2202 lines
58 KiB
Plaintext
2202 lines
58 KiB
Plaintext
#import <AVFoundation/AVFoundation.h>
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#import <CoreFoundation/CoreFoundation.h>
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#import <CoreMedia/CoreMedia.h>
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#import <CoreVideo/CoreVideo.h>
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#import <CoreMediaIO/CMIOHardware.h>
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#include <obs-module.h>
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#include <obs.hpp>
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#include <media-io/video-io.h>
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#include <util/dstr.hpp>
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#include <algorithm>
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#include <initializer_list>
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#include <cinttypes>
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#include <limits>
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#include <memory>
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#include <vector>
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#include "left-right.hpp"
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#include "scope-guard.hpp"
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#define NBSP "\xC2\xA0"
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using namespace std;
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namespace std {
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template<> struct default_delete<obs_data_t> {
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void operator()(obs_data_t *data) { obs_data_release(data); }
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};
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template<> struct default_delete<obs_data_item_t> {
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void operator()(obs_data_item_t *item) { obs_data_item_release(&item); }
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};
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}
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#define TEXT_AVCAPTURE obs_module_text("AVCapture")
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#define TEXT_DEVICE obs_module_text("Device")
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#define TEXT_USE_PRESET obs_module_text("UsePreset")
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#define TEXT_PRESET obs_module_text("Preset")
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#define TEXT_RESOLUTION obs_module_text("Resolution")
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#define TEXT_FRAME_RATE obs_module_text("FrameRate")
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#define TEXT_MATCH_OBS obs_module_text("MatchOBS")
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#define TEXT_INPUT_FORMAT obs_module_text("InputFormat")
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#define TEXT_COLOR_SPACE obs_module_text("ColorSpace")
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#define TEXT_VIDEO_RANGE obs_module_text("VideoRange")
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#define TEXT_RANGE_PARTIAL obs_module_text("VideoRange.Partial")
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#define TEXT_RANGE_FULL obs_module_text("VideoRange.Full")
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#define TEXT_AUTO obs_module_text("Auto")
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#define TEXT_COLOR_UNKNOWN_NAME "Unknown"
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#define TEXT_RANGE_UNKNOWN_NAME "Unknown"
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static const FourCharCode INPUT_FORMAT_AUTO = -1;
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static const int COLOR_SPACE_AUTO = -1;
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static const int VIDEO_RANGE_AUTO = -1;
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#define MILLI_TIMESCALE 1000
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#define MICRO_TIMESCALE (MILLI_TIMESCALE * 1000)
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#define NANO_TIMESCALE (MICRO_TIMESCALE * 1000)
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#define AV_FOURCC_STR(code) \
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(char[5]) \
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{ \
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static_cast<char>((code >> 24) & 0xFF), \
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static_cast<char>((code >> 16) & 0xFF), \
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static_cast<char>((code >> 8) & 0xFF), \
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static_cast<char>(code & 0xFF), 0 \
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}
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struct av_capture;
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#define AVLOG(level, format, ...) \
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blog(level, "%s: " format, obs_source_get_name(capture->source), \
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##__VA_ARGS__)
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@interface OBSAVCaptureDelegate
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: NSObject <AVCaptureVideoDataOutputSampleBufferDelegate> {
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@public
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struct av_capture *capture;
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}
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- (void)captureOutput:(AVCaptureOutput *)out
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didDropSampleBuffer:(CMSampleBufferRef)sampleBuffer
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fromConnection:(AVCaptureConnection *)connection;
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- (void)captureOutput:(AVCaptureOutput *)captureOutput
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didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
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fromConnection:(AVCaptureConnection *)connection;
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@end
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namespace {
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static auto remove_observer = [](id observer) {
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[[NSNotificationCenter defaultCenter] removeObserver:observer];
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};
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struct observer_handle
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: unique_ptr<remove_pointer<id>::type, decltype(remove_observer)> {
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using base =
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unique_ptr<remove_pointer<id>::type, decltype(remove_observer)>;
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explicit observer_handle(id observer = nullptr)
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: base(observer, remove_observer)
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{
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}
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};
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struct av_video_info {
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video_colorspace colorspace;
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video_range_type video_range;
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bool video_params_valid = false;
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};
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}
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struct av_capture {
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OBSAVCaptureDelegate *delegate;
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dispatch_queue_t queue;
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bool has_clock;
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bool device_locked;
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left_right::left_right<av_video_info> video_info;
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AVCaptureVideoDataOutput *out;
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AVCaptureDevice *device;
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AVCaptureDeviceInput *device_input;
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AVCaptureSession *session;
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NSString *uid;
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observer_handle connect_observer;
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observer_handle disconnect_observer;
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FourCharCode fourcc;
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video_format video_format;
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bool use_preset = false;
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int requested_colorspace = COLOR_SPACE_AUTO;
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int requested_video_range = VIDEO_RANGE_AUTO;
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obs_source_t *source;
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obs_source_frame frame;
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};
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static NSString *get_string(obs_data_t *data, char const *name)
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{
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return @(obs_data_get_string(data, name));
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}
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static AVCaptureDevice *get_device(obs_data_t *settings)
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{
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auto uid = get_string(settings, "device");
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return [AVCaptureDevice deviceWithUniqueID:uid];
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}
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template<typename T, typename U>
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static void clamp(T &store, U val, T low = numeric_limits<T>::min(),
