avcodec/libwebpenc: Deduplicate options, AVClass, pix_fmts

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/libavcodec/libwebpenc_common.c b/libavcodec/libwebpenc_common.c
index 3c4c3e2294..6a5fa70dcd 100644
--- a/libavcodec/libwebpenc_common.c
+++ b/libavcodec/libwebpenc_common.c
@@ -24,8 +24,46 @@
  * WebP encoder using libwebp: common structs and methods.
  */
 
+#include "libavutil/opt.h"
 #include "libwebpenc_common.h"
 
+const AVCodecDefault ff_libwebp_defaults[] = {
+    { "compression_level",  "4"  },
+    { "global_quality",     "-1" },
+    { NULL },
+};
+
+#define OFFSET(x) offsetof(LibWebPContextCommon, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+    { "lossless",   "Use lossless mode",       OFFSET(lossless), AV_OPT_TYPE_INT,   { .i64 =  0 },  0, 1,                           VE           },
+    { "preset",     "Configuration preset",    OFFSET(preset),   AV_OPT_TYPE_INT,   { .i64 = -1 }, -1, WEBP_PRESET_TEXT,            VE, "preset" },
+    { "none",       "do not use a preset",                              0, AV_OPT_TYPE_CONST, { .i64 = -1                  }, 0, 0, VE, "preset" },
+    { "default",    "default preset",                                   0, AV_OPT_TYPE_CONST, { .i64 = WEBP_PRESET_DEFAULT }, 0, 0, VE, "preset" },
+    { "picture",    "digital picture, like portrait, inner shot",       0, AV_OPT_TYPE_CONST, { .i64 = WEBP_PRESET_PICTURE }, 0, 0, VE, "preset" },
+    { "photo",      "outdoor photograph, with natural lighting",        0, AV_OPT_TYPE_CONST, { .i64 = WEBP_PRESET_PHOTO   }, 0, 0, VE, "preset" },
+    { "drawing",    "hand or line drawing, with high-contrast details", 0, AV_OPT_TYPE_CONST, { .i64 = WEBP_PRESET_DRAWING }, 0, 0, VE, "preset" },
+    { "icon",       "small-sized colorful images",                      0, AV_OPT_TYPE_CONST, { .i64 = WEBP_PRESET_ICON    }, 0, 0, VE, "preset" },
+    { "text",       "text-like",                                        0, AV_OPT_TYPE_CONST, { .i64 = WEBP_PRESET_TEXT    }, 0, 0, VE, "preset" },
+    { "cr_threshold","Conditional replenishment threshold",     OFFSET(cr_threshold), AV_OPT_TYPE_INT, { .i64 =  0  },  0, INT_MAX, VE           },
+    { "cr_size"     ,"Conditional replenishment block size",    OFFSET(cr_size)     , AV_OPT_TYPE_INT, { .i64 =  16 },  0, 256,     VE           },
+    { "quality"     ,"Quality",                OFFSET(quality),  AV_OPT_TYPE_FLOAT, { .dbl =  75 }, 0, 100,                         VE           },
+    { NULL },
+};
+
+const AVClass ff_libwebpenc_class = {
+    .class_name = "libwebp encoder",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+const enum AVPixelFormat ff_libwebpenc_pix_fmts[] = {
+    AV_PIX_FMT_RGB32,
+    AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P,
+    AV_PIX_FMT_NONE
+};
+
 int ff_libwebp_error_to_averror(int err)
 {
     switch (err) {