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separate Renderer.cpp into multiple files

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tomoron
2025-02-20 16:15:42 +01:00
parent faba01d912
commit 5eee13a4e2
8 changed files with 989 additions and 927 deletions
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252
srcs/class/Renderer/ffmpeg.cpp Normal file
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@ -0,0 +1,252 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ffmpeg.cpp :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/02/20 15:59:41 by tomoron #+# #+# */
/* Updated: 2025/02/20 16:06:39 by tomoron ### ########.fr */
/* */
/* ************************************************************************** */
#include "RT.hpp"
void shaderDenoise(ShaderProgram &denoising_program, GPUDenoise &denoise, std::vector<GLuint> textures);
void Renderer::initRender(void)
{
if(_path.size() < 2)
throw std::runtime_error("render path doesn't have enough path points");
if(_path[0].time != 0)
throw std::runtime_error("render path does not start at 0, aborting");
if(_path[_path.size() - 1].time - _path[0].time <= 0)
throw std::runtime_error("render path is 0 seconds long, aborting");
_codecOptions = 0;
_destPathIndex = _path.size() - 1;
_curPathIndex = 0;
_frameCount = 0;
_curSamples = 0;
_curSplitStart = 0;
_testMode = 0;
_renderStartTime = glfwGetTime();
_scene->getCamera()->setPosition(_path[0].pos);
_scene->getCamera()->setDirection(_path[0].dir.x, _path[0].dir.y);
_win->setFrameCount(_headless ? 0 : -1);
avformat_alloc_output_context2(&_format, nullptr, nullptr, _outputFilename.c_str());
_codec_context = avcodec_alloc_context3(_codecList[_codecIndex]);
_codec_context->width = WIDTH;
_codec_context->height = HEIGHT;
_codec_context->time_base = {1, _fps};
_codec_context->framerate = {_fps, 1};
_codec_context->pix_fmt = AV_PIX_FMT_YUV420P;
_codec_context->gop_size = 10;
_codec_context->max_b_frames = 1;
if(_codecList[_codecIndex]->id == AV_CODEC_ID_H264 || _codecList[_codecIndex]->id == AV_CODEC_ID_HEVC)
av_dict_set(&_codecOptions, "crf", "0", 0);
if (_format->oformat->flags & AVFMT_GLOBALHEADER)
_codec_context->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
if (avcodec_open2(_codec_context, _codecList[_codecIndex], &_codecOptions) < 0)
{
endRender();
throw std::runtime_error("Failed to open codec");
}
_stream = avformat_new_stream(_format, _codecList[_codecIndex]);
if (!_stream)
{
endRender();
throw std::runtime_error("Failed to create stream");
}
_stream->time_base = _codec_context->time_base;
avcodec_parameters_from_context(_stream->codecpar, _codec_context);
if (!(_format->flags & AVFMT_NOFILE))
{
if (avio_open(&_format->pb, _outputFilename.c_str(), AVIO_FLAG_WRITE) < 0)
{
endRender();
throw std::runtime_error("couldn't open " + _outputFilename);
}
}
(void)avformat_write_header(_format, nullptr);
_rgb_frame = av_frame_alloc();
_rgb_frame->format = AV_PIX_FMT_RGB24;
_rgb_frame->width = WIDTH;
_rgb_frame->height = HEIGHT;
av_image_alloc(_rgb_frame->data, _rgb_frame->linesize, WIDTH, HEIGHT, AV_PIX_FMT_RGB24, 32);
_yuv_frame = av_frame_alloc();
_yuv_frame->format = _codec_context->pix_fmt;
_yuv_frame->width = WIDTH;
_yuv_frame->height = HEIGHT;
av_image_alloc(_yuv_frame->data, _yuv_frame->linesize, WIDTH, HEIGHT, _codec_context->pix_fmt, 32);
_sws_context = sws_getContext(
WIDTH, HEIGHT, AV_PIX_FMT_RGB24,
WIDTH, HEIGHT, AV_PIX_FMT_YUV420P,
SWS_BILINEAR, nullptr, nullptr, nullptr);
}
void Renderer::addImageToRender(std::vector<GLuint> &textures, ShaderProgram &denoisingProgram)
{
std::vector<float> image(WIDTH * HEIGHT * 4);
AVPacket *pkt;
long int videoFrameOffset;
long int outputImageOffset;
if(_scene->getDenoise().enabled)
shaderDenoise(denoisingProgram, _scene->getDenoise(), textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_FLOAT, image.data());