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T high = numeric_limits<T>::max())
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{
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store = static_cast<intmax_t>(val) < static_cast<intmax_t>(low)
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? low
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: (static_cast<intmax_t>(val) >
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static_cast<intmax_t>(high)
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? high
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: static_cast<T>(val));
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}
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static bool get_resolution(obs_data_t *settings, CMVideoDimensions &dims)
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{
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using item_ptr = unique_ptr<obs_data_item_t>;
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item_ptr item{obs_data_item_byname(settings, "resolution")};
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if (!item)
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return false;
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auto res_str = obs_data_item_get_string(item.get());
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unique_ptr<obs_data_t> res{obs_data_create_from_json(res_str)};
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if (!res)
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return false;
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item_ptr width{obs_data_item_byname(res.get(), "width")};
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item_ptr height{obs_data_item_byname(res.get(), "height")};
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if (!width || !height)
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return false;
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clamp(dims.width, obs_data_item_get_int(width.get()), 0);
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clamp(dims.height, obs_data_item_get_int(height.get()), 0);
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if (!dims.width || !dims.height)
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return false;
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return true;
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}
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static bool get_input_format(obs_data_t *settings, FourCharCode &fourcc)
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{
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auto item = unique_ptr<obs_data_item_t>{
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obs_data_item_byname(settings, "input_format")};
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if (!item)
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return false;
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fourcc = obs_data_item_get_int(item.get());
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return true;
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}
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namespace {
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struct config_helper {
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obs_data_t *settings = nullptr;
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AVCaptureDevice *dev_ = nullptr;
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bool dims_valid : 1;
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bool fr_valid : 1;
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bool fps_valid : 1;
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bool if_valid : 1;
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CMVideoDimensions dims_{};
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const char *frame_rate_ = nullptr;
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media_frames_per_second fps_{};
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FourCharCode input_format_ = INPUT_FORMAT_AUTO;
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explicit config_helper(obs_data_t *settings) : settings(settings)
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{
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dev_ = get_device(settings);
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dims_valid = get_resolution(settings, dims_);
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fr_valid = obs_data_get_frames_per_second(
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settings, "frame_rate", nullptr, &frame_rate_);
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fps_valid = obs_data_get_frames_per_second(
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settings, "frame_rate", &fps_, nullptr);
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if_valid = get_input_format(settings, input_format_);
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}
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AVCaptureDevice *dev() const { return dev_; }
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const CMVideoDimensions *dims() const
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{
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return dims_valid ? &dims_ : nullptr;
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}
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const char *frame_rate() const
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{
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return fr_valid ? frame_rate_ : nullptr;
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}
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const media_frames_per_second *fps() const
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{
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return fps_valid ? &fps_ : nullptr;
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}
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const FourCharCode *input_format() const
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{
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return if_valid ? &input_format_ : nullptr;
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}
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};
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struct av_capture_ref {
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av_capture *capture = nullptr;
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OBSSource source;
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av_capture_ref() = default;
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av_capture_ref(av_capture *capture_, obs_weak_source_t *weak_source)
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: source(OBSGetStrongRef(weak_source))
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{
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if (!source)
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return;
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capture = capture_;
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}
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operator av_capture *() { return capture; }
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av_capture *operator->() { return capture; }
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};
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struct properties_param {
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av_capture *capture = nullptr;
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OBSWeakSource weak_source;
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properties_param(av_capture *capture) : capture(capture)
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{
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if (!capture)
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return;
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weak_source = OBSGetWeakRef(capture->source);
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}
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av_capture_ref get_ref() { return {capture, weak_source}; }
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};
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}
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static av_capture_ref get_ref(obs_properties_t *props)
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{
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void *param = obs_properties_get_param(props);
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if (!param)
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return {};
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return static_cast<properties_param *>(param)->get_ref();
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}
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static inline video_format format_from_subtype(FourCharCode subtype)
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{
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//TODO: uncomment VIDEO_FORMAT_NV12 and VIDEO_FORMAT_ARGB once libobs
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// gains matching GPU conversions or a CPU fallback is implemented
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switch (subtype) {
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case kCVPixelFormatType_422YpCbCr8:
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return VIDEO_FORMAT_UYVY;
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case kCVPixelFormatType_422YpCbCr8_yuvs:
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return VIDEO_FORMAT_YUY2;
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/*case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange:
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case kCVPixelFormatType_420YpCbCr8BiPlanarFullRange:
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return VIDEO_FORMAT_NV12;*/
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/*case kCVPixelFormatType_32ARGB:
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return VIDEO_FORMAT_ARGB;*/
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case kCVPixelFormatType_32BGRA:
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return VIDEO_FORMAT_BGRA;
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default:
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return VIDEO_FORMAT_NONE;
