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J2ME 拍照API:getSnapshot参数设置大全

张姚石
2023-12-01

最近做摄像头相关软件,发现这个参数设置有门道,API链了无数回,终于找到了这段对截图参数的详细设置,大家可以参考下。

Describing the video or image encodings:

     video_encodings   = video_enc_param *( "&" video_param )
     video_enc_param   = "encoding=" video_enc
     video_enc         = "gray8" / "rgb888" / "bgr888" /
                         "rgb565" / "rgb555" / "yuv444" /
                         "yuv422" / "yuv420" / "jpeg" / "png" /
                         content_type
     video_param       = "width=" width /
                         "height=" height /
                         "fps=" fps /
                         "colors=" colors /
                         "progressive=" progressive /
                         "interlaced=" interlaced /
                         "type=" video_type
     width             = pos_integer
     height            = pos_integer
     fps               = pos_number
     quality           = pos_integer
     colors            = "p" colors_in_palette /
                       = "rgb" r_bits g_bits b_bits /
                       = "gray" gray_bits
     colors_in_palette = pos_integer
     r_bits            = pos_integer
     g_bits            = pos_integer
     b_bits            = pos_integer
     gray_bits         = pos_integer
     progressive       = boolean
     video_type        = jfif / exif / other_type
     other_type        = alphanumeric
     interlaced        = boolean
     pos_number        = 1*DIGIT [ "." 1*DIGIT ]
     boolean           = "true" / "false"
 
   and
     content type is given in the MIME syntax.
 
    Examples:

     encoding=gray8&width=160&height=120
     encoding=jpeg&quality=80&progressive=true&type=jfif
         (progressive JPEG with quality 80 in jfif format)
     encoding=jpeg&type=exif
         (JPEG in exif format)
     encoding=png&colors=rgb888
         (24 bits/pixel PNG)
     encoding=rgb888
         (raw 24-bit rgb image)
     encoding=rgb&colors=rgb888
         (raw 24-bit rgb image)


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