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29b7d3621c
- First, I redid the output interface for libobs. I feel like it's going in a pretty good direction in terms of design. Right now, the design is so that outputs and encoders are separate. One or more outputs can connect to a specific encoder to receive its data, or the output can connect directly to raw data from libobs output itself, if the output doesn't want to use a designated encoder. Data is received via callbacks set when you connect to the encoder or raw output. Multiple outputs can receive the data from a single encoder context if need be (such as for streaming to multiple channels at once, and/or recording with the same data). When an encoder is first connected to, it will connect to raw output, and start encoding. Additional connections will receive that same data being encoded as well after that. When the last encoder has disconnected, it will stop encoding. If for some reason the encoder needs to stop, it will use the callback with NULL to signal that encoding has stopped. Some of these things may be subject to change in the future, though it feels pretty good with this design so far. Will have to see how well it works out in practice versus theory. - Second, Started adding preliminary RTMP/x264 output plugin code. To speed things up, I might just make a direct raw->FFmpeg output to create a quick output plugin that we can start using for testing all the subsystems.
107 lines
3.3 KiB
C
107 lines
3.3 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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#include "obs-encoder.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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DARRAY(struct obs_output*) outputs;
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DARRAY(struct obs_encoder*) encoders;
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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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pthread_mutex_t outputs_mutex;
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pthread_mutex_t encoders_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 encoder_info) encoder_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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