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}
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}
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static const char *fourcc_subtype_name(FourCharCode fourcc);
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static const char *
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format_description_subtype_name(CMFormatDescriptionRef desc,
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FourCharCode *fourcc_ = nullptr)
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{
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FourCharCode fourcc = CMFormatDescriptionGetMediaSubType(desc);
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if (fourcc_)
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*fourcc_ = fourcc;
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return fourcc_subtype_name(fourcc);
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}
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static const char *fourcc_subtype_name(FourCharCode fourcc)
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{
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switch (fourcc) {
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case kCVPixelFormatType_422YpCbCr8:
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return "UYVY - 422YpCbCr8"; //VIDEO_FORMAT_UYVY;
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case kCVPixelFormatType_422YpCbCr8_yuvs:
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return "YUY2 - 422YpCbCr8_yuvs"; //VIDEO_FORMAT_YUY2;
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case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange:
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case kCVPixelFormatType_420YpCbCr8BiPlanarFullRange:
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return "NV12 - 420YpCbCr8BiPlanar"; //VIDEO_FORMAT_NV12;
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case kCVPixelFormatType_32ARGB:
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return "ARGB - 32ARGB"; //VIDEO_FORMAT_ARGB;*/
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case kCVPixelFormatType_32BGRA:
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return "BGRA - 32BGRA"; //VIDEO_FORMAT_BGRA;
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case kCMVideoCodecType_Animation:
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return "Apple Animation";
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case kCMVideoCodecType_Cinepak:
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return "Cinepak";
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case kCMVideoCodecType_JPEG:
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return "JPEG";
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case kCMVideoCodecType_JPEG_OpenDML:
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return "MJPEG - JPEG OpenDML";
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case kCMVideoCodecType_SorensonVideo:
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return "Sorenson Video";
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case kCMVideoCodecType_SorensonVideo3:
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return "Sorenson Video 3";
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case kCMVideoCodecType_H263:
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return "H.263";
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case kCMVideoCodecType_H264:
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return "H.264";
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case kCMVideoCodecType_MPEG4Video:
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return "MPEG-4";
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case kCMVideoCodecType_MPEG2Video:
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return "MPEG-2";
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case kCMVideoCodecType_MPEG1Video:
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return "MPEG-1";
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case kCMVideoCodecType_DVCNTSC:
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return "DV NTSC";
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case kCMVideoCodecType_DVCPAL:
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return "DV PAL";
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case kCMVideoCodecType_DVCProPAL:
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return "Panasonic DVCPro PAL";
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case kCMVideoCodecType_DVCPro50NTSC:
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return "Panasonic DVCPro-50 NTSC";
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case kCMVideoCodecType_DVCPro50PAL:
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return "Panasonic DVCPro-50 PAL";
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case kCMVideoCodecType_DVCPROHD720p60:
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return "Panasonic DVCPro-HD 720p60";
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case kCMVideoCodecType_DVCPROHD720p50:
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return "Panasonic DVCPro-HD 720p50";
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case kCMVideoCodecType_DVCPROHD1080i60:
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return "Panasonic DVCPro-HD 1080i60";
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case kCMVideoCodecType_DVCPROHD1080i50:
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return "Panasonic DVCPro-HD 1080i50";
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case kCMVideoCodecType_DVCPROHD1080p30:
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return "Panasonic DVCPro-HD 1080p30";
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case kCMVideoCodecType_DVCPROHD1080p25:
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return "Panasonic DVCPro-HD 1080p25";
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case kCMVideoCodecType_AppleProRes4444:
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return "Apple ProRes 4444";
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case kCMVideoCodecType_AppleProRes422HQ:
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return "Apple ProRes 422 HQ";
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case kCMVideoCodecType_AppleProRes422:
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return "Apple ProRes 422";
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case kCMVideoCodecType_AppleProRes422LT:
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return "Apple ProRes 422 LT";
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case kCMVideoCodecType_AppleProRes422Proxy:
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return "Apple ProRes 422 Proxy";
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default:
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blog(LOG_INFO, "Unknown format %s", AV_FOURCC_STR(fourcc));
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return "unknown";
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}
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}
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static inline bool is_fullrange_yuv(FourCharCode pixel_format)
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{
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switch (pixel_format) {
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case kCVPixelFormatType_420YpCbCr8PlanarFullRange:
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case kCVPixelFormatType_420YpCbCr8BiPlanarFullRange:
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case kCVPixelFormatType_422YpCbCr8FullRange:
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return true;
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default:
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return false;
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}
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}
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static inline video_colorspace get_colorspace(CMFormatDescriptionRef desc)
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{
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CFPropertyListRef matrix = CMFormatDescriptionGetExtension(
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desc, kCMFormatDescriptionExtension_YCbCrMatrix);
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if (!matrix)
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return VIDEO_CS_DEFAULT;
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if (CFStringCompare(static_cast<CFStringRef>(matrix),
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kCVImageBufferYCbCrMatrix_ITU_R_709_2,
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0) == kCFCompareEqualTo)
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return VIDEO_CS_709;
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return VIDEO_CS_601;
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}
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static inline bool update_colorspace(av_capture *capture,
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obs_source_frame *frame,
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CMFormatDescriptionRef desc,
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bool full_range, av_video_info &vi)
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{
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auto cs_auto = capture->use_preset ||
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capture->requested_colorspace == COLOR_SPACE_AUTO;
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auto vr_auto = capture->use_preset ||
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capture->requested_video_range == VIDEO_RANGE_AUTO;
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video_colorspace colorspace = get_colorspace(desc);
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video_range_type range = full_range ? VIDEO_RANGE_FULL
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: VIDEO_RANGE_PARTIAL;
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bool cs_matches = false;
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if (cs_auto) {
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cs_matches = colorspace == vi.colorspace;
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} else {
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colorspace = static_cast<video_colorspace>(
