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Banner vidcap: improved usage

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This commit is contained in:
Martin Pulec
2015-09-23 16:21:48 +02:00
parent 4069baafe0
commit 5f2ba0d8da
1 changed files with 17 additions and 7 deletions
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24
src/video_capture/banner.cpp
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@@ -75,6 +75,17 @@ struct banner_state {
struct video_frame *frame;
};
static void usage()
{
printf("Banner capture card scrolls predefined banner. Provided file should be "
"uncompressed and in specified color space.\n");
printf("Banner height is given by file size divided by line length in bytes.\n\n");
printf("banner options:\n");
printf("\t-t banner:<width>:<height>:<fps>:<codec>:filename=<filename>[:i|:sf]\n");
printf("\t<filename> - use file named filename\n");
printf("\ti|sf - send as interlaced or segmented frame (if none of those is set, progressive is assumed)\n");
}
static void *vidcap_banner_init(const struct vidcap_params *params)
{
struct banner_state *s;
@@ -83,13 +94,7 @@ static void *vidcap_banner_init(const struct vidcap_params *params)
char *save_ptr = NULL;
if (vidcap_params_get_fmt(params) == NULL || strcmp(vidcap_params_get_fmt(params), "help") == 0) {
printf("Banner capture card srolls predefined banner. Banner should be "
"uncompressed and in specified color space.\n");
printf("Banner height is given by file size divided by line length in bytes.\n\n");
printf("banner options:\n");
printf("\t-t banner:<width>:<height>:<fps>:<codec>:filename=<filename>[:i|:sf]\n");
printf("\t<filename> - use file named filename\n");
printf("\ti|sf - send as interlaced or segmented frame (if none of those is set, progressive is assumed)\n");
usage();
return &vidcap_init_noerr;
}
@@ -105,18 +110,21 @@ static void *vidcap_banner_init(const struct vidcap_params *params)
tmp = strtok_r(fmt, ":", &save_ptr);
if (!tmp) {
fprintf(stderr, "Wrong format for banner '%s'\n", fmt);
usage();
goto error;
}
vf_get_tile(s->frame, 0)->width = atoi(tmp);
tmp = strtok_r(NULL, ":", &save_ptr);
if (!tmp) {
fprintf(stderr, "Wrong format for banner '%s'\n", fmt);
usage();
goto error;
}
vf_get_tile(s->frame, 0)->height = atoi(tmp);
tmp = strtok_r(NULL, ":", &save_ptr);
if (!tmp) {
fprintf(stderr, "Wrong format for banner '%s'\n", fmt);
usage();
goto error;
}
@@ -125,6 +133,7 @@ static void *vidcap_banner_init(const struct vidcap_params *params)
tmp = strtok_r(NULL, ":", &save_ptr);
if (!tmp) {
fprintf(stderr, "Wrong format for banner '%s'\n", fmt);
usage();
goto error;
}
@@ -180,6 +189,7 @@ static void *vidcap_banner_init(const struct vidcap_params *params)
s->frame->interlacing = SEGMENTED_FRAME;
} else {
fprintf(stderr, "[banner] Unknown option: %s\n", tmp);
usage();
goto error;
}
tmp = strtok_r(NULL, ":", &save_ptr);