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• Does there exist fonts that supprot all languages in the FFmpeg ?

  20 novembre 2024, par phil lx

  I encountered an issue while using FFmpeg to composite a video. After analyzing the user's request, I discovered that the subtitles included Korean text, which caused the process to hang. To address this, I downloaded a Korean font and placed it in the server's fonts directory. This resolved the problem temporarily.

  


  However, this solution is not comprehensive. Another user later requested a video that included traditional Chinese characters, which caused the process to hang again.

  


  成吉思汗，传统蒙古文写作ᠴᠢᠩᠭᠢᠰ ᠬᠠᠭᠠᠨ，拉丁蒙古文写作Činggis Qaγan，西里尔蒙古文写作Чингис Хаан，他是蒙古族乞颜部人

  


  I would like to know if there is a universal font style that supports all languages to prevent such issues in the future.

  


  For reference, I currently use the Alibaba PuHuiTi font, which I downloaded from this link : https://www.zitijia.com/downloadpage?itemid=250417369808129081.

  


  Here is the relevant portion of my code :

  


  filters1 = []
    filters1.append(f"[0:v]crop={int(0.8*width)}:{int(0.8*height)}:{int(0.1*width)}:0,scale={width}:{height}[vout]")
    if add_sub == 1:
        filters1.append(f"[vout]subtitles={srt_path}:force_style='Fontname=Alibaba PuHuiTi,Fontsize={font_size},PrimaryColour={font_color},OutlineColour={font_border_color},MarginV={font_position*(288-font_size)}'[vout]")

    filter_complex1 = ';'.join(filters1)

    command = [
        'ffmpeg',
        '-y',  # 覆盖输出文件
        '-threads', '12',
        # '-loglevel', 'error',
        
        # 第一个输入
        '-f', 'rawvideo',  # 输入为原始视频数据
        '-vcodec', 'rawvideo',
        '-s', f'{width}x{height}',  # 图像尺寸
        '-pix_fmt', 'rgb24',  # 输入像素格式
        '-r', '30',  # 帧率
        '-i', '-',  # 输入从stdin

        # 复杂过滤器
        '-filter_complex', filter_complex1,

        # 映射输出流
        '-map', '[vout]',  # 使用裁剪后的视频
        # '-map', '[audio_out]',  # 使用混合后的音频

        # 输出选项
        '-vcodec', 'h264_nvenc',  # 输出视频编码
        '-pix_fmt', 'yuv420p',  # 输出像素格式
        # '-acodec', 'aac',  # 输出音频编码
        '-strict', 'experimental',  # 兼容性模式

        # 输出文件
        video_withoutspeed_path
    ]


  


  As shown above. hey-hey-hey

  


• avfilter/showinfo : support Content Light Level information

  9 août 2019, par Limin Wang

  avfilter/showinfo : support Content Light Level information
  show real information instead of the unknown side data type message for HDR10 stream
  Signed-off-by : Limin Wang <lance.lmwang@gmail.com>
  
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavfilter/vf_showinfo.c

• avformat/dump : Use intermediate pointer for access to programs array

  30 juin 2020, par Andreas Rheinhardt

  avformat/dump : Use intermediate pointer for access to programs array
  Improves readability.
  Reviewed-by : Limin Wang <lance.lmwang@gmail.com>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavformat/dump.c