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capture->requested_colorspace);
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cs_matches = colorspace == vi.colorspace;
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}
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bool vr_matches = false;
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if (vr_auto) {
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vr_matches = range == vi.video_range;
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} else {
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range = static_cast<video_range_type>(
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capture->requested_video_range);
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vr_matches = range == vi.video_range;
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full_range = range == VIDEO_RANGE_FULL;
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}
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if (cs_matches && vr_matches) {
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if (!vi.video_params_valid)
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capture->video_info.update([&](av_video_info &vi_) {
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vi_.video_params_valid = vi.video_params_valid =
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true;
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});
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return true;
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}
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frame->full_range = full_range;
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if (!video_format_get_parameters(colorspace, range, frame->color_matrix,
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frame->color_range_min,
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frame->color_range_max)) {
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AVLOG(LOG_ERROR,
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"Failed to get colorspace parameters for "
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"colorspace %u range %u",
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colorspace, range);
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if (vi.video_params_valid)
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capture->video_info.update([&](av_video_info &vi_) {
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vi_.video_params_valid = vi.video_params_valid =
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false;
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});
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return false;
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}
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capture->video_info.update([&](av_video_info &vi_) {
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vi_.colorspace = colorspace;
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vi_.video_range = range;
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vi_.video_params_valid = vi.video_params_valid = true;
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});
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return true;
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}
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static inline bool update_frame(av_capture *capture, obs_source_frame *frame,
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CMSampleBufferRef sample_buffer)
|
|
{
|
|
CMFormatDescriptionRef desc =
|
|
CMSampleBufferGetFormatDescription(sample_buffer);
|
|
|
|
FourCharCode fourcc = CMFormatDescriptionGetMediaSubType(desc);
|
|
video_format format = format_from_subtype(fourcc);
|
|
CMVideoDimensions dims = CMVideoFormatDescriptionGetDimensions(desc);
|
|
|
|
CVImageBufferRef img = CMSampleBufferGetImageBuffer(sample_buffer);
|
|
|
|
auto vi = capture->video_info.read();
|
|
|
|
bool video_params_were_valid = vi.video_params_valid;
|
|
SCOPE_EXIT
|
|
{
|
|
if (video_params_were_valid != vi.video_params_valid)
|
|
obs_source_update_properties(capture->source);
|
|
};
|
|
|
|
if (format == VIDEO_FORMAT_NONE) {
|
|
if (capture->fourcc == fourcc)
|
|
return false;
|
|
|
|
capture->fourcc = fourcc;
|
|
AVLOG(LOG_ERROR, "Unhandled fourcc: %s (0x%x) (%zu planes)",
|
|
AV_FOURCC_STR(fourcc), fourcc,
|
|
CVPixelBufferGetPlaneCount(img));
|
|
return false;
|
|
}
|
|
|
|
if (frame->format != format)
|
|
AVLOG(LOG_DEBUG,
|
|
"Switching fourcc: "
|
|
"'%s' (0x%x) -> '%s' (0x%x)",
|
|
AV_FOURCC_STR(capture->fourcc), capture->fourcc,
|
|
AV_FOURCC_STR(fourcc), fourcc);
|
|
|
|
bool was_yuv = format_is_yuv(frame->format);
|
|
|
|
capture->fourcc = fourcc;
|
|
frame->format = format;
|
|
frame->width = dims.width;
|
|
frame->height = dims.height;
|
|
|
|
if (format_is_yuv(format) &&
|
|
!update_colorspace(capture, frame, desc, is_fullrange_yuv(fourcc),
|
|
vi)) {
|
|
return false;
|
|
} else if (was_yuv == format_is_yuv(format)) {
|
|
capture->video_info.update([&](av_video_info &vi_) {
|
|
vi_.video_params_valid = vi.video_params_valid = true;
|
|
});
|
|
}
|
|
|
|
CVPixelBufferLockBaseAddress(img, kCVPixelBufferLock_ReadOnly);
|
|
|
|
if (!CVPixelBufferIsPlanar(img)) {
|
|
frame->linesize[0] = CVPixelBufferGetBytesPerRow(img);
|
|
frame->data[0] = static_cast<uint8_t *>(
|
|
CVPixelBufferGetBaseAddress(img));
|
|
return true;
|
|
}
|
|
|
|
size_t count = CVPixelBufferGetPlaneCount(img);
|
|
for (size_t i = 0; i < count; i++) {
|
|
frame->linesize[i] = CVPixelBufferGetBytesPerRowOfPlane(img, i);
|
|
frame->data[i] = static_cast<uint8_t *>(
|
|
CVPixelBufferGetBaseAddressOfPlane(img, i));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
@implementation OBSAVCaptureDelegate
|
|
- (void)captureOutput:(AVCaptureOutput *)out
|
|
didDropSampleBuffer:(CMSampleBufferRef)sampleBuffer
|
|
fromConnection:(AVCaptureConnection *)connection
|
|
{
|
|
UNUSED_PARAMETER(out);
|
|
UNUSED_PARAMETER(sampleBuffer);
|
|
UNUSED_PARAMETER(connection);
|
|
}
|
|
|
|
- (void)captureOutput:(AVCaptureOutput *)captureOutput
|
|
didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
|
|
fromConnection:(AVCaptureConnection *)connection
|
|
{
|
|
UNUSED_PARAMETER(captureOutput);
|
|
UNUSED_PARAMETER(connection);
|
|
|
|
CMItemCount count = CMSampleBufferGetNumSamples(sampleBuffer);
|
|
if (count < 1 || !capture)
|
|
return;
|
|
|
|
obs_source_frame *frame = &capture->frame;
|
|
|
|
CMTime target_pts =
|
|
CMSampleBufferGetOutputPresentationTimeStamp(sampleBuffer);
|
|
CMTime target_pts_nano = CMTimeConvertScale(
|
|
target_pts, NANO_TIMESCALE, kCMTimeRoundingMethod_Default);
|
|
frame->timestamp = target_pts_nano.value;
|
|
|
|
if (!update_frame(capture, frame, sampleBuffer)) {
|
|
obs_source_output_video(capture->source, nullptr);
|
|
return;
|
|
}
|
|
|
|
obs_source_output_video(capture->source, frame);
|
|
|
|
CVImageBufferRef img = CMSampleBufferGetImageBuffer(sampleBuffer);
|
|
CVPixelBufferUnlockBaseAddress(img, kCVPixelBufferLock_ReadOnly);
|
|
}
|
|
@end
|
|
|
|
static void av_capture_enable_buffering(av_capture *capture, bool enabled)
|
|
{
|
|
obs_source_set_async_unbuffered(capture->source, !enabled);
|
|
}
|
|
|
|
static const char *av_capture_getname(void *)
|
|
{
|
|
return TEXT_AVCAPTURE;
|
|
}
|
|
|
|
static void unlock_device(av_capture *capture, AVCaptureDevice *dev = nullptr)
|
|
{
|
|
if (!dev)
|
|
dev = capture->device;
|
|
|
|
if (dev && capture->device_locked)
|
|
[dev unlockForConfiguration];
|
|
|
|
capture->device_locked = false;
|
|
}
|
|
|
|
static void start_capture(av_capture *capture)
|
|
{
|
|
if (capture->session && !capture->session.running)
|
|
[capture->session startRunning];
|
|
}
|
|
|
|
static void clear_capture(av_capture *capture)
|
|
{
|
|
if (capture->session && capture->session.running)
|
|
[capture->session stopRunning];
|
|
|
|
obs_source_output_video(capture->source, nullptr);
|
|
}
|
|
|
|
static void remove_device(av_capture *capture)
|
|
{
|
|
clear_capture(capture);
|
|
|
|
[capture->session removeInput:capture->device_input];
|
|
|
|
unlock_device(capture);
|
|
|
|
capture->device_input = nullptr;
|
|
capture->device = nullptr;
|
|
}
|
|
|
|
static void av_capture_destroy(void *data)
|
|
{
|
|
auto capture = static_cast<av_capture *>(data);
|
|
|
|
delete capture;
|
|
}
|
|
|
|
static bool init_session(av_capture *capture)
|
|
{
|
|
auto session = [[AVCaptureSession alloc] init];
|
|
if (!session) {
|
|
AVLOG(LOG_ERROR, "Could not create AVCaptureSession");
|
|
return false;
|
|
}
|
|
|
|
auto delegate = [[OBSAVCaptureDelegate alloc] init];
|
|
if (!delegate) {
|
|
AVLOG(LOG_ERROR, "Could not create OBSAVCaptureDelegate");
|
|
return false;
|
|
}
|
|
|
|
delegate->capture = capture;
|
|
|
|
auto out = [[AVCaptureVideoDataOutput alloc] init];
|
|
if (!out) {
|
|
AVLOG(LOG_ERROR, "Could not create AVCaptureVideoDataOutput");
|
|
return false;
|
|
}
|
|
|
|
auto queue = dispatch_queue_create(NULL, NULL);
|
|
if (!queue) {
|
|
AVLOG(LOG_ERROR, "Could not create dispatch queue");
|
|
return false;
|
|
}
|
|
|
|
capture->session = session;
|
|
capture->delegate = delegate;
|
|
capture->out = out;
|
|
capture->queue = queue;
|
|
|
|
[capture->session addOutput:capture->out];
|
|
[capture->out setSampleBufferDelegate:capture->delegate
|
|
queue:capture->queue];
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool init_format(av_capture *capture, AVCaptureDevice *dev);
|
|
|
|
static bool init_device_input(av_capture *capture, AVCaptureDevice *dev)
|
|
{
|
|
NSError *err = nil;
|
|
AVCaptureDeviceInput *device_input =
|
|
[AVCaptureDeviceInput deviceInputWithDevice:dev error:&err];
|
|
if (!device_input) {
|
|
AVLOG(LOG_ERROR, "Error while initializing device input: %s",
|
|
err.localizedFailureReason.UTF8String);
|
|
return false;
|
|
}
|
|
|
|
[capture->session addInput:device_input];
|
|
|
|
if (!init_format(capture, dev)) {
|
|
[capture->session removeInput:device_input];
|
|
return false;
|
|
}
|
|
|
|
capture->device_input = device_input;
|
|
|
|
return true;
|
|
}
|
|
|
|
static uint32_t uint_from_dict(NSDictionary *dict, CFStringRef key)
|
|
{
|
|
return ((NSNumber *)dict[(__bridge NSString *)key]).unsignedIntValue;
|
|
}
|
|
|
|
static bool init_format(av_capture *capture, AVCaptureDevice *dev)
|
|
{
|
|
AVCaptureDeviceFormat *format = dev.activeFormat;
|
|
|
|
CMMediaType mtype =
|
|
CMFormatDescriptionGetMediaType(format.formatDescription);
|
|
// TODO: support other media types
