[xiph-commits] r14128 - in experimental/ribamar/etheora/examples: . client-server-ssl

[ribamar at svn.xiph.org]

Author: ribamar
Date: 2007-11-10 14:06:19 -0800 (Sat, 10 Nov 2007)
New Revision: 14128

Added:
   experimental/ribamar/etheora/examples/client-server-ssl/
   experimental/ribamar/etheora/examples/client-server-ssl/README.txt
   experimental/ribamar/etheora/examples/client-server-ssl/client-decoder.c
Log:
creating example: an encoding server/decoding client where data is trasnfert through a secured channel. commiting sdl-client first version (not secured). 

Added: experimental/ribamar/etheora/examples/client-server-ssl/README.txt
===================================================================
--- experimental/ribamar/etheora/examples/client-server-ssl/README.txt	                        (rev 0)
+++ experimental/ribamar/etheora/examples/client-server-ssl/README.txt	2007-11-10 22:06:19 UTC (rev 14128)
@@ -0,0 +1,7 @@
+
+this example features 2 programs: a server that encodes some data and accepts
+connections from clients. 
+
+
+command line example: 
+ gcc client-decoder.c etheora.c  -I. -ltheora -lssl -lSDL -o client-decoder

Added: experimental/ribamar/etheora/examples/client-server-ssl/client-decoder.c
===================================================================
--- experimental/ribamar/etheora/examples/client-server-ssl/client-decoder.c	                        (rev 0)
+++ experimental/ribamar/etheora/examples/client-server-ssl/client-decoder.c	2007-11-10 22:06:19 UTC (rev 14128)
@@ -0,0 +1,122 @@
+/*Copyright, 2007, by Ribamar Santarosa, ribamar at gmail.com */
+
+/*
+  a bit more sofisticated theora video decoder using etheora. this 
+  example is an client which reads data from a (encoder) server. data
+  is read from the server though an SSL layer. Video is outputted 
+  into an SDL window. 
+
+  note this doesn't have a good performance yet and can't deal with 
+  the real fps rate. 
+
+  usage: 
+  ./client-decoder [file.ogv] 
+  file.ogv: file to read video input. if none is passed, data is read
+  from standard input.
+
+  build command line example (with gcc): 
+  gcc client-decoder.c path/to/etheora.c  -I/path/to/etheora.h/dir \
+  		-ltheora -lssl -lSDL -o client-decoder
+
+*/
+
+#include <etheora.h>
+#include <stdio.h>
+#include <SDL/SDL.h>
+#include <SDL/SDL_endian.h>
+
+
+int main(int argc, char **args){
+	int i, j; 
+	etheora_ctx ec; 
+	FILE *finfo, *fin; 
+	float r, g, b; 
+	SDL_Surface *scr; 
+	SDL_Event sev; 
+
+	/* opening video input file and file to print debuf info. as 
+	   always, sockets could be used. Degub.txt can have a fast 
+	   increase, you may want open a null device file as 
+	   /dev/null. */
+	finfo = fopen("Debug.txt", "w"); 
+	if(argc > 1) {
+		fin = fopen(args[1], "r"); 
+	}
+	else {
+		fin = stdin; 
+		fprintf(stderr, "opening standard input as video file. \n"); 
+	}
+	if(fin == NULL || finfo == NULL){
+		fprintf(stderr, "Debug.txt or input file couldn't be open.\n"); 
+		return 1; 
+	}
+	fprintf(stderr, "debug info in Debug.txt.\n"); 
+
+	/* configuring decoder. */
+	etheora_dec_setup(&ec, fin, finfo);
+
+	/* start the decoder. */
+	if (etheora_dec_start(&ec)){
+		fprintf(stderr, "Can't start decoding.\n"); 
+		return 2; 
+	}
+
+	/*sdl stuff - setting video operation. */
+	scr = SDL_SetVideoMode(etheora_get_width(&ec), etheora_get_height(&ec),
+		16, SDL_SWSURFACE);
+		/*8, SDL_SWSURFACE);*/
+	if (scr == NULL){
+		fprintf(stderr, "Can't start video: %s.\n",  SDL_GetError()); 
+		return 3; 
+	}
+	fprintf(stderr, "Bytes per pixel: %i.\n", scr->format->BytesPerPixel); 
+
+
+	/*getting next frame from decoder or a window quit act.*/
+	while( !etheora_dec_nextframe(&ec) && sev.type != SDL_QUIT ){
+
+		/*sdl stuff - locking the screen so we can draw in the sdl
+		 * memory without changes appearing in  the screen. */
+		if(SDL_MUSTLOCK(scr)) SDL_LockSurface(scr); 
+		SDL_WaitEvent(&sev); 
+
+		/*now we can read the frame buffer data. */
+		for( i = 0; i < etheora_get_width(&ec); i++)
+			for( j = 0; j < etheora_get_height(&ec); j++){
+				/* or use etheora_dec_yuv draw() to 
+			           read in yuv colorspace.*/
+				etheora_dec_rgb_read(&ec, i, j, 
+					 &r, &g, &b);  
+
+				/* HERE YOU MAY DO WHAT YOU WANT
+				  WITH THE PIXEL. */
+				  /*
+				  *((Uint8 *)scr->pixels + j*scr->pitch/1 + i) = 
+				  SDL_MapRGB(scr->format, (Uint8)r, (Uint8)g, (Uint8)b); 
+				  */
+				  *((Uint16 *)scr->pixels + j*scr->pitch/2 + i) = 
+				  SDL_MapRGB(scr->format, (Uint8)r, (Uint8)g, (Uint8)b); 
+
+			}
+
+		/*sdl stuff - unlocking screen/drawing. */
+		if(SDL_MUSTLOCK(scr)) SDL_UnlockSurface(scr); 
+		/* if(sev.type == SDL_KEYDOWN) SDL_Quit(); */
+		SDL_Delay(10); 
+		SDL_Flip(scr); 
+		/*or SDL_UpdateRect(screen, 0, 0, width, height);*/
+
+	}
+
+	fprintf(stderr, "end of input data. \n"); 
+
+	SDL_Quit(); 
+
+	/* finishing the process. */
+	etheora_dec_finish(&ec); 
+
+
+	return 0; 
+}
+
+