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gif2webp: only write error messages to stderr

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also output something if -o is not given, but the process succeeded

Change-Id: I466c377f0cbf8c9f45bb1839191b04dada9c5f0f
This commit is contained in:
James Zern
2013-03-17 18:08:01 -07:00
parent 59423a2486
commit 723847d5d7
1 changed files with 15 additions and 9 deletions
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18
examples/gif2webp.c
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@@ -343,10 +343,10 @@ int main(int argc, const char *argv[]) {
goto End; goto End;
} }
if (verbose) { if (verbose) {
fprintf(stderr, "Added frame %dx%d (offset:%d,%d duration:%d) ", printf("Added frame %dx%d (offset:%d,%d duration:%d) ",
view.width, view.height, frame.x_offset, frame.y_offset, view.width, view.height, frame.x_offset, frame.y_offset,
frame.duration); frame.duration);
fprintf(stderr, "dispose:%d transparent index:%d\n", printf("dispose:%d transparent index:%d\n",
frame.dispose_method, transparent_index); frame.dispose_method, transparent_index);
} }
WebPDataClear(&frame.bitstream); WebPDataClear(&frame.bitstream);
@@ -392,7 +392,7 @@ int main(int argc, const char *argv[]) {
if (data == NULL) goto End; // Loop count sub-block missing. if (data == NULL) goto End; // Loop count sub-block missing.
if (data[0] != 3 && data[1] != 1) break; // wrong size/marker if (data[0] != 3 && data[1] != 1) break; // wrong size/marker
anim.loop_count = data[2] | (data[3] << 8); anim.loop_count = data[2] | (data[3] << 8);
if (verbose) fprintf(stderr, "Loop count: %d\n", anim.loop_count); if (verbose) printf("Loop count: %d\n", anim.loop_count);
} else if (!memcmp(data + 1, "XMP dataXMP", 11)) { } else if (!memcmp(data + 1, "XMP dataXMP", 11)) {
// Read XMP metadata. // Read XMP metadata.
WebPData xmp; WebPData xmp;
@@ -401,7 +401,7 @@ int main(int argc, const char *argv[]) {
xmp.bytes = (uint8_t*)data; xmp.bytes = (uint8_t*)data;
xmp.size = data[0] + 1; xmp.size = data[0] + 1;
WebPMuxSetChunk(mux, "XMP ", &xmp, 1); WebPMuxSetChunk(mux, "XMP ", &xmp, 1);
if (verbose) fprintf(stderr, "XMP size: %zu\n", xmp.size); if (verbose) printf("XMP size: %zu\n", xmp.size);
} else if (!memcmp(data + 1, "ICCRGBG1012", 11)) { } else if (!memcmp(data + 1, "ICCRGBG1012", 11)) {
// Read ICC profile. // Read ICC profile.
WebPData icc; WebPData icc;
@@ -410,7 +410,7 @@ int main(int argc, const char *argv[]) {
icc.bytes = (uint8_t*)data; icc.bytes = (uint8_t*)data;
icc.size = data[0] + 1; icc.size = data[0] + 1;
WebPMuxSetChunk(mux, "ICCP", &icc, 1); WebPMuxSetChunk(mux, "ICCP", &icc, 1);
if (verbose) fprintf(stderr, "ICC size: %zu\n", icc.size); if (verbose) printf("ICC size: %zu\n", icc.size);
} }
break; break;
} }
@@ -454,7 +454,13 @@ int main(int argc, const char *argv[]) {
fprintf(stderr, "Error writing output file: %s\n", out_file); fprintf(stderr, "Error writing output file: %s\n", out_file);
goto End; goto End;
} }
if (!quiet) fprintf(stderr, "Saved output file: %s\n", out_file); if (!quiet) {
printf("Saved output file: %s\n", out_file);
}
} else {
if (!quiet) {
printf("Nothing written; use -o flag to save the result.\n");
}
} }
// All OK. // All OK.