obs-StreamFX/source/encoders/handlers/nvenc_shared.hpp
Michael Fabian 'Xaymar' Dirks 36aec3be54 encoders/ffmpeg/nvenc: Ensure compatibility with more than just FFmpeg 4.2
When FFmpeg Encoders was originally written, FFmpeg 4.2 was still new and OBS Studio did not seem to want to update to anything newer for a while. This led to code being fine-tuned for FFmpeg 4.2, which stops working the moment OBS Studio upgrades FFmpeg. This removes the dependency on FFmpeg 4.2 hopefully, and allows using newer FFmpeg versions - or perhaps even older versions.

Additionally the nonsensical behavior of the Target Quality slider was fixed. It is now from 0 to 51, instead of from 0 to 100, and as such matches FFmpeg exactly.
2023-04-05 18:58:17 +02:00

62 lines
2.5 KiB
C++

// FFMPEG Video Encoder Integration for OBS Studio
// Copyright (c) 2019 Michael Fabian Dirks <info@xaymar.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#pragma once
#include "common.hpp"
#include "handler.hpp"
extern "C" {
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4242 4244 4365)
#endif
#include <libavcodec/avcodec.h>
#ifdef _MSC_VER
#pragma warning(pop)
#endif
}
/* NVENC has multiple compression modes:
- CBR: Constant Bitrate (rc=cbr)
- VBR: Variable Bitrate (rc=vbr)
- CQP: Constant QP (rc=cqp)
- CQ: Constant Quality (rc=vbr b=0 maxrate=0 qmin=0 qmax=51 cq=qp), this is basically CRF in X264.
*/
namespace streamfx::encoder::ffmpeg::handler::nvenc {
bool is_available();
void override_update(ffmpeg_instance* instance, obs_data_t* settings);
void get_defaults(obs_data_t* settings, const AVCodec* codec, AVCodecContext* context);
void get_properties_pre(obs_properties_t* props, const AVCodec* codec, const AVCodecContext* context);
void get_properties_post(obs_properties_t* props, const AVCodec* codec, const AVCodecContext* context);
void get_runtime_properties(obs_properties_t* props, const AVCodec* codec, AVCodecContext* context);
void migrate(obs_data_t* settings, uint64_t version, const AVCodec* codec, AVCodecContext* context);
void update(obs_data_t* settings, const AVCodec* codec, AVCodecContext* context);
void log_options(obs_data_t* settings, const AVCodec* codec, AVCodecContext* context);
} // namespace streamfx::encoder::ffmpeg::handler::nvenc