Closed Holly0521 closed 4 years ago
These bitrates seem on the high side. What is frame size of the copy-cut.mp4 video?
Hi @Holly0521, I tried with a mp4(1280x720, -preset 9) with your first command, it works well.
To avoid uploading the large mp4 file, we can try with our file first, please run ffprobe copy-cut.mp4
and copy the output here. Thank you.
Hi @tianjunwork, these are messages after running ffrpobe copy-cut.mp4. Thx a lot. Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'copy-cut.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2mp41 encoder : Lavf58.20.100 Duration: 00:02:10.05, start: 0.000000, bitrate: 50031 kb/s Stream #0:0(und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67), 3840x2160 [SAR 1:1 DAR 16:9], 49771 kb/s, 50 fps, 50 tbr, 90k tbn, 50 tbc (default) Metadata: handler_name : VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s (default) Metadata: handler_name : SoundHandler
Thanks @Holly0521 , I tried with a ffmpeg generated test file with the same spec, but still failed to reproduce process hang. Could you upload the file? dropbox, onedrive or google drive is preferable. Thank you.
Hi @tianjunwork, thanks for your reply. I have uploaded the source video through onedrive. And the link is https://1drv.ms/v/s!Ake4PSC3nB0Jav70ZjwE5ZoS7uM?e=dUCCWW. Thx a lot.
Hi @Holly0521 , the file is downloaded. Thanks for the effort uploading it. I got seg fault running your first command. No issue with the second. We will look into it. Thank you reporting the issue.
Hi @tianjunwork , no thanks. Yes, the second and three commonds are normally executed.
Hi @Holly0521 ,
We confirmed that PR #457 can address this issue, and please try in your side. Thanks!
ffmpeg would randomly get NULL data (header_ptr->pBuffer) dequeued from the output bit stream FIFO of SVT-HEVC encoder, because it's posted by libSvtEncoderSendErrorExit with error code EB_ENC_EC_ERROR2 (0x701), due to that the output bit stream buffers are too small (when the specified bit rate > buffer size).
Thanks @tianjunwork , the problems above has now been sorted. But the process is suspended when running this commond of ./ffmpeg -stream_loop -1 -i input.ts -c:v libw265 -preset 11 -profile:v 2 -level:v 62 -tier high -sc_detection 0 -g 100 -pix_fmt yuv420p10le -b:v 30000k -rc 1 -r 50 -s 3840x2160 -c:a aac -f mpegts 4K-HLG.ts -c:v libw265 -preset 9 -profile:v 1 -level:v 62 -tier main -pix_fmt yuv420p -b:v 1000k -rc 1 -s 1280x720 -c:a aac -f mpegts 720P-SDR.ts And process execution time is not fixed when the process is suspended. I'm looking forward to your reply.
CPU Informations Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 64 On-line CPU(s) list: 0-63 Thread(s) per core: 2 Core(s) per socket: 16 Socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family: 6 Model: 85 Model name: Intel(R) Xeon(R) Gold 6266C CPU @ 3.00GHz Stepping: 7 CPU MHz: 3000.000 BogoMIPS: 6000.00 Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 1024K L3 cache: 30976K NUMA node0 CPU(s): 0-31 NUMA node1 CPU(s): 32-63 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ssbd ibrs ibpb stibp ibrs_enhanced fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 arat avx512_vnni md_clear spec_ctrl intel_stibp flush_l1d arch_capabilities Operating systems CentOS Linux release 7.5.1804 Engine libsvt_hevc (master, commits on Feb 8, 2020) + ffmpeg 4.2
The process is suspended or core dump when running this commond of _ffmpeg -i copy-cut.mp4 -c:v libsvt_hevc -preset 11 -profile:v 2 -level:v 51 -b:v 36000000 -rc 1 -maxrate 45000000 -bufsize 36000000 -tier high -g 100 -sc_detection 0 -hdr 1 -pixfmt yuv420p10le -an ./10015.ts If the parameter of maxrate equals the parameter of bufsize or it does not set the two parameters, the process normally executing. And the corresponding commands are as follows. _ffmpeg -i copy-cut.mp4 -c:v libsvt_hevc -preset 11 -profile:v 2 -level:v 51 -b:v 36000000 -rc 1 -maxrate 36000000 -bufsize 36000000 -tier high -g 100 -sc_detection 0 -hdr 1 -pixfmt yuv420p10le -an ./10015.ts _ffmpeg -i copy-cut.mp4 -c:v libsvt_hevc -preset 11 -profile:v 2 -level:v 51 -b:v 36000000 -rc 1 -bufsize 36000000 -tier high -g 100 -sc_detection 0 -hdr 1 -pixfmt yuv420p10le -an ./10015.ts
If the input video is needed, I can upload to a website. Thanks for your reply.