vo_zr2 moves to subopt-helper (per Alex's request)

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14429 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 57 insertions, 44 deletions

diff --git a/libvo/vo_zr2.c b/libvo/vo_zr2.c
index 7cf54fc509..42c0ee7001 100644
--- a/libvo/vo_zr2.c
+++ b/libvo/vo_zr2.c
@@ -1,7 +1,7 @@
 /* 
  * vo_zr2.c - playback on zoran cards 
  * Based on vo_zr.c,v 1.27
- * Copyright (C) Rik Snel 2001-2003, License GNU GPL v2
+ * Copyright (C) Rik Snel 2001-2005, License GNU GPL v2
  */
 
 /* $Id$ */
@@ -26,6 +26,7 @@
 #include "video_out.h"
 #include "video_out_internal.h"
 #include "mp_msg.h"
+#include "subopt-helper.h"
 #include "fastmemcpy.h"
 
 static vo_info_t info = {
@@ -77,7 +78,7 @@ static void stop_playing(vo_zr2_priv_t *p) {
 	}
 }
 
-static char *guess_device(char *suggestion) {
+static const char *guess_device(const char *suggestion, int inform) {
 	struct stat vstat;
 	int res;
 	char *devs[] = {
@@ -98,7 +99,7 @@ static char *guess_device(char *suggestion) {
 
 		res = stat(suggestion, &vstat);
 		if (res == 0 && S_ISCHR(vstat.st_mode)) {
-			VERBOSE("using device %s\n", suggestion);
+			if (inform) VERBOSE("using device %s\n", suggestion);
 			return suggestion;
 		} else {
 			if (res != 0) ERROR("%s does not exist\n", suggestion);
@@ -155,7 +156,7 @@ static uint32_t draw_image(mp_image_t *mpi) {
 	return VO_TRUE;
 }
 
-static char *normstring(int norm) {
+static const char *normstring(int norm) {
 	switch (norm) {
 		case VIDEO_MODE_PAL:
 			return "PAL";
@@ -169,54 +170,66 @@ static char *normstring(int norm) {
 	return "undefined";
 }
 
+static int get_norm(strarg_t *n) {
+	if (!strncmp(n->str, "PAL", n->len)) return VIDEO_MODE_PAL;
+	if (!strncmp(n->str, "NTSC", n->len)) return VIDEO_MODE_NTSC;
+	if (!strncmp(n->str, "SECAM", n->len)) return VIDEO_MODE_SECAM;
+	if (!strncmp(n->str, "auto", n->len)) return VIDEO_MODE_AUTO;
+	return -1; /* invalid */
+}
+
+static int nc(strarg_t *norm) {
+	if (get_norm(norm) == -1) {
+		ERROR("norm \"%.*s\" is not supported, choose from PAL, NTSC, SECAM and auto\n", norm->len, norm->str);
+		return 0;
+	} else return 1;
+}
+
+static int pbc(int *prebuf) {
+	if (*prebuf) WARNING("prebuffering is not yet supported\n");
+	return 1;
+}
+
 static uint32_t preinit(const char *arg) {
-	char *dev = NULL, *ptr = NULL, *tmp;
+	strarg_t dev_arg = { 0, NULL }, norm_arg = { 0, NULL };
 	vo_zr2_priv_t *p = &priv;
-	int last = 0, norm = VIDEO_MODE_AUTO;
+	const char *dev = NULL;
+	char dev_arg_str[256];
+	int norm = VIDEO_MODE_AUTO, prebuf = 0;
+	opt_t subopts[] = { /* don't want warnings with -Wall... */
+		{ "dev",    OPT_ARG_STR,  &dev_arg,   NULL, 	       0 },
+		{ "prebuf", OPT_ARG_BOOL, &prebuf,    (opt_test_f)pbc, 0 },
+		{ "norm",   OPT_ARG_STR,  &norm_arg,  (opt_test_f)nc,  0 },
+		{ NULL,     0, 		  NULL,	      NULL, 	       0 }
+	};
 
-	VERBOSE("preinit() called\n");
+	VERBOSE("preinit() called with arg: %s\n", arg);
 	memset(p, 0, sizeof(*p)); /* set defaults */
 	p->vdes = -1;
 
-	if (arg) {
-		/* save subdevice string */
-		p->subdevice = strdup(arg);
-		if (!p->subdevice) {
-			ERROR("out of memory, this is bad\n");
-			uninit();
-			return 1;
-		}
-
-		tmp = ptr = p->subdevice;
-		do {
-			while (*tmp != ':' && *tmp) tmp++;
-			if (*tmp == ':') *tmp++ = '\0';
-			else last = 1;
-			DBG2("processing subdevice option \"%s\"\n", ptr);
-			if (!strncmp("dev=", ptr, 4)) {
-				dev = ptr + 4;
-				VERBOSE("user specified device \"%s\"\n", dev);
-			} else if (!strcasecmp("PAL", ptr)) {
-				norm = VIDEO_MODE_PAL;
-				VERBOSE("user specified video norm PAL\n");
-			} else if (!strcasecmp("SECAM", ptr)) {
-				norm = VIDEO_MODE_SECAM;
-				VERBOSE("user specified video norm SECAM\n");
-			} else if (!strcasecmp("NTSC", ptr)) {
-				norm = VIDEO_MODE_NTSC;
-				VERBOSE("user specified video norm NTSC\n");
-			} else if (!strcmp("prebuf", ptr)) {
-				WARNING("prebuffering is not yet supported\n");
-			} else {
-				WARNING("ignoring unknown subdevice option " 
-						"\"%s\", or missing argument\n",
-						ptr);
-			}
-			ptr = tmp;
-		} while (!last);
+	if (subopt_parse(arg, subopts)) {
+		mp_msg(MSGT_VO, MSGL_FATAL,
+				"Allowed suboptions for -vo zr2 are:\n"
+				"-  dev=DEVICE               (default: %s)\n"
+				"-  norm=PAL|NTSC|SECAM|auto (default: auto)\n"
+				"-  prebuf/noprebuf          (default:"
+				" noprebuf)\n"
+				"\n"
+				"Example: mplayer -vo zr2:dev=/dev/video1:"
+				"norm=PAL movie.avi\n\n"
+				, guess_device(NULL, 0));
+		return -1;
+	}
+				
+	/* interpret the strings we got from subopt_parse */
+	if (norm_arg.len) norm = get_norm(&norm_arg);
+	if (dev_arg.len) {  /* produce a proper ASCIIZ from dev_arg */
+		memcpy(dev_arg_str, dev_arg.str, dev_arg.len);
+		dev_arg_str[dev_arg.len] = '\0';
+		dev = dev_arg_str;
 	}
 
-	dev = guess_device(dev);
+	dev = guess_device(dev, 1);
 	if (!dev) {
 		uninit();
 		return 1;