RomiTT’s gists

RomiTT / Example.cpp

Last active July 18, 2019 04:02

For thread-safe function call in native node module.


	Napi::Value FGM::test(const Napi::CallbackInfo &info) {
	Napi::Env env = info.Env();

	auto cb = info[0].As<Napi::Function>();
	threadSafeCallback = ThreadSafeFunction::Create(cb);

	std::thread t([threadSafeCallback]() => {
	// do something

RomiTT / libvlc_media_add_option 정보

Last active August 8, 2019 07:35

	libvlc_media_add_option(m, ":avcodec-hw=dxva2");


	// Below is the information about option list.


	/* Input */
	var_Create (mp, "rate", VLC_VAR_FLOAT\|VLC_VAR_DOINHERIT);
	var_Create (mp, "sout", VLC_VAR_STRING);
	var_Create (mp, "demux-filter", VLC_VAR_STRING);

RomiTT / RGB_DEFAULT.hlsl

Last active January 11, 2024 12:38

YUV to RGB HLSL Shaders - DirectX 11

	//-----------------------------------------------------------
	// YUV TO RGB BT.601 For SD TV
	//-----------------------------------------------------------

	cbuffer PS_CONSTANT_BUFFER : register(b0)
	{
	float Opacity;
	float ignoreA;
	float ignoreB;
	float ignoreC;

RomiTT / VideoTexture.cpp

Last active August 25, 2019 19:20

Creating a texture for pixel shader and updating the texture in DirectX 11.

	//------------------------------------------------
	// Creating texture for rendering video
	//------------------------------------------------

	// ID3D11Device* Device

	ID3D11Texture2D* texture = nullptr;

	D3D11_TEXTURE2D_DESC td;
	RtlZeroMemory(&td, sizeof(D3D11_TEXTURE2D_DESC));

RomiTT / pseudo_code.cpp

Last active July 29, 2023 10:42

Tip for implementing VLC custom callback with DirectX

	// VLC prepares to render a video frame.
	static void* lock(void* data, void** p_pixels) {
	return NULL; // Picture identifier, not needed here.
	}

	// VLC just rendered a video frame.
	static void unlock(void* data, void* id, void* const* p_pixels) {
	}

	// VLC wants to display a video frame.

RomiTT / picture_CopyPixels.c

Created August 12, 2019 15:45

vlc functions.

	void picture_CopyPixels( picture_t p_dst, const picture_t p_src )
	{
	for( int i = 0; i < p_src->i_planes ; i++ )
	plane_CopyPixels( p_dst->p+i, p_src->p+i );

	assert( p_dst->context == NULL );

	if( p_src->context != NULL )
	p_dst->context = p_src->context->copy( p_src->context );
	}

RomiTT / Enumerating media track using vlc.c

Created August 16, 2019 14:31


	libvlc_media_track_t** pp_tracks;
	unsigned i_count = libvlc_media_tracks_get(m, &pp_tracks);
	if (i_count > 0) {
	for (unsigned i = 0; i < i_count; ++i)
	{
	libvlc_media_track_t* p_track = pp_tracks[i];
	switch (p_track->i_type)
	{
	case libvlc_track_audio:

RomiTT / fragment_shader_NV12_to_RGB.frag

Created November 5, 2019 16:29 — forked from crearo/fragment_shader_NV12_to_RGB.frag

A fragment shader to convert NV12 to RGB.

	/** A fragment shader to convert NV12 to RGB.
	* Input textures Y - is a block of size w*h.
	* texture UV is of size w*h/2.
	* Remember, both U and V are individually of size w/2*h/2, but they are interleaved.
	* The layout looks like this :
	* ----------
	* \| \|
	* \| Y \| size = w*h
	* \| \|
	* \|________\|

RomiTT / OpenGL copy texture to texture.cpp

Last active February 12, 2020 16:41


	void copy_texture(GLuint srcTex, GLuint destTex, int width, int height) {
	GLuint fboIds[2];
	glGenFramebuffers(2, fboIds);
	glBindFramebuffer(GL_READ_FRAMEBUFFER, fboIds[0]);
	glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, srcTex, 0);

	glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fboIds[1]);
	glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, destTex, 0);

RomiTT / glfw_ship.cpp

Created March 3, 2020 17:06 — forked from ad8e/glfw_ship.cpp

instructions to use skia and glfw together. (download, installation, first program). works on Linux and Windows.

	/* Note: this Google copyright notice only applies to the original file, which has large sections copy-pasted here. my changes are under CC0 (public domain).

	* Copyright 2015 Google Inc.
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/

	/*
	The official instructions don't work well. These alternative instructions are intended to be the shortest path to get a minimal setup running.