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• avcodec/sanm : codec23 decoder

  11 mars, par Manuel Lauss

  avcodec/sanm: codec23 decoder
  
  This codec alternatingly skips and changes existing pixels.
  A second 16bit parameter in the FOBJ header indicates how to do
  the pixel changes: either by specifying a LUT in the codec datastream
  or by adding a constant value to the pixel.
  
  Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
  

  • [DH] libavcodec/sanm.c

• avcodec/sanm : codec2 decoder

  11 mars, par Manuel Lauss

  avcodec/sanm: codec2 decoder
  
  this codec consists of 4 byte packets: 2bytes delta-x, 1 byte delta-y
  and 1 byte color to put at that spot.
  Used in Rebel Assault 1 only.
  
  Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
  

  • [DH] libavcodec/sanm.c

• avcodec/sanm : better ANIMv1 engine support

  11 mars, par Manuel Lauss

  avcodec/sanm: better ANIMv1 engine support
  
  - clear the front buffer with color 0 on the first FOBJ.
    Fixes a lot of Rebel Assault 1 videos and Rebel Assault 2 space
    scenes (e.g. 08PLAY.SAN which consists only of codec1/2/21 objects
    which only ever touch parts of the buffer).
  - for ANIMv1 (Rebel Assault 1): set palette index 0 to all zeroes.
    This fixes a lot of stray colors in e.g L1HANGAR.ANM, L2INTRO.ANM,
    space scenes.
  - Esp in RA1, there are a lot of FRME objects which don't contain
    any video data (prebuffering some audio only). Account for that.
  - In RA1 L2PLAY.ANM there are a few unaligned FOBJs, handle this
    in a generic way.
  
  Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
  

  • [DH] libavcodec/sanm.c

• avcodec/ffv1enc : Factor set_micro_version() out of ff_ffv1_write_extradata()

  11 mars, par Michael Niedermayer

  avcodec/ffv1enc: Factor set_micro_version() out of ff_ffv1_write_extradata()
  
  and call it from ff_ffv1_encode_init()
  
  setting micro version from code writing the extradata is messy, this should
  be cleaner
  
  Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/ffv1enc.c

• avcodec/sanm : FOBJ left/top are signed values

  11 mars, par Manuel Lauss

  avcodec/sanm: FOBJ left/top are signed values
  
  The left/top parameters of a FOBJ are signed values.  Adjust
  codec1 code accordingly to not draw outside the buffer area.
  Rebel Assault 1 makes heavy use of this.
  
  Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
  

  • [DH] libavcodec/sanm.c