注意：我猜我没有在 makefile 中设置某些内容，或者我使用的是他们之前要求安装的工作 SDL-devel 和 SDL_image-devel 包。实际上，我正在从存储库安装“libsdl2-image-2.0-0”和“libsdl2-image-dev”...但是，自述文件说这些仅适用于 BPGviewer：
(# Compile bpgview (SDL and SDL_image libraries needed) #USE_BPGVIEW=y)
OBS.1：我刚刚发现这个：https://unix.stackexchange.com/questions/181735/how-to-install-bpg-better-portable-graphics-on-linux-mint-17
libbpg 依赖于 PNG 库的 1.6 版本，您无法在 Linux Mint 17 上使用 apt-get 安装该库。该库与 libpng12 不兼容，需要从源代码安装（我使用的是 1.6.16 版本）
好吧，无论如何，我正在尝试按照自述文件编译 libbpg-0.9.7：
2) Compilation and Installation Notes
-------------------------------------
2.1) Linux
----------
- Edit the Makefile to change the compile options (the default
compile options should be OK). Type 'make' to compile and 'make
install' to install the compiled binaries.
- Use 'make -j N' where N is the number of CPU cores to compile faster.
- The following packages must be installed: SDL-devel
SDL_image-devel yasm. It is recommended to use yasm version >= 1.3.0
to have a faster compilation.
所以：
sudo apt-get install --force-yes -y libsdl2-image-2.0-0 libsdl2-image-dev yasm
sudo apt-get install -y emscripten
进而：
wget http://bellard.org/bpg/libbpg-0.9.7.tar.gz
tar xzf libbpg-0.9.7.tar.gz
cd libbpg-0.9.7/
make
但是，它不起作用：
$: make -j 6 install
gcc -Os -Wall -MMD -fno-asynchronous-unwind-tables -fdata-sections -ffunction-sections -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -fomit-frame-pointer -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_REENTRANT -I. -DCONFIG_BPG_VERSION=\"0.9.7\" -g -DUSE_X265 -Wno-unused-but-set-variable -c -o bpgenc.o bpgenc.c
make -C x265.out/12bit
make[1]: Entering directory `/home/rgr/src/bpg/libbpg-0.9.7/x265.out/12bit'
make[1]: *** No targets specified and no makefile found. Stop.
ar rcs libbpg.a libavcodec/hevc_cabac.o libavcodec/hevc_filter.o libavcodec/hevc.o libavcodec/hevcpred.o libavcodec/hevc_refs.o libavcodec/hevcdsp.o libavcodec/hevc_mvs.o libavcodec/hevc_ps.o libavcodec/hevc_sei.o libavcodec/utils.o libavcodec/cabac.o libavcodec/golomb.o libavcodec/videodsp.o libavutil/mem.o libavutil/buffer.o libavutil/log2_tab.o libavutil/frame.o libavutil/pixdesc.o libavutil/md5.o libbpg.o
make[1]: Leaving directory `/home/rgr/src/bpg/libbpg-0.9.7/x265.out/12bit'
make: *** [x265_make] Error 2
make: *** Waiting for unfinished jobs....
bpgenc.c: In function ‘read_png’:
bpgenc.c:987:9: warning: implicit declaration of function ‘png_set_alpha_mode’ [-Wimplicit-function-declaration]
png_set_alpha_mode(png_ptr, PNG_ALPHA_ASSOCIATED, PNG_GAMMA_LINEAR);
^
bpgenc.c:987:37: error: ‘PNG_ALPHA_ASSOCIATED’ undeclared (first use in this function)
png_set_alpha_mode(png_ptr, PNG_ALPHA_ASSOCIATED, PNG_GAMMA_LINEAR);
^
bpgenc.c:987:37: note: each undeclared identifier is reported only once for each function it appears in
bpgenc.c:987:59: error: ‘PNG_GAMMA_LINEAR’ undeclared (first use in this function)
png_set_alpha_mode(png_ptr, PNG_ALPHA_ASSOCIATED, PNG_GAMMA_LINEAR);
^
bpgenc.c:1072:26: warning: passing argument 5 of ‘png_get_iCCP’ from incompatible pointer type [enabled by default]
&name, &comp_type, &iccp_buf, &iccp_buf_len) ==
^
In file included from /usr/include/png.h:540:0,
from bpgenc.c:32:
/usr/include/png.h:2490:8: note: expected ‘png_charpp’ but argument is of type ‘png_byte **’
extern PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr,
^
make: *** [bpgenc.o] Error 1
make文件的内容为：
# libbpg Makefile
#
# Compile options:
#
# Enable compilation of Javascript decoder with Emscripten
#USE_EMCC=y
# Enable x265 for the encoder
USE_X265=y
# Enable the JCTVC code (best quality but slow) for the encoder
#USE_JCTVC=y
# Compile bpgview (SDL and SDL_image libraries needed)
#USE_BPGVIEW=y
# Enable it to use bit depths > 12 (need more tests to validate encoder)
#USE_JCTVC_HIGH_BIT_DEPTH=y
# Enable the cross compilation for Windows
#CONFIG_WIN32=y
# Enable for compilation on MacOS X
#CONFIG_APPLE=y
# Installation prefix
prefix=/usr/local
#################################
ifdef CONFIG_WIN32
CROSS_PREFIX:=x86_64-w64-mingw32-
#CROSS_PREFIX=i686-w64-mingw32-
EXE:=.exe
else
CROSS_PREFIX:=
EXE:=
endif
CC=$(CROSS_PREFIX)gcc
CXX=$(CROSS_PREFIX)g++
AR=$(CROSS_PREFIX)ar
EMCC=emcc
PWD:=$(shell pwd)
CFLAGS:=-Os -Wall -MMD -fno-asynchronous-unwind-tables -fdata-sections -ffunction-sections -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -fomit-frame-pointer
CFLAGS+=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_REENTRANT
CFLAGS+=-I.
