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https://github.com/obsproject/obs-studio.git
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62c2b1d74e
Completely revamped the entire media i/o data and handlers. The original idea was to have a system that would have connecting media inputs and outputs, but at a certain point I realized that this was an unnecessary complexity for what we wanted to do. (Also, it reminded me of directshow filters, and I HATE directshow with a passion, and wouldn't wish it upon my greatest enemy) Now, audio/video outputs are connected to directly, with better callback handlers, and will eventually have the ability to automatically handle conversions such as 4:4:4 to 4:2:0 when connecting to an input that uses them. Doing this will allow the video/audio i/o handlers to also prevent duplicate conversion, as well as make it easier/simple to use. My true goal for this is to make output and encoder plugins as simple to create as possible. I want to be able to be able to create an output plugin with almost no real hassle of having to worry about image conversions, media inputs/outputs, etc. A plugin developer shouldn't have to handle that sort of stuff when he/she doesn't really need to. Plugins will be able to simply create a callback via obs_video() and/or obs_audio(), and they will automatically receive the audio/video data in the formats requested via a simple callback, without needing to do almost anything else at all.
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include "util/darray.h"
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#include "util/threading.h"
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#include "graphics/graphics.h"
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#include "media-io/video-io.h"
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#include "media-io/audio-io.h"
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#include "obs.h"
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#include "obs-module.h"
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#include "obs-source.h"
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#include "obs-output.h"
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#include "obs-service.h"
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#define NUM_TEXTURES 2
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struct obs_display {
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swapchain_t swap; /* can be NULL if just sound */
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obs_source_t channels[MAX_CHANNELS];
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/* TODO: sound output target */
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};
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/* ------------------------------------------------------------------------- */
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struct obs_video {
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graphics_t graphics;
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stagesurf_t copy_surfaces[NUM_TEXTURES];
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texture_t render_textures[NUM_TEXTURES];
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texture_t output_textures[NUM_TEXTURES];
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effect_t default_effect;
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bool textures_copied[NUM_TEXTURES];
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bool copy_mapped;
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int cur_texture;
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video_t video;
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pthread_t video_thread;
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bool thread_initialized;
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uint32_t base_width;
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uint32_t base_height;
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};
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struct obs_audio {
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/* TODO: audio subsystem */
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audio_t audio;
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};
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/* user sources, output channels, and displays */
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struct obs_data {
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/* arrays of pointers jim? you should really stop being lazy and use
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* linked lists. */
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DARRAY(struct obs_display*) displays;
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DARRAY(struct obs_source*) sources;
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obs_source_t channels[MAX_CHANNELS];
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pthread_mutex_t sources_mutex;
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pthread_mutex_t displays_mutex;
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};
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struct obs_subsystem {
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DARRAY(struct obs_module) modules;
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DARRAY(struct source_info) input_types;
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DARRAY(struct source_info) filter_types;
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DARRAY(struct source_info) transition_types;
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DARRAY(struct output_info) output_types;
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DARRAY(struct service_info) service_types;
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signal_handler_t signals;
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proc_handler_t procs;
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/* segmented into multiple sub-structures to keep things a bit more
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* clean and organized */
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struct obs_video video;
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struct obs_audio audio;
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struct obs_data data;
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};
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extern struct obs_subsystem *obs;
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extern void *obs_video_thread(void *param);
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