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More work on fixing black video screen.

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This commit is contained in:
Relintai 2021-06-20 12:07:30 +02:00
parent 8e7b0500e8
commit b76f84c33e
3 changed files with 58 additions and 23 deletions
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4
app/impl_application.h
View File

@ -9,8 +9,8 @@
class ImplApplication : public Application {
public:
ImplApplication() : Application() {
//scene = new VLCScene();
scene = new MainScene();
scene = new VLCScene();
//scene = new MainScene();
}
~ImplApplication() {
delete scene;

73
app/vlc_scene.cpp
View File

@ -10,8 +10,8 @@
#include <stdio.h>
#include <stdlib.h>
#define VIDEOWIDTH 320
#define VIDEOHEIGHT 240
int VIDEOWIDTH = 0;
int VIDEOHEIGHT = 0;
// VLC prepares to render a video frame.
static void *lock(void *data, void **p_pixels) {
@ -33,6 +33,7 @@ static void unlock(void *data, void *id, void *const *p_pixels) {
uint16_t *pixels = (uint16_t *)*p_pixels;
// We can also render stuff.
int x, y;
for (y = 10; y < 40; y++) {
for (x = 10; x < 40; x++) {
@ -42,6 +43,8 @@ static void unlock(void *data, void *id, void *const *p_pixels) {
// RV16 = 5+6+5 pixels per color, BGR.
pixels[y * VIDEOWIDTH + x] = 0x02ff;
}
pixels[y * VIDEOWIDTH + x] = 0x02ff;
}
}
@ -49,6 +52,34 @@ static void unlock(void *data, void *id, void *const *p_pixels) {
SDL_UnlockMutex(c->mutex);
}
static unsigned int formatSetup(void **opaque, char *chroma, unsigned *w, unsigned *h, unsigned *pitches, unsigned *lines) {
if (VLCScene::scene->texture) {
return 1;
}
memcpy(chroma, "RV16", sizeof("RV16") - 1);
VIDEOWIDTH = *w;
VIDEOHEIGHT = *h;
printf("%d %d\n", VIDEOWIDTH, VIDEOHEIGHT);
*pitches = VIDEOWIDTH * 2;
*lines = VIDEOHEIGHT;
VLCScene::scene->texture = SDL_CreateTexture(
Renderer::get_singleton()->get_renderer(),
SDL_PIXELFORMAT_BGR565, SDL_TEXTUREACCESS_STREAMING,
VIDEOWIDTH, VIDEOHEIGHT);
if (!VLCScene::scene->texture) {
fprintf(stderr, "Couldn't create texture: %s\n", SDL_GetError());
return 1;
}
return 1;
}
// VLC wants to display a video frame.
static void display(void *data, void *id) {
@ -63,15 +94,15 @@ static void display(void *data, void *id) {
rect.x = (int)((1. + .5 * sin(0.03 * c->n)) * (w - VIDEOWIDTH) / 2);
rect.y = (int)((1. + .5 * cos(0.03 * c->n)) * (h - VIDEOHEIGHT) / 2);
Renderer::get_singleton()->set_draw_color(0, 80, 0, 255);
Renderer::get_singleton()->clear();
SDL_RenderCopy(Renderer::get_singleton()->get_renderer(), c->texture, NULL, &rect);
//Renderer::get_singleton()->set_draw_color(0, 80, 0, 255);
//Renderer::get_singleton()->clear();
//SDL_RenderCopy(Renderer::get_singleton()->get_renderer(), c->texture, NULL, &rect);
//Renderer::get_singleton()->present();
//SDL_SetRenderDrawColor(Renderer::get_singleton()->get_renderer(), 0, 80, 0, 255);
//SDL_RenderClear(Renderer::get_singleton()->get_renderer());
//SDL_RenderCopy(Renderer::get_singleton()->get_renderer(), c->texture, NULL, &rect);
//SDL_RenderPresent(Renderer::get_singleton()->get_renderer());
SDL_SetRenderDrawColor(Renderer::get_singleton()->get_renderer(), 0, 80, 0, 255);
SDL_RenderClear(Renderer::get_singleton()->get_renderer());
SDL_RenderCopy(Renderer::get_singleton()->get_renderer(), c->texture, NULL, &rect);
SDL_RenderPresent(Renderer::get_singleton()->get_renderer());
}
void VLCScene::event(const SDL_Event &ev) {
@ -109,26 +140,19 @@ void VLCScene::render() {
}
VLCScene::VLCScene() {
scene = this;
r = false;
done = 0;
action = 0;
pause = 0;
texture = SDL_CreateTexture(
Renderer::get_singleton()->get_renderer(),
SDL_PIXELFORMAT_BGR565, SDL_TEXTUREACCESS_STREAMING,
VIDEOWIDTH, VIDEOHEIGHT);
if (!texture) {
fprintf(stderr, "Couldn't create texture: %s\n", SDL_GetError());
return;
}
texture = nullptr;
mutex = SDL_CreateMutex();
char const *vlc_argv[] = {
//"--no-audio", // Don't play audio.
"--no-xlib", // Don't use Xlib.
//"--verbose", "3",
// Apply a video filter.
//"--video-filter", "sepia",
@ -151,16 +175,21 @@ VLCScene::VLCScene() {
return;
}
m = libvlc_media_new_path(libvlc, "./test.mp4");
m = libvlc_media_new_path(libvlc, "./test.mkv");
mp = libvlc_media_player_new_from_media(m);
libvlc_media_release(m);
//memcpy(chroma, "RV16", 4);
libvlc_video_set_format_callbacks(mp, formatSetup, NULL);
libvlc_video_set_callbacks(mp, lock, unlock, display, this);
libvlc_video_set_format(mp, "RV16", VIDEOWIDTH, VIDEOHEIGHT, VIDEOWIDTH * 2);
//libvlc_video_set_format(mp, chroma, VIDEOWIDTH, VIDEOHEIGHT, VIDEOWIDTH * 2);
}
VLCScene::~VLCScene() {
scene = nullptr;
// Stop stream and clean up libVLC.
libvlc_media_player_stop(mp);
@ -170,3 +199,5 @@ VLCScene::~VLCScene() {
// Close window and clean up libSDL.
SDL_DestroyMutex(mutex);
}
VLCScene *VLCScene::scene = nullptr;

4
app/vlc_scene.h
View File

@ -24,6 +24,10 @@ public:
libvlc_media_t *m;
libvlc_media_player_t *mp;
static VLCScene *scene;
char *chroma;
bool r;
int done;
int action;