|
|
if (mtype != kCMMediaType_Video && mtype != kCMMediaType_Muxed) {
|
|
AVLOG(LOG_ERROR, "CMMediaType '%s' is unsupported",
|
|
AV_FOURCC_STR(mtype));
|
|
return false;
|
|
}
|
|
|
|
capture->out.videoSettings = nil;
|
|
FourCharCode subtype = uint_from_dict(capture->out.videoSettings,
|
|
kCVPixelBufferPixelFormatTypeKey);
|
|
if (format_from_subtype(subtype) != VIDEO_FORMAT_NONE) {
|
|
AVLOG(LOG_DEBUG, "Using native fourcc '%s'",
|
|
AV_FOURCC_STR(subtype));
|
|
return true;
|
|
}
|
|
|
|
AVLOG(LOG_DEBUG, "Using fallback fourcc '%s' ('%s' 0x%08x unsupported)",
|
|
AV_FOURCC_STR(kCVPixelFormatType_32BGRA), AV_FOURCC_STR(subtype),
|
|
subtype);
|
|
|
|
capture->out.videoSettings = @{
|
|
(__bridge NSString *)
|
|
kCVPixelBufferPixelFormatTypeKey: @(kCVPixelFormatType_32BGRA)
|
|
};
|
|
return true;
|
|
}
|
|
|
|
static NSArray *presets(void);
|
|
static NSString *preset_names(NSString *preset);
|
|
|
|
static NSString *select_preset(AVCaptureDevice *dev, NSString *cur_preset)
|
|
{
|
|
NSString *new_preset = nil;
|
|
bool found_previous_preset = false;
|
|
for (NSString *preset in presets().reverseObjectEnumerator) {
|
|
if (!found_previous_preset)
|
|
found_previous_preset =
|
|
[cur_preset isEqualToString:preset];
|
|
|
|
if (![dev supportsAVCaptureSessionPreset:preset])
|
|
continue;
|
|
|
|
if (!new_preset || !found_previous_preset)
|
|
new_preset = preset;
|
|
}
|
|
|
|
return new_preset;
|
|
}
|
|
|
|
static bool init_preset(av_capture *capture, AVCaptureDevice *dev,
|
|
obs_data_t *settings)
|
|
{
|
|
clear_capture(capture);
|
|
|
|
unlock_device(capture, dev);
|
|
|
|
NSString *preset = get_string(settings, "preset");
|
|
if (![dev supportsAVCaptureSessionPreset:preset]) {
|
|
AVLOG(LOG_WARNING, "Preset %s not available",
|
|
preset_names(preset).UTF8String);
|
|
preset = select_preset(dev, preset);
|
|
}
|
|
|
|
if (!preset) {
|
|
AVLOG(LOG_WARNING, "Could not select a preset, "
|
|
"initialization failed");
|
|
return false;
|
|
}
|
|
|
|
capture->session.sessionPreset = preset;
|
|
AVLOG(LOG_INFO, "Using preset %s", preset_names(preset).UTF8String);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool operator==(const CMVideoDimensions &a, const CMVideoDimensions &b);
|
|
static CMVideoDimensions get_dimensions(AVCaptureDeviceFormat *format);
|
|
|
|
static AVCaptureDeviceFormat *find_format(AVCaptureDevice *dev,
|
|
CMVideoDimensions dims)
|
|
{
|
|
for (AVCaptureDeviceFormat *format in dev.formats) {
|
|
if (get_dimensions(format) == dims)
|
|
return format;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
static CMTime convert(media_frames_per_second fps)
|
|
{
|
|
CMTime time{};
|
|
time.value = fps.denominator;
|
|
time.timescale = fps.numerator;
|
|
time.flags = 1;
|
|
return time;
|
|
}
|
|
|
|
static bool lock_device(av_capture *capture, AVCaptureDevice *dev)
|
|
{
|
|
if (!dev)
|
|
dev = capture->device;
|
|
|
|
NSError *err;
|
|
if (![dev lockForConfiguration:&err]) {
|
|
AVLOG(LOG_WARNING,
|
|
"Could not lock device for configuration: "
|
|
"%s",
|
|
err.localizedDescription.UTF8String);
|
|
return false;
|
|
}
|
|
|
|
capture->device_locked = true;
|
|
return true;
|
|
}
|
|
|
|
template<typename Func>
|
|
static void find_formats(media_frames_per_second fps, AVCaptureDevice *dev,
|
|
const CMVideoDimensions *dims, Func &&f)
|
|
{
|
|
auto time = convert(fps);
|
|
|
|
for (AVCaptureDeviceFormat *format in dev.formats) {
|
|
if (!(get_dimensions(format) == *dims))
|
|
continue;
|
|
|
|
for (AVFrameRateRange *range in format
|
|
.videoSupportedFrameRateRanges) {
|
|
if (CMTimeCompare(range.maxFrameDuration, time) >= 0 &&
|
|
CMTimeCompare(range.minFrameDuration, time) <= 0)
|
|
if (f(format))
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool color_space_valid(int color_space)
|
|
{
|
|
switch (color_space) {
|
|
case COLOR_SPACE_AUTO:
|
|
case VIDEO_CS_DEFAULT:
|
|
case VIDEO_CS_601:
|
|
case VIDEO_CS_709:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static const char *color_space_name(int color_space)
|
|
{
|
|
switch (color_space) {
|
|
case COLOR_SPACE_AUTO:
|
|
return "Auto";
|
|
case VIDEO_CS_DEFAULT:
|
|
return "Default";
|
|
case VIDEO_CS_601:
|
|
return "CS 601";
|
|
case VIDEO_CS_709:
|
|
return "CS 709";
|
|
}
|
|
|
|
return "Unknown";
|
|
}
|
|
|
|
static bool video_range_valid(int video_range)
|
|
{
|
|
switch (video_range) {
|
|
case VIDEO_RANGE_AUTO:
|
|
case VIDEO_RANGE_DEFAULT:
|
|
case VIDEO_RANGE_PARTIAL:
|
|
case VIDEO_RANGE_FULL:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static const char *video_range_name(int video_range)
|
|
{
|
|
switch (video_range) {
|
|
case VIDEO_RANGE_AUTO:
|
|
return "Auto";
|
|
case VIDEO_RANGE_DEFAULT:
|
|
return "Default";
|
|
case VIDEO_RANGE_PARTIAL:
|
|
return "Partial";
|
|
case VIDEO_RANGE_FULL:
|
|
return "Full";
|
|
}
|
|
|
|
return "Unknown";
|
|
}
|
|
|
|
static bool init_manual(av_capture *capture, AVCaptureDevice *dev,
|
|
obs_data_t *settings)
|
|
{
|
|
clear_capture(capture);
|
|
|
|
auto input_format = obs_data_get_int(settings, "input_format");
|
|
FourCharCode actual_format = input_format;
|
|
|
|
SCOPE_EXIT
|
|
{
|
|
bool refresh = false;
|
|
if (input_format != actual_format) {
|
|
refresh = obs_data_get_autoselect_int(settings,
|
|
"input_format") !=
|
|
actual_format;
|
|
obs_data_set_autoselect_int(settings, "input_format",
|
|
actual_format);
|
|
} else {
|
|
refresh = obs_data_has_autoselect_value(settings,
|
|
"input_format");
|
|
obs_data_unset_autoselect_value(settings,
|
|
"input_format");
|
|
}
|
|
|
|
if (refresh)
|
|
obs_source_update_properties(capture->source);
|
|
};
|
|
|
|
capture->requested_colorspace =
|
|
obs_data_get_int(settings, "color_space");
|
|
if (!color_space_valid(capture->requested_colorspace)) {
|
|
AVLOG(LOG_WARNING, "Unsupported color space: %d",
|
|
capture->requested_colorspace);
|
|
return false;
|
|
}
|
|
|
|
capture->requested_video_range =
|
|
obs_data_get_int(settings, "video_range");
|
|
if (!video_range_valid(capture->requested_video_range)) {
|
|
AVLOG(LOG_WARNING, "Unsupported color range: %d",
|
|
capture->requested_video_range);
|
|
return false;
|
|
}
|
|
|
|
CMVideoDimensions dims{};
|
|
if (!get_resolution(settings, dims)) {
|
|
AVLOG(LOG_WARNING, "Could not load resolution");
|
|
return false;
|
|
}
|
|
|
|
media_frames_per_second fps{};
|
|
if (!obs_data_get_frames_per_second(settings, "frame_rate", &fps,
|
|
nullptr)) {
|
|
AVLOG(LOG_WARNING, "Could not load frame rate");
|
|
return false;
|
|
}
|
|
|
|
AVCaptureDeviceFormat *format = nullptr;
|
|
find_formats(fps, dev, &dims, [&](AVCaptureDeviceFormat *format_) {
|
|
auto desc = format_.formatDescription;
|
|
auto fourcc = CMFormatDescriptionGetMediaSubType(desc);
|
|
if (input_format != INPUT_FORMAT_AUTO && fourcc != input_format)
|
|
return false;
|
|
|
|
actual_format = fourcc;
|
|
format = format_;
|
|
return true;
|
|
});
|
|
|
|
if (!format) {
|
|
AVLOG(LOG_WARNING,
|
|
"Frame rate is not supported: %g FPS "
|
|
"(%u/%u)",
|
|
media_frames_per_second_to_fps(fps), fps.numerator,
|
|
fps.denominator);
|
|
return false;
|
|
}
|
|
|
|
if (!lock_device(capture, dev))
|
|
return false;
|
|
|
|
const char *if_name = input_format == INPUT_FORMAT_AUTO
|
|
? "Auto"
|
|
: fourcc_subtype_name(input_format);
|
|
|
|
#define IF_AUTO(x) (input_format != INPUT_FORMAT_AUTO ? "" : x)
|
|
AVLOG(LOG_INFO,
|
|
"Capturing '%s' (%s):\n"
|
|
" Resolution: %ux%u\n"
|
|
" FPS: %g (%" PRIu32 "/%" PRIu32 ")\n"
|
|
" Frame interval: %g" NBSP "s\n"
|
|
" Input format: %s%s%s (%s)%s\n"
|
|
" Requested color space: %s (%d)\n"
|
|
" Requested video range: %s (%d)\n"
|
|
" Using format: %s",
|
|
dev.localizedName.UTF8String, dev.uniqueID.UTF8String, dims.width,
|
|
dims.height, media_frames_per_second_to_fps(fps), fps.numerator,
|
|
fps.denominator, media_frames_per_second_to_frame_interval(fps),
|
|
if_name, IF_AUTO(" (actual: "),
|
|
IF_AUTO(fourcc_subtype_name(actual_format)),
|
|
AV_FOURCC_STR(actual_format), IF_AUTO(")"),
|
|
color_space_name(capture->requested_colorspace),
|
|
capture->requested_colorspace,
|
|
video_range_name(capture->requested_video_range),
|
|
capture->requested_video_range, format.description.UTF8String);
|
|
#undef IF_AUTO
|
|
|
|
dev.activeFormat = format;
|
|
dev.activeVideoMinFrameDuration = convert(fps);
|
|
dev.activeVideoMaxFrameDuration = convert(fps);
|
|
|
|
capture->video_info.update(
|
|
[&](av_video_info &vi) { vi.video_params_valid = false; });
|
|
|
|
return true;
|
|
}
|
|
|
|
static void capture_device(av_capture *capture, AVCaptureDevice *dev,
|
|
obs_data_t *settings)
|
|
{
|
|
const char *name = dev.localizedName.UTF8String;
|
|
obs_data_set_string(settings, "device_name", name);
|
|
obs_data_set_string(settings, "device", dev.uniqueID.UTF8String);
|
|
AVLOG(LOG_INFO, "Selected device '%s'", name);
|
|
|
|
if ((capture->use_preset = obs_data_get_bool(settings, "use_preset"))) {
|
|
if (!init_preset(capture, dev, settings))
|
|
return;
|
|
|
|
} else {
|
|
if (!init_manual(capture, dev, settings))
|
|
return;
|
|
}
|
|
|
|
if (!init_device_input(capture, dev))
|
|
return;
|
|
|
|
AVCaptureInputPort *port = capture->device_input.ports[0];
|
|
capture->has_clock = [port respondsToSelector:@selector(clock)];
|
|
|
|
capture->device = dev;
|
|
start_capture(capture);
|
|
return;
|
|
}
|
|
|
|
static inline void handle_disconnect_capture(av_capture *capture,
|
|
AVCaptureDevice *dev)
|
|
{
|
|
if (![dev.uniqueID isEqualTo:capture->uid])
|
|
return;
|
|
|
|
if (!capture->device) {
|
|
AVLOG(LOG_INFO, "Received disconnect for inactive device '%s'",
|
|
capture->uid.UTF8String);
|
|
return;
|
|
}
|
|
|
|
AVLOG(LOG_WARNING, "Device with unique ID '%s' disconnected",
|
|
dev.uniqueID.UTF8String);
|
|
|
|
remove_device(capture);
|
|
}
|
|
|
|
static inline void handle_disconnect(av_capture *capture, AVCaptureDevice *dev)
|
|
{
|
|
if (!dev)
|
|
return;
|
|
|
|
handle_disconnect_capture(capture, dev);
|
|
obs_source_update_properties(capture->source);
|
|
}
|
|
|
|
static inline void handle_connect_capture(av_capture *capture,
|
|
AVCaptureDevice *dev,
|
|
obs_data_t *settings)
|
|
{
|
|
if (![dev.uniqueID isEqualTo:capture->uid])
|
|
return;
|
|
|
|
if (capture->device) {
|
|
AVLOG(LOG_ERROR, "Received connect for in-use device '%s'",
|
|
capture->uid.UTF8String);
|
|
return;
|
|
}
|
|
|
|
AVLOG(LOG_INFO,
|
|
"Device with unique ID '%s' connected, "
|
|
"resuming capture",
|
|
dev.uniqueID.UTF8String);
|
|
|
|
capture_device(capture, dev, settings);
|
|
}
|
|
|
|
static inline void handle_connect(av_capture *capture, AVCaptureDevice *dev,
