Open felixyangtw opened 3 years ago
Hi @felixyangtw, yes, we can expose them through ffmpeg. Meanwhile, could you verify your needs with these interfaces by the sample app? And let us know the cli?
Hi: I often use ffmpeg to do the HDR10 encoding because the HDR information are stored in the container and SEI message. By the way, dos SVT-HEVC support smpte 2084? I think HDR10 need it. The following is the example that I use ffprobe to probe a HDR10 Video.
Program 1 Stream #0:0[0x101]: Video: hevc (Main 10) ([36][0][0][0] / 0x0024), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 59.94 tbc Stream #0:10x102: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 192 kb/s felix@Felix-NB:~/prog_wor
Hi, Below are the static settings in VUI if -hdr (HDR10) is set. https://github.com/OpenVisualCloud/SVT-HEVC/blob/master/Source/Lib/Codec/EbResourceCoordinationProcess.c#L392. I think SMPTE ST2048
is a typo which means SMPTE ST2084
.
Please verify using the sample app if encoder provides all the interfaces you need for your work, before we expose anything through ffmpeg. Thank you. Encoder parameters
Hi: Thanks. I read https://github.com/OpenVisualCloud/SVT-HEVC/blob/master/Source/Lib/Codec/EbResourceCoordinationProcess.c#L392 and compare with HEVC standard. The code" vuiPtr->transferCharacteristics = 16" is right, but the standard says it is "SMPTE ST 2084", and this is FYI. I will use sample app to test and I hope can see the updated ffmpeg_plugin for HDR10 quickly. Thanks for your help!
Sure, let us know the test result.
Hi: I would like use SVT-HEVC to encode HDR10 Video. I found only the parameter -hdr, and it seems to signal the video is HDR. However, the parameters MaxCLL, MaxFALL, UseMasterDisplay, MasterDisplay ... etc are not defined in ffmpeg_plugin. Is it possible to add them in ffmpeg_plugin?