{"categories":[],"blog_title":"\u30e1\u30e2\u7528\u7d19","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fscientre.hateblo.jp%2Fentry%2F2019%2F04%2F14%2Fmakefile-for-ffmpeg\" title=\"\u8907\u6570\u306e wave \u30d5\u30a1\u30a4\u30eb\u3092 MP3/AAC \u306b\u5909\u63db\u3059\u308b Makefile - \u30e1\u30e2\u7528\u7d19\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"FFmpeg \u3092\u4f7f\u3063\u3066 wav \u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u3042\u308b wave \u30d5\u30a1\u30a4\u30eb\u3092\u4e00\u62ec\u3067 MP3 \u306b\u5909\u63db\u3059\u308b\u305f\u3081\u3001\u6b21\u306e\u3088\u3046\u306a Makefile \u3092\u66f8\u3044\u305f\u3002 CONV = ffmpeg OPTS = -filter:a loudnorm -ab 64k SRCDIR = wav DESTDIR = mp3 SOURCES = $(wildcard $(SRCDIR)/*.wav) TARGETS = $(addprefix $(DESTDIR)/, $(notdir $(SOURCES:.wav=.mp3))) $(DESTDIR)/%.mp3: $(SRCDIR)/%.wav -mkdir -p $(D\u2026","provider_url":"https://hatena.blog","author_name":"scientre","width":"100%","height":"190","author_url":"https://blog.hatena.ne.jp/scientre/","title":"\u8907\u6570\u306e wave \u30d5\u30a1\u30a4\u30eb\u3092 MP3/AAC \u306b\u5909\u63db\u3059\u308b Makefile","provider_name":"Hatena Blog","published":"2019-04-14 21:43:46","blog_url":"https://scientre.hateblo.jp/","image_url":null,"version":"1.0","url":"https://scientre.hateblo.jp/entry/2019/04/14/makefile-for-ffmpeg"}