|
|
obs_data_t *settings)
|
|
{
|
|
if (!dev)
|
|
return;
|
|
|
|
handle_connect_capture(capture, dev, settings);
|
|
obs_source_update_properties(capture->source);
|
|
}
|
|
|
|
static bool av_capture_init(av_capture *capture, obs_data_t *settings)
|
|
{
|
|
if (!init_session(capture))
|
|
return false;
|
|
|
|
capture->uid = get_string(settings, "device");
|
|
|
|
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
|
|
capture->disconnect_observer.reset([nc
|
|
addObserverForName:AVCaptureDeviceWasDisconnectedNotification
|
|
object:nil
|
|
queue:[NSOperationQueue mainQueue]
|
|
usingBlock:^(NSNotification *note) {
|
|
handle_disconnect(capture, note.object);
|
|
}]);
|
|
|
|
capture->connect_observer.reset([nc
|
|
addObserverForName:AVCaptureDeviceWasConnectedNotification
|
|
object:nil
|
|
queue:[NSOperationQueue mainQueue]
|
|
usingBlock:^(NSNotification *note) {
|
|
handle_connect(capture, note.object, settings);
|
|
}]);
|
|
|
|
AVCaptureDevice *dev =
|
|
[AVCaptureDevice deviceWithUniqueID:capture->uid];
|
|
|
|
if (!dev) {
|
|
if (capture->uid.length < 1)
|
|
AVLOG(LOG_INFO, "No device selected");
|
|
else
|
|
AVLOG(LOG_WARNING,
|
|
"Could not initialize device "
|
|
"with unique ID '%s'",
|
|
capture->uid.UTF8String);
|
|
return true;
|
|
}
|
|
|
|
capture_device(capture, dev, settings);
|
|
|
|
return true;
|
|
}
|
|
|
|
static void *av_capture_create(obs_data_t *settings, obs_source_t *source)
|
|
{
|
|
unique_ptr<av_capture> capture;
|
|
|
|
try {
|
|
capture.reset(new av_capture());
|
|
} catch (...) {
|
|
return capture.release();
|
|
}
|
|
|
|
capture->source = source;
|
|
|
|
if (!av_capture_init(capture.get(), settings)) {
|
|
AVLOG(LOG_ERROR, "av_capture_init failed");
|
|
return nullptr;
|
|
}
|
|
|
|
av_capture_enable_buffering(capture.get(),
|
|
obs_data_get_bool(settings, "buffering"));
|
|
|
|
return capture.release();
|
|
}
|
|
|
|
static NSArray *presets(void)
|
|
{
|
|
return @[
|
|
//AVCaptureSessionPresetiFrame1280x720,
|
|
//AVCaptureSessionPresetiFrame960x540,
|
|
AVCaptureSessionPreset1280x720, AVCaptureSessionPreset960x540,
|
|
AVCaptureSessionPreset640x480, AVCaptureSessionPreset352x288,
|
|
AVCaptureSessionPreset320x240, AVCaptureSessionPresetHigh,
|
|
//AVCaptureSessionPresetMedium,
|
|
//AVCaptureSessionPresetLow,
|
|
//AVCaptureSessionPresetPhoto,
|
|
];
|
|
}
|
|
|
|
static NSString *preset_names(NSString *preset)
|
|
{
|
|
NSDictionary *preset_names = @{
|
|
AVCaptureSessionPresetLow: @"Low",
|
|
AVCaptureSessionPresetMedium: @"Medium",
|
|
AVCaptureSessionPresetHigh: @"High",
|
|
AVCaptureSessionPreset320x240: @"320x240",
|
|
AVCaptureSessionPreset352x288: @"352x288",
|
|
AVCaptureSessionPreset640x480: @"640x480",
|
|
AVCaptureSessionPreset960x540: @"960x540",
|
|
AVCaptureSessionPreset1280x720: @"1280x720",
|
|
AVCaptureSessionPresetHigh: @"High",
|
|
};
|
|
NSString *name = preset_names[preset];
|
|
if (name)
|
|
return name;
|
|
return [NSString stringWithFormat:@"Unknown (%@)", preset];
|
|
}
|
|
|
|
static void av_capture_defaults(obs_data_t *settings)
|
|
{
|
|
obs_data_set_default_string(settings, "uid", "");
|
|
obs_data_set_default_bool(settings, "use_preset", true);
|
|
|
|
obs_data_set_default_string(settings, "preset",
|
|
AVCaptureSessionPreset1280x720.UTF8String);
|
|
|
|
obs_data_set_default_int(settings, "input_format", INPUT_FORMAT_AUTO);
|
|
obs_data_set_default_int(settings, "color_space", COLOR_SPACE_AUTO);
|
|
obs_data_set_default_int(settings, "video_range", VIDEO_RANGE_AUTO);
|
|
}
|
|
|
|
static bool update_device_list(obs_property_t *list, NSString *uid,
|
|
NSString *name, bool disconnected)
|
|
{
|
|
bool dev_found = false;
|
|
bool list_modified = false;
|
|
|
|
size_t size = obs_property_list_item_count(list);
|
|
for (size_t i = 0; i < size;) {
|
|
const char *uid_ = obs_property_list_item_string(list, i);
|
|
bool found = [uid isEqualToString:@(uid_ ? uid_ : "")];
|
|
bool disabled = obs_property_list_item_disabled(list, i);
|
|
if (!found && !disabled) {
|
|
i += 1;
|
|
continue;
|
|
}
|
|
|
|
if (disabled && !found) {
|
|
list_modified = true;
|
|
obs_property_list_item_remove(list, i);
|
|
continue;
|
|
}
|
|
|
|
if (disabled != disconnected)
|
|
list_modified = true;
|
|
|
|
dev_found = true;
|
|
obs_property_list_item_disable(list, i, disconnected);
|
|
i += 1;
|
|
}
|
|
|
|
if (dev_found)
|
|
return list_modified;
|
|
|
|
size_t idx = obs_property_list_add_string(list, name.UTF8String,
|
|
uid.UTF8String);
|
|
obs_property_list_item_disable(list, idx, disconnected);
|
|
|
|
return true;
|
|
}
|
|
|
|
static void fill_presets(AVCaptureDevice *dev, obs_property_t *list,
|
|
NSString *current_preset)
|
|
{
|
|
obs_property_list_clear(list);
|
|
|
|
bool preset_found = false;
|
|
for (NSString *preset in presets()) {
|
|
bool is_current = [preset isEqualToString:current_preset];
|
|
bool supported = dev &&
|
|
[dev supportsAVCaptureSessionPreset:preset];
|
|
|
|
if (is_current)
|
|
preset_found = true;
|
|
|
|
if (!supported && !is_current)
|
|
continue;
|
|
|
|
size_t idx = obs_property_list_add_string(
|
|
list, preset_names(preset).UTF8String,
|
|
preset.UTF8String);
|
|
obs_property_list_item_disable(list, idx, !supported);
|
|
}
|
|
|
|
if (preset_found)
|
|
return;
|
|
|
|
size_t idx = obs_property_list_add_string(
|
|
list, preset_names(current_preset).UTF8String,
|
|
current_preset.UTF8String);
|
|
obs_property_list_item_disable(list, idx, true);
|
|
}
|
|
|
|
static bool check_preset(AVCaptureDevice *dev, obs_property_t *list,
|
|
obs_data_t *settings)
|
|
{
|
|
NSString *current_preset = get_string(settings, "preset");
|
|
|
|
size_t size = obs_property_list_item_count(list);
|
|
NSMutableSet *listed = [NSMutableSet setWithCapacity:size];
|
|
|
|
for (size_t i = 0; i < size; i++)
|
|
[listed addObject:@(obs_property_list_item_string(list, i))];
|
|
|
|
bool presets_changed = false;
|
|
for (NSString *preset in presets()) {
|
|
bool is_listed = [listed member:preset] != nil;
|
|
bool supported = dev &&
|
|
[dev supportsAVCaptureSessionPreset:preset];
|
|
|
|
if (supported == is_listed)
|
|
continue;
|
|
|
|
presets_changed = true;
|
|
}
|
|
|
|
if (!presets_changed && [listed member:current_preset] != nil)
|
|
return false;
|
|
|
|
fill_presets(dev, list, current_preset);
|
|
return true;
|
|
}
|
|
|
|
static bool autoselect_preset(AVCaptureDevice *dev, obs_data_t *settings)
|
|
{
|
|
NSString *preset = get_string(settings, "preset");
|
|
if (!dev || [dev supportsAVCaptureSessionPreset:preset]) {
|
|
if (obs_data_has_autoselect_value(settings, "preset")) {
|
|
obs_data_unset_autoselect_value(settings, "preset");
|
|
return true;
|
|
}
|
|
|
|
} else {
|
|
preset = select_preset(dev, preset);
|
|
const char *autoselect =
|
|
obs_data_get_autoselect_string(settings, "preset");
|
|
if (![preset isEqualToString:@(autoselect)]) {
|
|
obs_data_set_autoselect_string(settings, "preset",
|
|
preset.UTF8String);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static CMVideoDimensions get_dimensions(AVCaptureDeviceFormat *format)
|
|
{
|
|
auto desc = format.formatDescription;
|
|
return CMVideoFormatDescriptionGetDimensions(desc);
|
|
}
|
|
|
|
using resolutions_t = vector<CMVideoDimensions>;
|
|
|
|
static resolutions_t enumerate_resolutions(AVCaptureDevice *dev)
|
|
{
|
|
resolutions_t res;
|
|
|
|
if (!dev)
|
|
return res;
|
|
|
|
res.reserve(dev.formats.count + 1);
|
|
|
|
for (AVCaptureDeviceFormat *format in dev.formats) {
|
|
auto dims = get_dimensions(format);
|
|
|
|
if (find(begin(res), end(res), dims) == end(res))
|
|
res.push_back(dims);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static void sort_resolutions(vector<CMVideoDimensions> &resolutions)
|
|
{
|
|
auto cmp = [](const CMVideoDimensions &a, const CMVideoDimensions &b) {
|
|
return a.width * a.height > b.width * b.height;
|
|
};
|
|
|
|
sort(begin(resolutions), end(resolutions), cmp);
|
|
}
|
|
|
|
static void data_set_resolution(obs_data_t *data, const CMVideoDimensions &dims)
|
|
{
|
|
obs_data_set_int(data, "width", dims.width);
|
|
obs_data_set_int(data, "height", dims.height);
|
|
}
|
|
|
|
static void data_set_resolution(const unique_ptr<obs_data_t> &data,
|
|
const CMVideoDimensions &dims)
|
|
{
|
|
data_set_resolution(data.get(), dims);
|
|
}
|
|
|
|
static bool add_resolution_to_list(vector<CMVideoDimensions> &res,
|
|
const CMVideoDimensions &dims)
|
|
{
|
|
if (find(begin(res), end(res), dims) != end(res))
|
|
return false;
|
|
|
|
res.push_back(dims);
|
|
return true;
|
|
}
|
|
|
|
static const char *obs_data_get_json(const unique_ptr<obs_data_t> &data)
|
|
{
|
|
return obs_data_get_json(data.get());
|
|
}
|
|
|
|
static bool operator==(const CMVideoDimensions &a, const CMVideoDimensions &b)
|
|
{
|
|
return a.width == b.width && a.height == b.height;
|
|
}
|
|
|
|
static bool resolution_property_needs_update(obs_property_t *p,
|
|
const resolutions_t &resolutions)
|
|
{
|
|
vector<bool> res_found(resolutions.size());
|
|
|
|
auto num = obs_property_list_item_count(p);
|
|
for (size_t i = 1; i < num; i++) { // skip empty entry
|
|
const char *json = obs_property_list_item_string(p, i);
|
|
unique_ptr<obs_data_t> buffer{obs_data_create_from_json(json)};
|
|
|
|
CMVideoDimensions dims{};
|
|
if (!get_resolution(buffer.get(), dims))
|
|
return true;
|
|
|
|
auto pos = find(begin(resolutions), end(resolutions), dims);
|
|
if (pos == end(resolutions))
|
|
return true;
|
|
|
|
res_found[pos - begin(resolutions)] = true;
|
|
}
|
|
|
|
return any_of(begin(res_found), end(res_found),
|
|
[](bool b) { return !b; });
|
|
}
|
|
|
|
static bool update_resolution_property(obs_properties_t *props,
|
|
const config_helper &conf,
|
|
obs_property_t *p = nullptr)
|
|
{
|
|
if (!p)
|
|
p = obs_properties_get(props, "resolution");
|
|
|
|
if (!p)
|
|
return false;
|
|
|
|
auto valid_dims = conf.dims();
|
|
auto resolutions = enumerate_resolutions(conf.dev());
|
|
|
|
bool unsupported = true;
|
|
if (valid_dims)
|
|
unsupported = add_resolution_to_list(resolutions, *valid_dims);
|
|
|
|
bool was_enabled = obs_property_enabled(p);
|
|
obs_property_set_enabled(p, !!conf.dev());
|
|
|
|
if (!resolution_property_needs_update(p, resolutions))
|
|
return was_enabled != obs_property_enabled(p);
|
|
|
|
sort_resolutions(resolutions);
|
|
|
|
obs_property_list_clear(p);
|
|
obs_property_list_add_string(p, "", "{}");
|
|
|
|
DStr name;
|
|
unique_ptr<obs_data_t> buffer{obs_data_create()};
|
|
for (const CMVideoDimensions &dims : resolutions) {
|
|
data_set_resolution(buffer, dims);
