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img2webp: add -sharp_yuv/-near_lossless

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Both are global settings. Modifying them at the frame level is left as a
follow up based on need.

Bug: b/272739498
Change-Id: If15256c052f73fe3df56be5e0095e76d9870cc0f
This commit is contained in:
jzern@google.com
2023-03-15 18:50:37 -07:00
committed by James Zern
parent d64e6d7d9d
commit 0825faa4c1
5 changed files with 34 additions and 3 deletions
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2
examples/Makefile.am
View File

@ -92,7 +92,7 @@ webpmux_LDADD += ../src/mux/libwebpmux.la
webpmux_LDADD += ../src/libwebp.la
img2webp_SOURCES = img2webp.c
img2webp_CPPFLAGS = $(AM_CPPFLAGS)
img2webp_CPPFLAGS = $(AM_CPPFLAGS) -I$(top_srcdir)
img2webp_LDADD =
img2webp_LDADD += libexample_util.la
img2webp_LDADD += ../imageio/libimageio_util.la

14
examples/img2webp.c
View File

@ -28,6 +28,7 @@
#include "../imageio/imageio_util.h"
#include "./stopwatch.h"
#include "./unicode.h"
#include "sharpyuv/sharpyuv.h"
#include "webp/encode.h"
#include "webp/mux.h"
@ -46,6 +47,11 @@ static void Help(void) {
printf(" -kmin <int> .......... minimum number of frame between key-frames\n"
" (0=disable key-frames altogether)\n");
printf(" -mixed ............... use mixed lossy/lossless automatic mode\n");
printf(" -near_lossless <int> . use near-lossless image preprocessing\n"
" (0..100=off), default=100\n");
printf(" -sharp_yuv ........... use sharper (and slower) RGB->YUV "
"conversion\n "
"(lossy only)\n");
printf(" -v ................... verbose mode\n");
printf(" -h ................... this help\n");
printf(" -version ............. print version number and exit\n");
@ -184,6 +190,11 @@ int main(int argc, const char* argv[]) {
} else if (!strcmp(argv[c], "-mixed")) {
anim_config.allow_mixed = 1;
config.lossless = 0;
} else if (!strcmp(argv[c], "-near_lossless") && c + 1 < argc) {
argv[c] = NULL;
config.near_lossless = ExUtilGetInt(argv[++c], 0, &parse_error);
} else if (!strcmp(argv[c], "-sharp_yuv")) {
config.use_sharp_yuv = 1;
} else if (!strcmp(argv[c], "-v")) {
verbose = 1;
} else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
@ -192,10 +203,13 @@ int main(int argc, const char* argv[]) {
} else if (!strcmp(argv[c], "-version")) {
const int enc_version = WebPGetEncoderVersion();
const int mux_version = WebPGetMuxVersion();
const int sharpyuv_version = SharpYuvGetVersion();
printf("WebP Encoder version: %d.%d.%d\nWebP Mux version: %d.%d.%d\n",
(enc_version >> 16) & 0xff, (enc_version >> 8) & 0xff,
enc_version & 0xff, (mux_version >> 16) & 0xff,
(mux_version >> 8) & 0xff, mux_version & 0xff);
printf("libsharpyuv: %d.%d.%d\n", (sharpyuv_version >> 24) & 0xff,
(sharpyuv_version >> 16) & 0xffff, sharpyuv_version & 0xff);
goto End;
} else {
continue;