glBindTexture(GL_TEXTURE_2D, 0);
for (int x = 0; x < WIDTH; x++)
{
for(int y = 0; y < HEIGHT; y++)
{
videoFrameOffset = (y * _rgb_frame->linesize[0]) + (x * 3);
outputImageOffset = (((HEIGHT - 1) - y) * (WIDTH * 4)) + (x * 4);
glm::vec3 colors(image[outputImageOffset], image[outputImageOffset + 1], image[outputImageOffset + 2]);
// if(colors.x > 1 || colors.y > 1 || colors.z > 1)
// colors = glm::normalize(colors);
colors.x = fmin(colors.x, 1);
colors.y = fmin(colors.y, 1);
colors.z = fmin(colors.z, 1);
_rgb_frame->data[0][videoFrameOffset] = colors.x * 255;
_rgb_frame->data[0][videoFrameOffset + 1] = colors.y * 255;
_rgb_frame->data[0][videoFrameOffset + 2] = colors.z * 255;
}
}
sws_scale(_sws_context, _rgb_frame->data, _rgb_frame->linesize, 0, HEIGHT, _yuv_frame->data, _yuv_frame->linesize);
_yuv_frame->pts = _frameCount;
if (avcodec_send_frame(_codec_context, _yuv_frame) == 0) {
pkt = av_packet_alloc();
while (avcodec_receive_packet(_codec_context, pkt) == 0) {
pkt->stream_index = _stream->index;
pkt->pts = av_rescale_q(pkt->pts, _codec_context->time_base, _stream->time_base);
pkt->dts = av_rescale_q(pkt->dts, _codec_context->time_base, _stream->time_base);
av_interleaved_write_frame(_format, pkt);
av_packet_unref(pkt);
}
av_packet_free(&pkt);
}
}
void Renderer::endRender(void)
{
AVPacket *pkt;
if(_codec_context)
{
avcodec_send_frame(_codec_context, 0);
pkt = av_packet_alloc();
while (avcodec_receive_packet(_codec_context, pkt) == 0) {
pkt->stream_index = _stream->index;
pkt->pts = av_rescale_q(pkt->pts, _codec_context->time_base, _stream->time_base);
pkt->dts = av_rescale_q(pkt->dts, _codec_context->time_base, _stream->time_base);
av_interleaved_write_frame(_format, pkt);
av_packet_unref(pkt);
}
}
av_packet_free(&pkt);
if(_format)
av_write_trailer(_format);
if(_rgb_frame)
av_frame_free(&_rgb_frame);
if(_yuv_frame)
av_frame_free(&_yuv_frame);
if(_codec_context)
avcodec_free_context(&_codec_context);
if(_format)
avio_close(_format->pb);
if(_format)
avformat_free_context(_format);
if(_codecOptions)
av_dict_free(&_codecOptions);
_format = 0;
_rgb_frame = 0;
_yuv_frame = 0;
_codec_context = 0;
_destPathIndex = 0;
if(_headless)
_shouldClose = 1;
}
/* modes :
* 0 : adds only supported codecs are showed
* 1 : adds all codecs
* 2 : adds only codec <id>
*/
void Renderer::updateAvailableCodecs(int mode, AVCodecID id)
{
const AVCodec *codec;
AVCodecContext *ctx;
const AVOutputFormat *muxer;
const char *format;
std::vector<AVCodecID> goodCodecList;
fillGoodCodecList(goodCodecList);
_codecList.clear();
_codecListStr.clear();
_codecIndex = 0;
av_log_set_level(AV_LOG_QUIET);
format = _outputFilename.c_str();
if(_outputFilename.find(".") != std::string::npos)
format += _outputFilename.find(".") + 1;
muxer = av_guess_format(format, 0, 0);
for(std::vector<AVCodecID>::iterator it = goodCodecList.begin(); it != goodCodecList.end(); it++)
{
codec = avcodec_find_encoder(*it);
if(!codec)
continue;
if (mode == 1 || (mode == 2 && codec->id == id))
{
_codecList.push_back(codec);
continue;
}
ctx = avcodec_alloc_context3(codec);
if(ctx)
{
if (avformat_query_codec(muxer, codec->id, FF_COMPLIANCE_STRICT) > 0)
{
ctx->width = WIDTH;
ctx->height = HEIGHT;
ctx->time_base = {1, _fps};
ctx->framerate = {_fps, 1};
ctx->pix_fmt = AV_PIX_FMT_YUV420P;
ctx->gop_size = 10;
ctx->max_b_frames = 1;
if (avcodec_open2(ctx, codec, NULL) == 0)
_codecList.push_back(codec);
}
avcodec_free_context(&ctx);
}
}
for(auto it = _codecList.begin(); it != _codecList.end(); it++)
{
_codecListStr.push_back((*it)->name);
}
}
void Renderer::fillGoodCodecList(std::vector<AVCodecID> &lst)
{
lst.push_back(AV_CODEC_ID_FFV1);
lst.push_back(AV_CODEC_ID_H264);
lst.push_back(AV_CODEC_ID_HUFFYUV);
lst.push_back(AV_CODEC_ID_UTVIDEO);
lst.push_back(AV_CODEC_ID_PRORES);
lst.push_back(AV_CODEC_ID_V210);
}