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add -version option to anim_dump,anim_diff and img2webp

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This is to harmonize the -h/-version options on all our examples.

+ added GetAnimatedImageVersions() method to anim_util.*

Change-Id: I2304a1c29e310682e97f236d3867274a192a7a09
This commit is contained in:
Pascal Massimino
2018-04-03 14:50:58 +02:00
committed by James Zern
parent fc1b8e3a8b
commit 64a57d0587
7 changed files with 60 additions and 6 deletions
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25
examples/anim_diff.c
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@ -190,6 +190,8 @@ static void Help(void) {
printf(" -max_diff <int> ..... maximum allowed difference per channel\n"
" between corresponding pixels in subsequent\n"
" frames\n");
printf(" -h .................. this help\n");
printf(" -version ............ print version number and exit\n");
}
int main(int argc, const char* argv[]) {
@ -205,11 +207,6 @@ int main(int argc, const char* argv[]) {
const char* files[2] = { NULL, NULL };
AnimatedImage images[2];
if (argc < 3) {
Help();
return -1;
}
for (c = 1; c < argc; ++c) {
int parse_error = 0;
if (!strcmp(argv[c], "-dump_frames")) {
@ -247,6 +244,18 @@ int main(int argc, const char* argv[]) {
} else {
parse_error = 1;
}
} else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
Help();
return 0;
} else if (!strcmp(argv[c], "-version")) {
int dec_version, demux_version;
GetAnimatedImageVersions(&dec_version, &demux_version);
printf("WebP Decoder version: %d.%d.%d\nWebP Demux version: %d.%d.%d\n",
(dec_version >> 16) & 0xff, (dec_version >> 8) & 0xff,
(dec_version >> 0) & 0xff,
(demux_version >> 16) & 0xff, (demux_version >> 8) & 0xff,
(demux_version >> 0) & 0xff);
return 0;
} else {
if (!got_input1) {
files[0] = argv[c];
@ -263,6 +272,12 @@ int main(int argc, const char* argv[]) {
return -1;
}
}
if (argc < 3) {
Help();
return -1;
}
if (!got_input2) {
Help();
return -1;