55dc42b4ac00] Frame received (#17525) - Valid (5529600B) - QSize 1024.503296MB
[decklink @ 0x55dc42b4ac00] Decklink input buffer overrun!
Last message repeated 49 times
[decklink @ 0x55dc42b4ac00] Frame received (#17550) - Valid (5529600B) - QSize 1024.503296MB
[decklink @ 0x55dc42b4ac00] Decklink input buffer overrun!
Last message repeated 49 times
if i use CPU encodind like libx264, all good, over9000 hours encode stream.
Why GPU crushes?
Perhaps the reason is out of sync equipment?