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normalize example exit status

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Use EXIT_SUCCESS / EXIT_FAILURE in most cases as more granularity isn't
useful. For anim_diff, use 0 (success), 1 (image difference) and 2
(error) to align it with other diff utilities (diff, etc.).

Bug: webp:637
Change-Id: I52925de8622a5a4d2141883279d69a1d95ef9b12
This commit is contained in:
James Zern
2024-04-30 18:18:23 -07:00
parent edc289092a
commit a67ff735a2
19 changed files with 139 additions and 72 deletions
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17
examples/dwebp.c
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@ -177,6 +177,7 @@ static uint8_t* AllocateExternalBuffer(WebPDecoderConfig* config,
return external_buffer;
}
// Returns EXIT_SUCCESS on success, EXIT_FAILURE on failure.
int main(int argc, const char* argv[]) {
int ok = 0;
const char* in_file = NULL;
@ -197,14 +198,14 @@ int main(int argc, const char* argv[]) {
if (!WebPInitDecoderConfig(&config)) {
fprintf(stderr, "Library version mismatch!\n");
FREE_WARGV_AND_RETURN(-1);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
}
for (c = 1; c < argc; ++c) {
int parse_error = 0;
if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
Help();
FREE_WARGV_AND_RETURN(0);
FREE_WARGV_AND_RETURN(EXIT_SUCCESS);
} else if (!strcmp(argv[c], "-o") && c < argc - 1) {
out_file = (const char*)GET_WARGV(argv, ++c);
} else if (!strcmp(argv[c], "-alpha")) {
@ -227,7 +228,7 @@ int main(int argc, const char* argv[]) {
const int version = WebPGetDecoderVersion();
printf("%d.%d.%d\n",
(version >> 16) & 0xff, (version >> 8) & 0xff, version & 0xff);
FREE_WARGV_AND_RETURN(0);
FREE_WARGV_AND_RETURN(EXIT_SUCCESS);
} else if (!strcmp(argv[c], "-pgm")) {
format = PGM;
} else if (!strcmp(argv[c], "-yuv")) {
@ -293,21 +294,21 @@ int main(int argc, const char* argv[]) {
} else if (argv[c][0] == '-') {
fprintf(stderr, "Unknown option '%s'\n", argv[c]);
Help();
FREE_WARGV_AND_RETURN(-1);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
} else {
in_file = (const char*)GET_WARGV(argv, c);
}
if (parse_error) {
Help();
FREE_WARGV_AND_RETURN(-1);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
}
}
if (in_file == NULL) {
fprintf(stderr, "missing input file!!\n");
Help();
FREE_WARGV_AND_RETURN(-1);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
}
if (quiet) verbose = 0;
@ -316,7 +317,7 @@ int main(int argc, const char* argv[]) {
VP8StatusCode status = VP8_STATUS_OK;
size_t data_size = 0;
if (!LoadWebP(in_file, &data, &data_size, bitstream)) {
FREE_WARGV_AND_RETURN(-1);
FREE_WARGV_AND_RETURN(EXIT_FAILURE);
}
switch (format) {
@ -415,7 +416,7 @@ int main(int argc, const char* argv[]) {
WebPFreeDecBuffer(output_buffer);
WebPFree((void*)external_buffer);
WebPFree((void*)data);
FREE_WARGV_AND_RETURN(ok ? 0 : -1);
FREE_WARGV_AND_RETURN(ok ? EXIT_SUCCESS : EXIT_FAILURE);
}
//------------------------------------------------------------------------------