|
|
auto json = obs_data_get_json(buffer);
|
|
dstr_printf(name, "%dx%d", dims.width, dims.height);
|
|
size_t idx = obs_property_list_add_string(p, name->array, json);
|
|
|
|
if (unsupported && valid_dims && dims == *valid_dims)
|
|
obs_property_list_item_disable(p, idx, true);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static media_frames_per_second convert(CMTime time_)
|
|
{
|
|
media_frames_per_second res{};
|
|
clamp(res.numerator, time_.timescale);
|
|
clamp(res.denominator, time_.value);
|
|
return res;
|
|
}
|
|
|
|
using frame_rates_t =
|
|
vector<pair<media_frames_per_second, media_frames_per_second>>;
|
|
static frame_rates_t
|
|
enumerate_frame_rates(AVCaptureDevice *dev,
|
|
const CMVideoDimensions *dims = nullptr)
|
|
{
|
|
frame_rates_t res;
|
|
|
|
if (!dev || !dims)
|
|
return res;
|
|
|
|
auto add_unique_frame_rate_range = [&](AVFrameRateRange *range) {
|
|
auto min = convert(range.maxFrameDuration);
|
|
auto max = convert(range.minFrameDuration);
|
|
|
|
auto pair = make_pair(min, max);
|
|
|
|
if (find(begin(res), end(res), pair) != end(res))
|
|
return;
|
|
|
|
res.push_back(pair);
|
|
};
|
|
|
|
for (AVCaptureDeviceFormat *format in dev.formats) {
|
|
if (!(get_dimensions(format) == *dims))
|
|
continue;
|
|
|
|
for (AVFrameRateRange *range in format
|
|
.videoSupportedFrameRateRanges) {
|
|
add_unique_frame_rate_range(range);
|
|
|
|
if (CMTimeCompare(range.minFrameDuration,
|
|
range.maxFrameDuration) != 0) {
|
|
blog(LOG_WARNING,
|
|
"Got actual frame rate range:"
|
|
" %g - %g "
|
|
"({%lld, %d} - {%lld, %d})",
|
|
range.minFrameRate, range.maxFrameRate,
|
|
range.maxFrameDuration.value,
|
|
range.maxFrameDuration.timescale,
|
|
range.minFrameDuration.value,
|
|
range.minFrameDuration.timescale);
|
|
}
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static bool operator==(const media_frames_per_second &a,
|
|
const media_frames_per_second &b)
|
|
{
|
|
return a.numerator == b.numerator && a.denominator == b.denominator;
|
|
}
|
|
|
|
static bool operator!=(const media_frames_per_second &a,
|
|
const media_frames_per_second &b)
|
|
{
|
|
return !(a == b);
|
|
}
|
|
|
|
static bool frame_rate_property_needs_update(obs_property_t *p,
|
|
const frame_rates_t &frame_rates)
|
|
{
|
|
auto fps_num = frame_rates.size();
|
|
auto num = obs_property_frame_rate_fps_ranges_count(p);
|
|
if (fps_num != num)
|
|
return true;
|
|
|
|
vector<bool> fps_found(fps_num);
|
|
for (size_t i = 0; i < num; i++) {
|
|
auto min_ = obs_property_frame_rate_fps_range_min(p, i);
|
|
auto max_ = obs_property_frame_rate_fps_range_max(p, i);
|
|
|
|
auto it = find(begin(frame_rates), end(frame_rates),
|
|
make_pair(min_, max_));
|
|
if (it == end(frame_rates))
|
|
return true;
|
|
|
|
fps_found[it - begin(frame_rates)] = true;
|
|
}
|
|
|
|
return any_of(begin(fps_found), end(fps_found),
|
|
[](bool b) { return !b; });
|
|
}
|
|
|
|
static bool update_frame_rate_property(obs_properties_t *props,
|
|
const config_helper &conf,
|
|
obs_property_t *p = nullptr)
|
|
{
|
|
if (!p)
|
|
p = obs_properties_get(props, "frame_rate");
|
|
|
|
if (!p)
|
|
return false;
|
|
|
|
auto valid_dims = conf.dims();
|
|
auto frame_rates = enumerate_frame_rates(conf.dev(), valid_dims);
|
|
|
|
bool was_enabled = obs_property_enabled(p);
|
|
obs_property_set_enabled(p, !frame_rates.empty());
|
|
|
|
if (!frame_rate_property_needs_update(p, frame_rates))
|
|
return was_enabled != obs_property_enabled(p);
|
|
|
|
obs_property_frame_rate_fps_ranges_clear(p);
|
|
for (auto &pair : frame_rates)
|
|
obs_property_frame_rate_fps_range_add(p, pair.first,
|
|
pair.second);
|
|
|
|
return true;
|
|
}
|
|
|
|
static vector<AVCaptureDeviceFormat *>
|
|
enumerate_formats(AVCaptureDevice *dev, const CMVideoDimensions &dims,
|
|
const media_frames_per_second &fps)
|
|
{
|
|
vector<AVCaptureDeviceFormat *> result;
|
|
|
|
find_formats(fps, dev, &dims, [&](AVCaptureDeviceFormat *format) {
|
|
result.push_back(format);
|
|
return false;
|
|
});
|
|
|
|
return result;
|
|
}
|
|
|
|
static bool input_format_property_needs_update(
|
|
obs_property_t *p, const vector<AVCaptureDeviceFormat *> &formats,
|
|
const FourCharCode *fourcc_)
|
|
{
|
|
bool fourcc_found = !fourcc_;
|
|
vector<bool> if_found(formats.size());
|
|
|
|
auto num = obs_property_list_item_count(p);
|
|
for (size_t i = 1; i < num; i++) { // skip auto entry
|
|
FourCharCode fourcc = obs_property_list_item_int(p, i);
|
|
fourcc_found = fourcc_found || fourcc == *fourcc_;
|
|
|
|
auto pos = find_if(begin(formats), end(formats),
|
|
[&](AVCaptureDeviceFormat *format) {
|
|
FourCharCode fourcc_ = 0;
|
|
format_description_subtype_name(
|
|
format.formatDescription,
|
|
&fourcc_);
|
|
return fourcc_ == fourcc;
|
|
});
|
|
if (pos == end(formats))
|
|
return true;
|
|
|
|
if_found[pos - begin(formats)] = true;
|
|
}
|
|
|
|
return fourcc_found || any_of(begin(if_found), end(if_found),
|
|
[](bool b) { return !b; });
|
|
}
|
|
|
|
static bool update_input_format_property(obs_properties_t *props,
|
|
const config_helper &conf,
|
|
obs_property_t *p = nullptr)
|
|
{
|
|
if (!p)
|
|
p = obs_properties_get(props, "input_format");
|
|
|
|
if (!p)
|
|
return false;
|
|
|
|
auto update_enabled = [&](bool enabled) {
|
|
bool was_enabled = obs_property_enabled(p);
|
|
obs_property_set_enabled(p, enabled);
|
|
return was_enabled != enabled;
|
|
};
|
|
|
|
auto valid_dims = conf.dims();
|
|
auto valid_fps = conf.fps();
|
|
auto valid_if = conf.input_format();
|
|
|
|
if (!valid_dims || !valid_fps)
|
|
return update_enabled(false);
|
|
|
|
auto formats = enumerate_formats(conf.dev(), *valid_dims, *valid_fps);
|
|
if (!input_format_property_needs_update(p, formats, valid_if))
|
|
return update_enabled(!formats.empty());
|
|
|
|
while (obs_property_list_item_count(p) > 1)
|
|
obs_property_list_item_remove(p, 1);
|
|
|
|
bool fourcc_found = !valid_if || *valid_if == INPUT_FORMAT_AUTO;
|
|
for (auto &format : formats) {
|
|
FourCharCode fourcc = 0;
|
|
const char *name = format_description_subtype_name(
|
|
format.formatDescription, &fourcc);
|
|
obs_property_list_add_int(p, name, fourcc);
|
|
fourcc_found = fourcc_found || fourcc == *valid_if;
|
|
}
|
|
|
|
if (!fourcc_found) {
|
|
const char *name = fourcc_subtype_name(*valid_if);
|
|
obs_property_list_add_int(p, name, *valid_if);
|
|
}
|
|
|
|
return update_enabled(!formats.empty());
|
|
}
|
|
|
|
static bool update_int_list_property(obs_property_t *p, const int *val,
|
|
const size_t count,
|
|
const char *localization_name)
|
|
{
|
|
size_t num = obs_property_list_item_count(p);
|
|
if (num > count) {
|
|
if (!val || obs_property_list_item_int(p, count) != *val) {
|
|
obs_property_list_item_remove(p, count);
|
|
|
|
if (!val)
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!val)
|
|
return false;
|
|
|
|
DStr buf, label;
|
|
dstr_printf(buf, "%d", *val);
|
|
dstr_init_copy(label, obs_module_text(localization_name));
|
|
dstr_replace(label, "$1", buf->array);
|
|
size_t idx = obs_property_list_add_int(p, label->array, *val);
|
|
obs_property_list_item_disable(p, idx, true);
|
|
|
|
return true;
|
|
}
|
|
|
|
template<typename Func>
|
|
static bool
|
|
update_int_list_property(const char *prop_name, const char *localization_name,
|
|
size_t count, int auto_val, bool (*valid_func)(int),
|
|
obs_properties_t *props, const config_helper &conf,
|
|
obs_property_t *p, Func get_val)
|
|
{
|
|
auto ref = get_ref(props);
|
|
if (!p)
|
|
p = obs_properties_get(props, prop_name);
|
|
|
|
int val = obs_data_get_int(conf.settings, prop_name);
|
|
|
|
av_video_info vi;
|
|
if (ref)
|
|
vi = ref->video_info.read();
|
|
|
|
bool params_valid = vi.video_params_valid;
|
|
bool enabled = obs_property_enabled(p);
|
|
bool should_enable = false;
|
|
bool has_autoselect =
|
|
obs_data_has_autoselect_value(conf.settings, prop_name);
|
|
|
|
if ((params_valid && format_is_yuv(ref->frame.format)) ||
|
|
!valid_func(val))
|
|
should_enable = true;
|
|
|
|
obs_property_set_enabled(p, should_enable);
|
|
bool updated = enabled != should_enable;
|
|
|
|
updated = update_int_list_property(p, valid_func(val) ? nullptr : &val,
|
|
count, localization_name) ||
|
|
updated;
|
|
|
|
if (!should_enable) {
|
|
if (has_autoselect)
|
|
obs_data_unset_autoselect_value(conf.settings,
|
|
prop_name);
|
|
return updated || has_autoselect;
|
|
}
|
|
|
|
bool use_autoselect = ref && val == auto_val;
|
|
if (!use_autoselect) {
|
|
if (has_autoselect)
|
|
obs_data_unset_autoselect_value(conf.settings,
|
|
prop_name);
|
|
return updated || has_autoselect;
|
|
}
|
|
|
|
if (params_valid && get_val(vi) != obs_data_get_autoselect_int(
|
|
conf.settings, prop_name)) {
|
|
obs_data_set_autoselect_int(conf.settings, prop_name,
|
|
get_val(vi));
|
|
return true;
|
|
}
|
|
|
|
return updated;
|
|
}
|
|
|
|
static bool update_color_space_property(obs_properties_t *props,
|
|
const config_helper &conf,
|
|
obs_property_t *p = nullptr)
|
|
{
|
|
return update_int_list_property("color_space", TEXT_COLOR_UNKNOWN_NAME,
|
|
4, COLOR_SPACE_AUTO, color_space_valid,
|
|
props, conf, p, [](av_video_info vi) {
|
|
return vi.colorspace;
|
|
});
|
|
}
|
|
|
|
static bool update_video_range_property(obs_properties_t *props,
|
|
const config_helper &conf,
|
|
obs_property_t *p = nullptr)
|
|
{
|
|
return update_int_list_property("video_range", TEXT_RANGE_UNKNOWN_NAME,
|
|
5, VIDEO_RANGE_AUTO, video_range_valid,
|
|
props, conf, p, [](av_video_info vi) {
|
|
return vi.video_range;
|
|
});
|
|
}
|
|
|
|
static bool properties_device_changed(obs_properties_t *props,
|
|
obs_property_t *p, obs_data_t *settings)
|
|
{
|
|
NSString *uid = get_string(settings, "device");
|
|
AVCaptureDevice *dev = [AVCaptureDevice deviceWithUniqueID:uid];
|
|
|
|
NSString *name = get_string(settings, "device_name");
|
|
bool dev_list_updated =
|
|
update_device_list(p, uid, name, !dev && uid.length);
|
|
|
|
p = obs_properties_get(props, "preset");
|
|
bool preset_list_changed = check_preset(dev, p, settings);
|
|
bool autoselect_changed = autoselect_preset(dev, settings);
|
|
|
|
config_helper conf{settings};
|
|
bool res_changed = update_resolution_property(props, conf);
|
|
bool fps_changed = update_frame_rate_property(props, conf);
|
|
bool if_changed = update_input_format_property(props, conf);
|
|
|
|
return preset_list_changed || autoselect_changed || dev_list_updated ||
|
|
res_changed || fps_changed || if_changed;
|
|
}
|
|
|
|
static bool properties_use_preset_changed(obs_properties_t *props,
|
|
obs_property_t *,
|
|
obs_data_t *settings)
|
|
{
