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#ifndef CCAST_H
#define CCAST_H
/*
* Argyll Color Correction System
* ChromCast public API support
*
* Author: Graeme W. Gill
* Date: 8/9/2014
*
* Copyright 2014 Graeme W. Gill
* All rights reserved.
*
* This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :-
* see the License2.txt file for licencing details.
*
*/
/*
* This class provides simple access to the Google ChromeCast
* for the purposes of generating Video Test patches.
*/
#include "ccmdns.h" /* Function to get a list of ChromeCasts */
/* A ChromCast instance */
struct _ccast {
ccast_id id; /* Id of CromeCast being accessed */
struct _ccmessv *messv;
int requestId;
char *sessionId;
char *transportId;
/* Delete the ccast */
void (*del)(struct _ccast *p);
/* Load a URL */
int (*load)(struct _ccast *p, char *url, unsigned char *data, size_t dlen,
double bg[3], double x, double y, double w, double h);
/* Shut it down */
void (*shutdown)(struct _ccast *p);
/* Get the extra load delay */
int (*get_load_delay)(struct _ccast *p);
/* Return nz if we can send PNG directly as base64 + bg RGB, */
/* else have to setup webserver and send URL */
int (*get_direct_send)(struct _ccast *p);
/* Thread context */
athread *rmesth; /* Receive message thread */
struct _ccmes *rmes; /* Linked list of received messages */
amutex rlock; /* Receive list lock protecting rmes */
acond rcond; /* Condition for client to wait on */
int w_rq; /* NZ if client is waiting on message */
char *w_rqns; /* Message namespac client is waiting for (if !NULL) */
int w_rqid; /* Message rqid client is waiting for (0 = any) */
volatile int stop; /* Thread stop flag */
volatile int stopped; /* Thread reply flag */
/* Other */
int mediaSessionId;
int loaded1; /* Set to nz if at least one load succeeded */
int forcedef; /* Force using default reciever rather than patgen */
int patgenrcv; /* nz if pattern generator receiver, else default receiver */
int load_delay; /* Delay needed after succesful LOAD */
struct _ccast *next; /* Next in static list for signal cleanup */
}; typedef struct _ccast ccast;
/* Create a new ChromeCast */
/* Return NULL on error */
/* nz forcedef to force using default reciever & web server rather than pattern generator app. */
/* Can also set environment variabl "ARGYLL_CCAST_DEFAULT_RECEIVER" to do this. */
ccast *new_ccast(ccast_id *id, int forcedef);
/* Quantization model of ChromCast and TV */
/* ctx is a placeholder, and can be NULL */
/* Input & output RGB 0.0 - 1.0 levels */
void ccastQuant(void *ctx, double out[3], double in[3]);
/* Input RGB 8 bit 0 - 255 levels, output YCbCr 8 bit 16 - 235 levels */
void ccast2YCbCr(void *ctx, double out[3], double in[3]);
/* Input RGB 8 bit 0 - 255 levels, output YCbCr 8 bit 16 - 235 levels */
/* non-quanized or clipped */
void ccast2YCbCr_nq(void *ctx, double out[3], double in[3]);
/* Input YCbCr 8 bit 16 - 235 levels output RGB 8 bit 0 - 255 levels. */
/* Return nz if the output was clipped */
int YCbCr2ccast(void *ctx, double out[3], double in[3]);
/* Input YCbCr 8 bit 16 - 235 levels output RGB 8 bit 0 - 255 levels. */
/* non-quanized or clipped */
void YCbCr2ccast_nq(void *ctx, double out[3], double in[3]);
#define CCDITHSIZE 4
/* Compute pattern [width][height] */
/* return the delta to the target */
double get_ccast_dith(double ipat[CCDITHSIZE][CCDITHSIZE][3], double val[3]);
#define CCAST_H
#endif /* CCAST_H */
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