H265 streaming on OBS

OBS The official made it clear that they did not support H265, It seems that I won't support it in the future , What's the reason ？ You can see the quarrel on the official forum

h265 Support

I don't want to read English , I'd like to make a brief statement here , Because of Adobe The company's RTMP There is no support in the agreement H265, So they don't want to support H265. Of course, the voice of the masses is still very strong . So here comes the question , How to modify OBS Open source code makes it support H265 How about the format ？

Start trying ：

First github On clone Next OBS Source code , According to the official instructions , Configure the compilation environment , I won't go into that . After successful compilation , Start trying to find some code of the encoder .

find obs-ffmpeg This module , There's a file in it jim_nvenc.c

struct obs_encoder_info nvenc_info = {
	.id                      = "jim_nvenc",
	.codec                   = "h264",
	.type                    = OBS_ENCODER_VIDEO,
	.caps                    = OBS_ENCODER_CAP_PASS_TEXTURE,
	.get_name                = nvenc_get_name,
	.create                  = nvenc_create,
	.destroy                 = nvenc_destroy,
	.update                  = nvenc_update,
	.encode_texture          = nvenc_encode_tex,
	.get_defaults            = nvenc_defaults,
	.get_properties          = nvenc_properties,
	.get_extra_data          = nvenc_extra_data,
	.get_sei_data            = nvenc_sei_data,
};

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This is the code above nvenc Of h264 Coding module ,nvenc yes NVIDIA Video card coding tool launched , At the same time have h264 and h265 Coding function , It's just OBS Not used h265 It's just the part of .

So follow the code above , structure h265 Module .

struct obs_encoder_info hevc_nvenc_info = {
	.id = "hevc_nvenc",
	.codec = "hevc",
	.type = OBS_ENCODER_VIDEO,
	.caps = OBS_ENCODER_CAP_PASS_TEXTURE,
	.get_name = hevc_nvenc_get_name,
	.create = hevc_nvenc_create,
	.destroy = nvenc_destroy,
	.update = nvenc_update,
	.encode_texture = nvenc_encode_tex,
	.get_defaults = nvenc_defaults,
	.get_properties = nvenc_properties,
	.get_extra_data = nvenc_extra_data,
	.get_sei_data = nvenc_sei_data,
};

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Most functions can be reused h264 Of , except create and get_name.

create The function is also basically the same as H264 equally , Inside the handle NV_ENC_CODEC_H264_GUID Replace with NV_ENC_CODEC_HEVC_GUID, Replace it like this ,

Then go to obs_ffmpeg.c Add inside obs_register_encoder(&nvenc_encoder_info); To register .OBS You can use this encoder . Of course, it didn't succeed in the end ,nVidia The driver of reported an error , It's hard to study , So the sword goes sideways , Find clues provided by foreign friends ,OBS There is also a video recording function , You can choose FFMPEG Custom output , You can choose from URL Output , Then push the stream . At this point, you need to compile one that can h265 Push stream FFMPEG, Then put obs Compile the configuration , Compile together , You can call this customized FFMPEG, Final realization H265 Of rtmp Push flow .