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Code Issues Releases Wiki Activity

Simplify handling SET_NORM for V4l1: replace several if-else-if and switch

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statements with one lookup table;



git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24817 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
voroshil 2007-10-20 11:46:15 +00:00
parent 6114954b08
commit 803d454576
1 changed files with 34 additions and 67 deletions
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101
stream/tvi_v4l.c
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@ -169,20 +169,32 @@ static const char *device_palette2name[] = {
};
#define PALETTE(x) ((x < sizeof(device_palette2name)/sizeof(char*)) ? device_palette2name[x] : "UNKNOWN")
static const struct {
char* name;
int normid;
int tuner_flags;
int tuner_mode;
int input_norm;
float fps;
} supported_norms[]={
{"pal", TV_NORM_PAL, VIDEO_TUNER_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, PAL_FPS },
{"ntsc", TV_NORM_NTSC, VIDEO_TUNER_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, NTSC_FPS},
{"secam", TV_NORM_SECAM, VIDEO_TUNER_SECAM, VIDEO_MODE_SECAM,VIDEO_MODE_SECAM,PAL_FPS },
{"palnc", TV_NORM_PALNC, VIDEO_TUNER_PAL, VIDEO_MODE_PAL, 3, PAL_FPS },
{"palm", TV_NORM_PALM, VIDEO_TUNER_NTSC, VIDEO_MODE_NTSC, 4, NTSC_FPS},
{"paln", TV_NORM_PALN, VIDEO_TUNER_PAL, VIDEO_MODE_PAL, 5, PAL_FPS },
{"ntscjp",TV_NORM_NTSCJP, VIDEO_TUNER_NTSC, VIDEO_MODE_NTSC, 6, NTSC_FPS},
{"auto", -1, -1, -1, VIDEO_MODE_AUTO, -1 },
{NULL, -1, -1, -1, -1 }
};
static const char *norm2name(int mode)
{
switch (mode) {
case VIDEO_MODE_PAL:
return "pal";
case VIDEO_MODE_SECAM:
return "secam";
case VIDEO_MODE_NTSC:
return "ntsc";
case VIDEO_MODE_AUTO:
return "auto";
default:
return "unknown";
}
int i;
for(i=0;supported_norms[i].name; i++)
if(supported_norms[i].input_norm==mode)
return supported_norms[i].name;
return "unknown";
};
static const char *audio_mode2name(int mode)
@ -1338,10 +1350,12 @@ static int control(priv_t *priv, int cmd, void *arg)
case TVI_CONTROL_TUN_SET_NORM:
{
int req_mode = *(int *)arg;
int norm_index;
for(norm_index=0;supported_norms[norm_index].name; norm_index++)
if(req_mode==supported_norms[norm_index].normid)
break;
if ((req_mode != TV_NORM_PAL) && (req_mode != TV_NORM_NTSC) && (req_mode != TV_NORM_SECAM)
&& (req_mode != TV_NORM_PALNC) && (req_mode != TV_NORM_PALM) && (req_mode != TV_NORM_PALN)
&& (req_mode != TV_NORM_NTSCJP)) {
if(!supported_norms[norm_index].name) {
mp_msg(MSGT_TV, MSGL_ERR, "Unknown norm!\n");
return(TVI_CONTROL_FALSE);
}
@ -1350,13 +1364,7 @@ static int control(priv_t *priv, int cmd, void *arg)
int prev_mode;
control(priv, TVI_CONTROL_TUN_GET_TUNER, 0);
if (((req_mode == TV_NORM_PAL
|| req_mode == TV_NORM_PALNC
|| req_mode == TV_NORM_PALN) && !(priv->tuner.flags & VIDEO_TUNER_PAL)) ||
((req_mode == TV_NORM_NTSC
|| req_mode == TV_NORM_NTSCJP
|| req_mode == TV_NORM_PALM) && !(priv->tuner.flags & VIDEO_TUNER_NTSC)) ||
((req_mode == TV_NORM_SECAM) && !(priv->tuner.flags & VIDEO_TUNER_SECAM)))
if(!(priv->tuner.flags & supported_norms[norm_index].tuner_flags))
{
mp_msg(MSGT_TV, MSGL_ERR, "Tuner isn't capable to set norm!\n");
return(TVI_CONTROL_FALSE);
@ -1364,21 +1372,7 @@ static int control(priv_t *priv, int cmd, void *arg)
prev_mode = priv->tuner.mode;
switch(req_mode) {
case TV_NORM_PAL:
case TV_NORM_PALNC:
case TV_NORM_PALN:
priv->tuner.mode = VIDEO_MODE_PAL;
break;
case TV_NORM_NTSC:
case TV_NORM_NTSCJP:
case TV_NORM_PALM:
priv->tuner.mode = VIDEO_MODE_NTSC;
break;
case TV_NORM_SECAM:
priv->tuner.mode = VIDEO_MODE_SECAM;
break;
}
priv->tuner.mode = supported_norms[norm_index].tuner_mode;
if (control(priv, TVI_CONTROL_TUN_SET_TUNER, &priv->tuner) != TVI_CONTROL_TRUE) {
// norm setting failed, but maybe it's only because it's fixed
@ -1387,29 +1381,8 @@ static int control(priv_t *priv, int cmd, void *arg)
}
switch(req_mode) {
case TV_NORM_PAL:
priv->channels[priv->act_channel].norm = VIDEO_MODE_PAL;
break;
case TV_NORM_NTSC:
priv->channels[priv->act_channel].norm = VIDEO_MODE_NTSC;
break;
case TV_NORM_SECAM:
priv->channels[priv->act_channel].norm = VIDEO_MODE_SECAM;
break;
case TV_NORM_PALNC:
priv->channels[priv->act_channel].norm = 3;
break;
case TV_NORM_PALM:
priv->channels[priv->act_channel].norm = 4;
break;
case TV_NORM_PALN:
priv->channels[priv->act_channel].norm = 5;
break;
case TV_NORM_NTSCJP:
priv->channels[priv->act_channel].norm = 6;
break;
}
priv->channels[priv->act_channel].norm = supported_norms[norm_index].input_norm;
if (ioctl(priv->video_fd, VIDIOCSCHAN, &priv->channels[priv->act_channel]) == -1)
{
mp_msg(MSGT_TV, MSGL_ERR, "ioctl set chan failed: %s\n", strerror(errno));
@ -1421,13 +1394,7 @@ static int control(priv_t *priv, int cmd, void *arg)
return(TVI_CONTROL_FALSE);
}
if(req_mode == TV_NORM_PAL || req_mode == TV_NORM_SECAM || req_mode == TV_NORM_PALN || req_mode == TV_NORM_PALNC) {
priv->fps = PAL_FPS;
}
if(req_mode == TV_NORM_NTSC || req_mode == TV_NORM_NTSCJP || req_mode == TV_NORM_PALM) {
priv->fps = NTSC_FPS;
}
priv->fps = supported_norms[norm_index].fps;
if(priv->height > priv->capability.maxheight) {
priv->height = priv->capability.maxheight;