0.9.3

ChangeLog

@@ -1,3 +1,14 @@
+version 0.9.3:
+
+- Fixed small palette PNG.
+- Added support for BT 709 and BT 2020 YCbCr.
+- Added limited range color support.
+- Changed CMYK signalling.
+- Added premultiplied alpha support.
+- Specified the output RGB color space if no color profile is present.
+- Reduced the size of the js decoder.
+- Removed buffer overflows.
+
 version 0.9.2:
 
 - Fixed encoding of paletted PNG.

Makefile

@@ -70,13 +70,13 @@ all: $(PROGS)
 LIBBPG_OBJS:=$(addprefix libavcodec/, \
 hevc_cabac.o  hevc_filter.o  hevc.o         hevcpred.o  hevc_refs.o\
 hevcdsp.o     hevc_mvs.o     hevc_ps.o   hevc_sei.o\
-utils.o cabac.o )
+utils.o cabac.o golomb.o )
 LIBBPG_OBJS+=$(addprefix libavutil/, mem.o buffer.o log2_tab.o frame.o pixdesc.o md5.o )
 LIBBPG_OBJS+=libbpg.o
 
-LIBBPG_JS_OBJS:=$(patsubst %.o, %.js.o, $(LIBBPG_OBJS))
+LIBBPG_JS_OBJS:=$(patsubst %.o, %.js.o, $(LIBBPG_OBJS)) tmalloc.js.o
 
-LIBBPG_JS8_OBJS:=$(patsubst %.o, %.js8.o, $(LIBBPG_OBJS))
+LIBBPG_JS8_OBJS:=$(patsubst %.o, %.js8.o, $(LIBBPG_OBJS)) tmalloc.js8.o
 
 $(LIBBPG_OBJS): CFLAGS+=-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DHAVE_AV_CONFIG_H -std=c99 -D_GNU_SOURCE=1 -DUSE_VAR_BIT_DEPTH
 

README

@@ -81,6 +81,12 @@ as input.
 
     * grayscale images are kept unmodified.
 
+- Premultiplied alpha: by default bpgenc uses non-premultiplied alpha
+  to preserve the color components. However, premultiplied alpha
+  ('-premul' option) usually gives a better compression at the expense
+  of a loss in the color components. This loss is not an issue if the
+  image is not edited.
+
 - By default, bpgenc does not copy the metadata. You can copy them
   with the '-keepmetadata' option. For JPEG input, EXIF, ICCP and XMP
   are copied. For PNG input, ICCP is copied.

VERSION

@@ -1 +1 @@
-0.9.2
+0.9.3

bpgdec.c

@@ -184,8 +184,8 @@ static void bpg_show_info(const char *filename, int show_extensions)
         "YCbCr",
         "RGB",
         "YCgCo",
-        "YCbCrK",
-        "CMYK",
+        "YCbCr_BT709",
+        "YCbCr_BT2020",
     };
     static const char *extension_tag_str[] = {
         "Unknown",
@@ -220,12 +220,21 @@ static void bpg_show_info(const char *filename, int show_extensions)
         fprintf(stderr, "Not a BPG image\n");
         exit(1);
     }
-    printf("size=%dx%d color_space=%s alpha=%d format=%s bit_depth=%d\n", 
+    printf("size=%dx%d color_space=%s",
            p->width, p->height,
-           p->format == BPG_FORMAT_GRAY ? "Gray" : color_space_str[p->color_space], 
-           p->has_alpha,
+           p->format == BPG_FORMAT_GRAY ? "Gray" : color_space_str[p->color_space]);
+    if (p->has_w_plane) {
+        printf(" w_plane=%d", p->has_w_plane);
+    }
+    if (p->has_alpha) {
+        printf(" alpha=%d premul=%d", 
+               p->has_alpha, p->premultiplied_alpha);
+    }
+    printf(" format=%s limited_range=%d bit_depth=%d\n",
            format_str[p->format],
+           p->limited_range,
            p->bit_depth);
+
     if (first_md) {
         const char *tag_name;
         printf("Extension data:\n");