|
|
auto use_preset = obs_data_get_bool(settings, "use_preset");
|
|
|
|
config_helper conf{settings};
|
|
|
|
bool updated = false;
|
|
bool visible = false;
|
|
obs_property_t *p = nullptr;
|
|
|
|
auto noop = [](obs_properties_t *, const config_helper &,
|
|
obs_property_t *) { return false; };
|
|
|
|
#define UPDATE_PROPERTY(prop, uses_preset, func) \
|
|
p = obs_properties_get(props, prop); \
|
|
visible = use_preset == uses_preset; \
|
|
updated = obs_property_visible(p) != visible || updated; \
|
|
obs_property_set_visible(p, visible); \
|
|
updated = func(props, conf, p) || updated;
|
|
|
|
UPDATE_PROPERTY("preset", true, noop);
|
|
UPDATE_PROPERTY("resolution", false, update_resolution_property);
|
|
UPDATE_PROPERTY("frame_rate", false, update_frame_rate_property);
|
|
UPDATE_PROPERTY("input_format", false, update_input_format_property);
|
|
UPDATE_PROPERTY("color_space", false, update_color_space_property);
|
|
UPDATE_PROPERTY("video_range", false, update_video_range_property);
|
|
|
|
return updated;
|
|
}
|
|
|
|
static bool properties_preset_changed(obs_properties_t *, obs_property_t *p,
|
|
obs_data_t *settings)
|
|
{
|
|
NSString *uid = get_string(settings, "device");
|
|
AVCaptureDevice *dev = [AVCaptureDevice deviceWithUniqueID:uid];
|
|
|
|
bool preset_list_changed = check_preset(dev, p, settings);
|
|
bool autoselect_changed = autoselect_preset(dev, settings);
|
|
|
|
return preset_list_changed || autoselect_changed;
|
|
}
|
|
|
|
static bool properties_resolution_changed(obs_properties_t *props,
|
|
obs_property_t *p,
|
|
obs_data_t *settings)
|
|
{
|
|
config_helper conf{settings};
|
|
|
|
bool res_updated = update_resolution_property(props, conf, p);
|
|
bool fps_updated = update_frame_rate_property(props, conf);
|
|
bool if_updated = update_input_format_property(props, conf);
|
|
bool cs_updated = update_color_space_property(props, conf);
|
|
bool cr_updated = update_video_range_property(props, conf);
|
|
|
|
return res_updated || fps_updated || if_updated || cs_updated ||
|
|
cr_updated;
|
|
}
|
|
|
|
static bool properties_frame_rate_changed(obs_properties_t *props,
|
|
obs_property_t *p,
|
|
obs_data_t *settings)
|
|
{
|
|
config_helper conf{settings};
|
|
|
|
bool fps_updated = update_frame_rate_property(props, conf, p);
|
|
bool if_updated = update_input_format_property(props, conf);
|
|
bool cs_updated = update_color_space_property(props, conf);
|
|
bool cr_updated = update_video_range_property(props, conf);
|
|
|
|
return fps_updated || if_updated || cs_updated || cr_updated;
|
|
}
|
|
|
|
static bool properties_input_format_changed(obs_properties_t *props,
|
|
obs_property_t *p,
|
|
obs_data_t *settings)
|
|
{
|
|
config_helper conf{settings};
|
|
|
|
bool if_updated = update_input_format_property(props, conf, p);
|
|
bool cs_updated = update_color_space_property(props, conf);
|
|
bool cr_updated = update_video_range_property(props, conf);
|
|
|
|
return if_updated || cs_updated || cr_updated;
|
|
}
|
|
|
|
static bool properties_color_space_changed(obs_properties_t *props,
|
|
obs_property_t *p,
|
|
obs_data_t *settings)
|
|
{
|
|
config_helper conf{settings};
|
|
|
|
return update_color_space_property(props, conf, p);
|
|
}
|
|
|
|
static bool properties_video_range_changed(obs_properties_t *props,
|
|
obs_property_t *p,
|
|
obs_data_t *settings)
|
|
{
|
|
config_helper conf{settings};
|
|
|
|
return update_video_range_property(props, conf, p);
|
|
}
|
|
|
|
static void add_properties_param(obs_properties_t *props, av_capture *capture)
|
|
{
|
|
auto param =
|
|
unique_ptr<properties_param>(new properties_param(capture));
|
|
|
|
obs_properties_set_param(props, param.release(), [](void *param) {
|
|
delete static_cast<properties_param *>(param);
|
|
});
|
|
}
|
|
|
|
static void add_preset_properties(obs_properties_t *props)
|
|
{
|
|
obs_property_t *preset_list = obs_properties_add_list(
|
|
props, "preset", TEXT_PRESET, OBS_COMBO_TYPE_LIST,
|
|
OBS_COMBO_FORMAT_STRING);
|
|
for (NSString *preset in presets())
|
|
obs_property_list_add_string(preset_list,
|
|
preset_names(preset).UTF8String,
|
|
preset.UTF8String);
|
|
|
|
obs_property_set_modified_callback(preset_list,
|
|
properties_preset_changed);
|
|
}
|
|
|
|
static void add_manual_properties(obs_properties_t *props)
|
|
{
|
|
obs_property_t *resolutions = obs_properties_add_list(
|
|
props, "resolution", TEXT_RESOLUTION, OBS_COMBO_TYPE_LIST,
|
|
OBS_COMBO_FORMAT_STRING);
|
|
obs_property_set_enabled(resolutions, false);
|
|
obs_property_set_modified_callback(resolutions,
|
|
properties_resolution_changed);
|
|
|
|
obs_property_t *frame_rates = obs_properties_add_frame_rate(
|
|
props, "frame_rate", TEXT_FRAME_RATE);
|
|
/*obs_property_frame_rate_option_add(frame_rates, "match obs",
|
|
TEXT_MATCH_OBS);*/
|
|
obs_property_set_enabled(frame_rates, false);
|
|
obs_property_set_modified_callback(frame_rates,
|
|
properties_frame_rate_changed);
|
|
|
|
obs_property_t *input_format = obs_properties_add_list(
|
|
props, "input_format", TEXT_INPUT_FORMAT, OBS_COMBO_TYPE_LIST,
|
|
OBS_COMBO_FORMAT_INT);
|
|
obs_property_list_add_int(input_format, TEXT_AUTO, INPUT_FORMAT_AUTO);
|
|
obs_property_set_enabled(input_format, false);
|
|
obs_property_set_modified_callback(input_format,
|
|
properties_input_format_changed);
|
|
|
|
obs_property_t *color_space = obs_properties_add_list(
|
|
props, "color_space", TEXT_COLOR_SPACE, OBS_COMBO_TYPE_LIST,
|
|
OBS_COMBO_FORMAT_INT);
|
|
obs_property_list_add_int(color_space, TEXT_AUTO, COLOR_SPACE_AUTO);
|
|
obs_property_list_add_int(color_space, "Rec. 601", VIDEO_CS_601);
|
|
obs_property_list_add_int(color_space, "Rec. 709", VIDEO_CS_709);
|
|
obs_property_set_enabled(color_space, false);
|
|
obs_property_set_modified_callback(color_space,
|
|
properties_color_space_changed);
|
|
|
|
#define ADD_RANGE(x) obs_property_list_add_int(video_range, TEXT_##x, VIDEO_##x)
|
|
obs_property_t *video_range = obs_properties_add_list(
|
|
props, "video_range", TEXT_VIDEO_RANGE, OBS_COMBO_TYPE_LIST,
|
|
OBS_COMBO_FORMAT_INT);
|
|
obs_property_list_add_int(video_range, TEXT_AUTO, VIDEO_RANGE_AUTO);
|
|
ADD_RANGE(RANGE_PARTIAL);
|
|
ADD_RANGE(RANGE_FULL);
|
|
obs_property_set_enabled(video_range, false);
|
|
obs_property_set_modified_callback(video_range,
|
|
properties_video_range_changed);
|
|
#undef ADD_RANGE
|
|
}
|
|
|
|
static obs_properties_t *av_capture_properties(void *capture)
|
|
{
|
|
obs_properties_t *props = obs_properties_create();
|
|
|
|
add_properties_param(props, static_cast<av_capture *>(capture));
|
|
|
|
obs_property_t *dev_list = obs_properties_add_list(
|
|
props, "device", TEXT_DEVICE, OBS_COMBO_TYPE_LIST,
|
|
OBS_COMBO_FORMAT_STRING);
|
|
obs_property_list_add_string(dev_list, "", "");
|
|
|
|
for (AVCaptureDevice *dev in [AVCaptureDevice devices]) {
|
|
if ([dev hasMediaType:AVMediaTypeVideo] ||
|
|
[dev hasMediaType:AVMediaTypeMuxed]) {
|
|
obs_property_list_add_string(
|
|
dev_list, dev.localizedName.UTF8String,
|
|
dev.uniqueID.UTF8String);
|
|
}
|
|
}
|
|
|
|
obs_property_set_modified_callback(dev_list, properties_device_changed);
|
|
|
|
obs_property_t *use_preset =
|
|
obs_properties_add_bool(props, "use_preset", TEXT_USE_PRESET);
|
|
obs_property_set_modified_callback(use_preset,
|
|
properties_use_preset_changed);
|
|
|
|
add_preset_properties(props);
|
|
|
|
add_manual_properties(props);
|
|
|
|
obs_properties_add_bool(props, "buffering",
|
|
obs_module_text("Buffering"));
|
|
|
|
return props;
|
|
}
|
|
|
|
static void switch_device(av_capture *capture, NSString *uid,
|
|
obs_data_t *settings)
|
|
{
|
|
if (!uid)
|
|
return;
|
|
|
|
if (capture->device)
|
|
remove_device(capture);
|
|
|
|
capture->uid = uid;
|
|
|
|
if (!uid.length) {
|
|
AVLOG(LOG_INFO, "No device selected, stopping capture");
|
|
return;
|
|
}
|
|
|
|
AVCaptureDevice *dev = [AVCaptureDevice deviceWithUniqueID:uid];
|
|
if (!dev) {
|
|
AVLOG(LOG_WARNING, "Device with unique id '%s' not found",
|
|
uid.UTF8String);
|
|
return;
|
|
}
|
|
|
|
capture_device(capture, dev, settings);
|
|
}
|
|
|
|
static void update_preset(av_capture *capture, obs_data_t *settings)
|
|
{
|
|
unlock_device(capture);
|
|
|
|
NSString *preset = get_string(settings, "preset");
|
|
if (![capture->device supportsAVCaptureSessionPreset:preset]) {
|
|
AVLOG(LOG_WARNING, "Preset %s not available",
|
|
preset.UTF8String);
|
|
preset = select_preset(capture->device, preset);
|
|
}
|
|
|
|
capture->session.sessionPreset = preset;
|
|
AVLOG(LOG_INFO, "Selected preset %s", preset.UTF8String);
|
|
|
|
start_capture(capture);
|
|
}
|
|
|
|
static void update_manual(av_capture *capture, obs_data_t *settings)
|
|
{
|
|
if (init_manual(capture, capture->device, settings))
|
|
start_capture(capture);
|
|
}
|
|
|
|
static void av_capture_update(void *data, obs_data_t *settings)
|
|
{
|
|
auto capture = static_cast<av_capture *>(data);
|
|
|
|
NSString *uid = get_string(settings, "device");
|
|
|
|
if (!capture->device || ![capture->device.uniqueID isEqualToString:uid])
|
|
return switch_device(capture, uid, settings);
|
|
|
|
if ((capture->use_preset = obs_data_get_bool(settings, "use_preset"))) {
|
|
update_preset(capture, settings);
|
|
} else {
|
|
update_manual(capture, settings);
|
|
}
|
|
|
|
av_capture_enable_buffering(capture,
|
|
obs_data_get_bool(settings, "buffering"));
|
|
}
|
|
|
|
OBS_DECLARE_MODULE()
|
|
OBS_MODULE_USE_DEFAULT_LOCALE("mac-avcapture", "en-US")
|
|
MODULE_EXPORT const char *obs_module_description(void)
|
|
{
|
|
return "MacOS AVFoundation Capture source";
|
|
}
|
|
|
|
bool obs_module_load(void)
|
|
{
|
|
#ifdef __MAC_10_10
|
|
// Enable iOS device to show up as AVCapture devices
|
|
// From WWDC video 2014 #508 at 5:34
|
|
// https://developer.apple.com/videos/wwdc/2014/#508
|
|
CMIOObjectPropertyAddress prop = {
|
|
kCMIOHardwarePropertyAllowScreenCaptureDevices,
|
|
kCMIOObjectPropertyScopeGlobal,
|
|
kCMIOObjectPropertyElementMaster};
|
|
UInt32 allow = 1;
|
|
CMIOObjectSetPropertyData(kCMIOObjectSystemObject, &prop, 0, NULL,
|
|
sizeof(allow), &allow);
|
|
#endif
|
|
|
|
obs_source_info av_capture_info = {
|
|
.id = "av_capture_input",
|
|
.type = OBS_SOURCE_TYPE_INPUT,
|
|
.output_flags = OBS_SOURCE_ASYNC_VIDEO |
|
|
OBS_SOURCE_DO_NOT_DUPLICATE,
|
|
.get_name = av_capture_getname,
|
|
.create = av_capture_create,
|
|
.destroy = av_capture_destroy,
|
|
.get_defaults = av_capture_defaults,
|
|
.get_properties = av_capture_properties,
|
|
.update = av_capture_update,
|
|
};
|
|
|
|
obs_register_source(&av_capture_info);
|
|
return true;
|
|
}
|