编译支持播放H265的cef控件-编程知识

编译支持播放H265的cef控件

接着在上次编译的基础上增加h265支持
编译支持视频播放的cef控件（h264）

测试页面，直接使用cef_enhancement,里边带着的那个html即可，h265视频去这个网站下载elecard,我修改的这个版本参考了里边的修改方式，不过我的这个版本改完之后，直接video.canPlayType()函数，返回的信息也是提示支持h265播放

CefClient支持播放

测试的edge浏览器不支持播放

需要修改的文件以及内容如下

media/media_options.gni

  enable_platform_hevc =proprietary_codecs && (is_chromecast || enable_hevc_parser_and_hw_decoder)enable_platform_hevc = trueenable_hevc_demuxing = true

media/base/supported_types.cc

    case VideoCodec::kHEVC:// return IsHevcProfileSupported(type);return true;

third_party/ffmpeg/ffmpeg_generated.gni

ffmpeg_c_sources += ["libavcodec/bswapdsp.c","libavcodec/libavcodec_hevcdec.c","libavcodec/dovi_rpu.c","libavcodec/dynamic_hdr_vivid.c","libavcodec/dynamic_hdr10_plus.c","libavcodec/hevc_cabac.c","libavcodec/hevc_data.c","libavcodec/hevc_filter.c","libavcodec/hevc_mvs.c","libavcodec/hevc_parse.c","libavcodec/hevc_parser.c","libavcodec/hevc_ps.c","libavcodec/hevc_refs.c","libavcodec/hevc_sei.c","libavcodec/hevcdsp.c","libavcodec/hevcpred.c","libavcodec/x86/bswapdsp_init.c","libavcodec/x86/hevcdsp_init.c","libavformat/libavformat_hevc.c","libavformat/hevcdec.c",]ffmpeg_asm_sources += ["libavcodec/x86/bswapdsp.asm","libavcodec/x86/hevc_deblock.asm","libavcodec/x86/hevc_idct.asm","libavcodec/x86/hevc_mc.asm","libavcodec/x86/hevc_add_res.asm","libavcodec/x86/hevc_sao.asm","libavcodec/x86/hevc_sao_10bit.asm",]

third_party\ffmpeg\chromium\config\Chrome\win\ia32\libavcodec\codec_list.c