function varargout = audio_gui(varargin)
% AUDIO_GUI M-file for audio_gui.fig
%      AUDIO_GUI, by itself, creates a new AUDIO_GUI or raises the existing
%      singleton*.
%
%      H = AUDIO_GUI returns the handle to a new AUDIO_GUI or the handle to
%      the existing singleton*.
%
%      AUDIO_GUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in AUDIO_GUI.M with the given input arguments.
%
%      AUDIO_GUI('Property','Value',...) creates a new AUDIO_GUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before audio_gui_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to audio_gui_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help audio_gui

% Last Modified by GUIDE v2.5 18-May-2008 11:45:31

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @audio_gui_OpeningFcn, ...
                   'gui_OutputFcn',  @audio_gui_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before audio_gui is made visible.
function audio_gui_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to audio_gui (see VARARGIN)

% Choose default command line output for audio_gui
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes audio_gui wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = audio_gui_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes on button press in btn_stop.
function btn_stop_Callback(hObject, eventdata, handles)
% hObject    handle to btn_stop (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
stop(handles.h_player);
guidata(hObject, handles);

% --- Executes on button press in btn_Pause.
function btn_Pause_Callback(hObject, eventdata, handles)
% hObject    handle to btn_Pause (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
pause(handles.h_player);
guidata(hObject, handles);

% --- Executes on button press in btn_load.
function btn_load_Callback(hObject, eventdata, handles)
% hObject    handle to btn_load (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

[v_signal, d_sample_num, d_sample_freq] = f_read_data_16('rafarin_16k.wav', 16, 0);
handles.v_signal_norm = v_signal ./ max(abs(v_signal));
handles.v_time = (0:d_sample_num-1)./d_sample_freq;
plot(handles.v_time, handles.v_signal_norm);
xlabel('Time (s)')
ylabel('Amplitude')
title('Audio Player Demo with Dynamic Crosshairs')
handles.h_player = audioplayer(handles.v_signal_norm, d_sample_freq);
f_ui_crosshairs_x(handles.axes2, handles.h_player, handles.v_time(1));
%play(handles.h_player);
guidata(hObject, handles);

% --- Executes on button press in btn_resume.
function btn_resume_Callback(hObject, eventdata, handles)
% hObject    handle to btn_resume (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
resume(handles.h_player);
guidata(hObject, handles);