CFLAGS+=-DCONFIG_BPG_VERSION=\"$(shell cat VERSION)\"
ifdef USE_JCTVC_HIGH_BIT_DEPTH
CFLAGS+=-DRExt__HIGH_BIT_DEPTH_SUPPORT
endif
# Emscriptem config
EMLDFLAGS:=-s "EXPORTED_FUNCTIONS=['_bpg_decoder_open','_bpg_decoder_decode','_bpg_decoder_get_info','_bpg_decoder_start','_bpg_decoder_get_frame_duration','_bpg_decoder_get_line','_bpg_decoder_close','_malloc','_free']"
EMLDFLAGS+=-s NO_FILESYSTEM=1 -s NO_BROWSER=1
#EMLDFLAGS+=-O1 --pre-js pre.js --post-js post.js
# Note: the closure compiler is disabled because it adds unwanted global symbols
EMLDFLAGS+=-O3 --memory-init-file 0 --closure 0 --pre-js pre.js --post-js post.js
EMCFLAGS:=$(CFLAGS)
LDFLAGS=-g
ifdef CONFIG_APPLE
LDFLAGS+=-Wl,-dead_strip
else
LDFLAGS+=-Wl,--gc-sections
endif
CFLAGS+=-g
CXXFLAGS=$(CFLAGS)
PROGS=bpgdec$(EXE) bpgenc$(EXE)
ifdef USE_BPGVIEW
PROGS+=bpgview$(EXE)
endif
ifdef USE_EMCC
PROGS+=bpgdec.js bpgdec8.js bpgdec8a.js
endif
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 golomb.o videodsp.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, $(LIBBPG_OBJS)) tmalloc.js.o
LIBBPG_JS8_OBJS:=$(patsubst %.o, %.js8.o, $(LIBBPG_OBJS)) tmalloc.js8.o
LIBBPG_JS8A_OBJS:=$(patsubst %.o, %.js8a.o, $(LIBBPG_OBJS)) tmalloc.js8a.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 -DUSE_PRED
$(LIBBPG_JS_OBJS): EMCFLAGS+=-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
$(LIBBPG_JS8_OBJS): EMCFLAGS+=-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DHAVE_AV_CONFIG_H -std=c99 -D_GNU_SOURCE=1
$(LIBBPG_JS8A_OBJS): EMCFLAGS+=-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DHAVE_AV_CONFIG_H -std=c99 -D_GNU_SOURCE=1 -DUSE_PRED
BPGENC_OBJS:=bpgenc.o
BPGENC_LIBS:=
ifdef USE_X265
X265_LIBS:=./x265.out/8bit/libx265.a ./x265.out/10bit/libx265.a ./x265.out/12bit/libx265.a
BPGENC_OBJS+=x265_glue.o $(X265_LIBS)
bpgenc.o: CFLAGS+=-DUSE_X265
x265_glue.o: CFLAGS+=-I./x265/source -I./x265.out/8bit
x265_glue.o: $(X265_LIBS)
ifdef CONFIG_WIN32
CMAKE_OPTS:=-DCMAKE_TOOLCHAIN_FILE=../../x265/build/msys/toolchain-x86_64-w64-mingw32.cmake
else
CMAKE_OPTS:=
endif
x265.out:
mkdir -p x265.out/8bit x265.out/10bit x265.out/12bit
cd x265.out/12bit && cmake ../../x265/source $(CMAKE_OPTS) -DHIGH_BIT_DEPTH=ON -DEXPORT_C_API=OFF -DENABLE_SHARED=OFF -DENABLE_CLI=OFF -DMAIN12=ON
cd x265.out/10bit && cmake ../../x265/source $(CMAKE_OPTS) -DHIGH_BIT_DEPTH=ON -DEXPORT_C_API=OFF -DENABLE_SHARED=OFF -DENABLE_CLI=OFF -DMAIN10=ON
