class FFmpeg::Frame

• FFmpeg::Frame
• Reference
• Object

Defined in:

ffmpeg/frame.cr

Constructors

• .new(width : Int, height : Int, pixel_bytes : Int)

  DEPRECATED specify pixel format instead of byte size

• .new(width : Int, height : Int, pixel_format : LibAV::PixelFormat, align : Int = 1, buffer : Bytes | Nil = nil)
• .new(source : FFmpeg::Frame)
• .new(canvas : StumpyCore::Canvas)

  canvas helpers

• .new

Instance Method Summary

• #allocate_buffer(width : Int, height : Int, pixel_bytes : Int)

  DEPRECATED specify pixel format instead of byte size

• #allocate_buffer(width : Int, height : Int, pixel_format : LibAV::PixelFormat, align : Int = 1, buffer : Bytes | Nil = nil)
• #buffer : Bytes
• #convert_to(pixel_format : LibAV::PixelFormat) : FFmpeg::Frame

  helper for converting to another format NOTE:: when streaming video you'd want to cache this scaler.

• #copy_to(frame : FFmpeg::Frame)

  copies the image buffer to a new frame

• #crop(top : Int32, left : Int32, bottom : Int32, right : Int32) : FFmpeg::Frame

  crop helper - values are pixel distances from the edges NOTE:: when streaming video you'd want to cache scalers.

• #finalize
• #height
• #key_frame? : Bool
• #pixel_format : PixelFormat
• #quick_crop(top : Int32, left : Int32, bottom : Int32, right : Int32) : FFmpeg::Frame

  crops the frame for use with scaler to combine cropping in a single operation

• #to_canvas : StumpyCore::Canvas

  a very simple way to get a stumpy canvas from a frame also very inefficient so I don't recommend using in production

• #to_unsafe : Pointer(FFmpeg::LibAV::Util::AVFrame)
• #unsafe_crop(top : Int32, left : Int32, bottom : Int32, right : Int32) : FFmpeg::Frame
• #width

Constructor Detail

Instance Method Detail