Add initial meson file but it's incomplete

Compilation fails and x265 subproject is not ported yet

meson.build

@@ -0,0 +1,113 @@
+project('bpg', 'c',
+  version: '0.9.8',
+  meson_version: '>=0.49.2',
+  default_options: [
+	'buildtype=release',
+	'b_ndebug=if-release',
+  ]
+)
+
+png_dep = dependency('libpng', required: true)
+jpeg_dep = dependency('libjpeg', required: true)
+sdl_dep = dependency('sdl', required: get_option('BPG_USE_BPGVIEW'), disabler: true)
+sdl_image_dep = dependency('SDL_image', required: get_option('BPG_USE_BPGVIEW'), disabler: true)
+
+public_incl = include_directories('.')
+
+add_project_arguments(
+  '-D_FILE_OFFSET_BITS=64',
+  '-D_LARGEFILE_SOURCE',
+  '-D_REENTRANT',
+  '-DCONFIG_BPG_VERSION="' + meson.project_version() + '"',
+
+  '-Wall',
+  '-MMD',
+  '-fno-asynchronous-unwind-tables',
+  '-fdata-sections',
+  '-ffunction-sections',
+  '-fno-math-errno',
+  '-fno-signed-zeros',
+  '-fno-tree-vectorize',
+  '-fomit-frame-pointer',
+  language: 'c',
+)
+
+if get_option('BPG_USE_JCTVC_HIGH_BIT_DEPTH')
+	add_project_arguments('-DRExt__HIGH_BIT_DEPTH_SUPPORT', language: 'c')
+endif
+
+bpg_lib = library(meson.project_name(),
+  'libavcodec/hevc_cabac.c',
+  'libavcodec/hevc_filter.c',
+  'libavcodec/hevc.c',
+  'libavcodec/hevcpred.c',
+  'libavcodec/hevc_refs.c',
+  'libavcodec/hevcdsp.c',
+  'libavcodec/hevc_mvs.c',
+  'libavcodec/hevc_ps.c',
+  'libavcodec/hevc_sei.c',
+  'libavcodec/utils.c',
+  'libavcodec/cabac.c',
+  'libavcodec/golomb.c',
+  'libavcodec/videodsp.c',
+
+  'libavutil/mem.c',
+  'libavutil/buffer.c',
+  'libavutil/log2_tab.c',
+  'libavutil/frame.c',
+  'libavutil/pixdesc.c',
+  'libavutil/md5.c',
+
+  'libbpg.c',
+
+  install: true,
+  c_args: [
+	'-D_ISOC99_SOURCE',
+	'-D_POSIX_C_SOURCE=200112',
+	'-D_XOPEN_SOURCE=600',
+	'-DHAVE_AV_CONFIG_H',
+	'-D_GNU_SOURCE=1',
+	'-DUSE_VAR_BIT_DEPTH',
+	'-DUSE_PRED',
+  ],
+)
+
+bpg_dep = declare_dependency(
+  link_with: bpg_lib,
+  include_directories: public_incl,
+)
+
+if not get_option('BPG_USE_BPGVIEW').disabled()
+  executable('bpgview',
+	'bpgview.c',
+	install: true,
+	dependencies: [
+	  bpg_dep,
+	  sdl_dep,
+	  sdl_image_dep
+	]
+  )
+endif
+
+bpgenc_sources = ['bpgenc.c']
+bpgenc_deps = [bpg_dep, png_dep, jpeg_dep]
+bpgenc_args = []
+if get_option('BPG_USE_X265')
+  bpgenc_sources += ['x265_glue.c']
+  subdir('x265/source')
+  bpgenc_deps += [x265_static_dep]
+  bpgenc_args += ['-DUSE_X265']
+endif
+
+executable('bpgdec',
+  'bpgdec.c',
+  install: true,
+  dependencies: [bpg_dep, png_dep],
+)
+
+executable('bpgenc',
+  bpgenc_sources,
+  install: true,
+  dependencies: bpgenc_deps,
+  c_args: bpgenc_args,
+)

meson_options.txt

@@ -0,0 +1,29 @@
+option('BPG_USE_EMCC',
+  type: 'boolean',
+  value: false,
+  description: 'Enable compilation of Javascript decoder with Emscripten'
+)
+
+option('BPG_USE_X265',
+  type: 'boolean',
+  value: true,
+  description: 'Enable x265 for the encoder'
+)
+
+option('BPG_USE_JCTVC',
+  type: 'boolean',
+  value: false,
+  description: 'Enable the JCTVC code (best quality but slow) for the encoder'
+)
+
+option('BPG_USE_BPGVIEW',
+  type: 'feature',
+  value: 'auto',
+  description: 'Compile bpgview (SDL and SDL_image libraries needed)'
+)
+
+option('BPG_USE_JCTVC_HIGH_BIT_DEPTH',
+  type: 'boolean',
+  value: false,
+  description: 'Enable it to use bit depths > 12 (need more tests to validate encoder)'
+)