cd x265.out/8bit && cmake ../../x265/source $(CMAKE_OPTS) -DLINKED_10BIT=ON -DLINKED_12BIT=ON -DENABLE_SHARED=OFF -DENABLE_CLI=OFF
# use this target to manually rebuild x265
x265_make: | x265.out
$(MAKE) -C x265.out/12bit
$(MAKE) -C x265.out/10bit
$(MAKE) -C x265.out/8bit
x265_clean:
rm -rf x265.out
$(X265_LIBS): x265_make
else
x265_clean:
endif # USE_X265
ifdef USE_JCTVC
JCTVC_OBJS=$(addprefix jctvc/TLibEncoder/, SyntaxElementWriter.o TEncSbac.o \
TEncBinCoderCABACCounter.o TEncGOP.o\
TEncSampleAdaptiveOffset.o TEncBinCoderCABAC.o TEncAnalyze.o\
TEncEntropy.o TEncTop.o SEIwrite.o TEncPic.o TEncRateCtrl.o\
WeightPredAnalysis.o TEncSlice.o TEncCu.o NALwrite.o TEncCavlc.o\
TEncSearch.o TEncPreanalyzer.o)
JCTVC_OBJS+=jctvc/TLibVideoIO/TVideoIOYuv.o
JCTVC_OBJS+=$(addprefix jctvc/TLibCommon/, TComWeightPrediction.o TComLoopFilter.o\
TComBitStream.o TComMotionInfo.o TComSlice.o ContextModel3DBuffer.o\
TComPic.o TComRdCostWeightPrediction.o TComTU.o TComPicSym.o\
TComPicYuv.o TComYuv.o TComTrQuant.o TComInterpolationFilter.o\
ContextModel.o TComSampleAdaptiveOffset.o SEI.o TComPrediction.o\
TComDataCU.o TComChromaFormat.o Debug.o TComRom.o\
TComPicYuvMD5.o TComRdCost.o TComPattern.o TComCABACTables.o)
JCTVC_OBJS+=jctvc/libmd5/libmd5.o
JCTVC_OBJS+=jctvc/TAppEncCfg.o jctvc/TAppEncTop.o jctvc/program_options_lite.o
$(JCTVC_OBJS) jctvc_glue.o: CFLAGS+=-I$(PWD)/jctvc -Wno-sign-compare
jctvc/libjctvc.a: $(JCTVC_OBJS)
$(AR) rcs $@ $^
BPGENC_OBJS+=jctvc_glue.o jctvc/libjctvc.a
bpgenc.o: CFLAGS+=-DUSE_JCTVC
endif # USE_JCTVC
ifdef CONFIG_WIN32
BPGDEC_LIBS:=-lpng -lz
BPGENC_LIBS+=-lpng -ljpeg -lz
BPGVIEW_LIBS:=-lmingw32 -lSDLmain -lSDL_image -lSDL -mwindows
else
ifdef CONFIG_APPLE
LIBS:=
else
LIBS:=-lrt
endif # !CONFIG_APPLE
LIBS+=-lm -lpthread
BPGDEC_LIBS:=-lpng $(LIBS)
BPGENC_LIBS+=-lpng -ljpeg $(LIBS)
BPGVIEW_LIBS:=-lSDL_image -lSDL $(LIBS)
endif #!CONFIG_WIN32
bpgenc.o: CFLAGS+=-Wno-unused-but-set-variable
libbpg.a: $(LIBBPG_OBJS)
$(AR) rcs $@ $^
bpgdec$(EXE): bpgdec.o libbpg.a
$(CC) $(LDFLAGS) -o $@ $^ $(BPGDEC_LIBS)
bpgenc$(EXE): $(BPGENC_OBJS)
$(CXX) $(LDFLAGS) -o $@ $^ $(BPGENC_LIBS)
bpgview$(EXE): bpgview.o libbpg.a
$(CC) $(LDFLAGS) -o $@ $^ $(BPGVIEW_LIBS)
bpgdec.js: $(LIBBPG_JS_OBJS) post.js
$(EMCC) $(EMLDFLAGS) -s TOTAL_MEMORY=33554432 -o $@ $(LIBBPG_JS_OBJS)
bpgdec8.js: $(LIBBPG_JS8_OBJS) post.js
$(EMCC) $(EMLDFLAGS) -s TOTAL_MEMORY=33554432 -o $@ $(LIBBPG_JS8_OBJS)
bpgdec8a.js: $(LIBBPG_JS8A_OBJS) post.js
$(EMCC) $(EMLDFLAGS) -s TOTAL_MEMORY=33554432 -o $@ $(LIBBPG_JS8A_OBJS)
size:
strip bpgdec
size bpgdec libbpg.o libavcodec/*.o libavutil/*.o | sort -n
gzip < bpgdec | wc
install: bpgenc bpgdec
install -s -m 755 $^ $(prefix)/bin
CLEAN_DIRS=doc html libavcodec libavutil \
jctvc jctvc/TLibEncoder jctvc/TLibVideoIO jctvc/TLibCommon jctvc/libmd5
clean: x265_clean
rm -f $(PROGS) *.o *.a *.d *~ $(addsuffix /*.o, $(CLEAN_DIRS)) \
$(addsuffix /*.d, $(CLEAN_DIRS)) $(addsuffix /*~, $(CLEAN_DIRS)) \
$(addsuffix /*.a, $(CLEAN_DIRS))
%.o: %.c
$(CC) $(CFLAGS) -c -o $@ $<
%.o: %.cpp
$(CXX) $(CXXFLAGS) -c -o $@ $<
%.js.o: %.c
$(EMCC) $(EMCFLAGS) -c -o $@ $<
%.js8.o: %.c
$(EMCC) $(EMCFLAGS) -c -o $@ $<
%.js8a.o: %.c
$(EMCC) $(EMCFLAGS) -c -o $@ $<
-include $(wildcard *.d)
-include $(wildcard libavcodec/*.d)
-include $(wildcard libavutil/*.d)
-include $(wildcard jctvc/*.d)
-include $(wildcard jctvc/TLibEncoder/*.d)
-include $(wildcard jctvc/TLibVideoIO/*.d)
-include $(wildcard jctvc/TLibCommon/*.d)
-include $(wildcard jctvc/libmd5/*.d)
有什么猜测吗？谢谢。
答案1
这是我为了完成这件事所做的事情：
从 Ubuntu： https://askubuntu.com/questions/615108/issues-finding-the-location-of-package-libsdl2-image-2-0-0 https://unix.stackexchange.com/questions/181735/how-to-install-bpg-better-portable-graphics-on-linux-mint-17
LIBPNG libbpg 依赖于 PNG 库的 1.6 版本，您无法使用 apt-get 安装该版本。此库与 libpng12 不兼容，需要从源代码安装（我使用的是 1.6.16 版本）。最好不要更改官方安装的软件包 libpng12-dev，而是在 libbpg 的 Makefile 中指示在哪里可以找到 libpng 1.6。
sudo apt-get install -y libsdl-image1.2-dev libsdl1.2-dev libjpeg8-dev emscripten
sudo apt-get install --force-yes -y yasm
下载、配置、制作并安装 PNG 1.6
wget -O libpng-1.6.28.tar.xz "https://downloads.sourceforge.net/project/libpng/libpng16/1.6.28/libpng-1.6.28.tar.gz?ts=$(date +%s)"
tar xf libpng-1.6.28.tar.xz
./configure --help
./configure
make -j
sudo make install
sudo checkinstall
sudo ldconfig /usr/local/lib
Done. The new package has been installed and saved to
/home/rgr/src/libpng/libpng-1.6.28/libpng_1.6.28-1_amd64.deb
You can remove it from your system anytime using:
dpkg-r libpng
下载、制作并安装 BPG
mkdir bpg
cd bpg
wget http://bellard.org/bpg/libbpg-0.9.5.tar.gz
tar xzf libbpg-0.9.5.tar.gz
cd libbpg-0.9.5/
编辑 Makefile 并插入以下两个指令：
sudo nano Makefile
"CFLAGS+=-I/usr/local/include" after the line "CFLAGS+=-I"
"LDFLAGS+=-L /usr/local/lib" before the line "CFLAGS+=-g"
然后： make -j 6 sudo make install sudo checkinstall sudo ldconfig /usr/local/lib
Done. The new package has been installed and saved to
/home/rgr/src/bpg/libbpg-0.9.5/libbpg_0.9.5-1_amd64.deb
You can remove it from your system anytime using: