Pylibdv

= Welcome to pylibdv 0.0.1 =

Background
pylibdv is a project for one of my university courses; [http://www.uio.no/studier/emner/matnat/ifi/INF5660/index-eng.xml INF5660 - Advanced problem solving with high level languages].

pylibdv is a python wrapper for [http://libdv.sourceforge.net/ libdv].BR
From libdv home page: "libdv is a software codec for DV video, the encoding format used by most digital camcorders, typically those that support the IEEE 1394 Firewire or i.Link) interface. Libdv was developed according to the official standards for DV video: IEC 61834 and SMPTE 314M."

Progress
So far the following functions are available:BR
Object:BR
DecoderBR

Methods:BR
parse_header()BR
decode_full_frame()BR

Data:BR
Different quality settings for decoding:BR
DV_QUALITY_BESTBR
DV_QUALITY_FASTESTBR
DV_QUALITY_COLORBR
DV_QUALITY_DCBR
DV_QUALITY_AC_1BR
DV_QUALITY_AC_2BR
DV_QUALITY_AC_MASKBR

Available color spaces for output buffers:BR
e_dv_color_rgbBR
e_dv_color_yuvBR
e_dv_color_bgr0BR

This project is ongoing and most functions will be wrapped by the end of the summer (depending on need).

Simple example
import pylibdv

decoder = pylibdv.Decoder(ignored=1, clamp_luma=1, clamp_chroma=1)

file = open("somedvfile.dv,"r")
framebuffer = file.read(120000) # Just enough to make sure

decoder.parse_header(framebuffer)

1. Now we can get some information about the video
   frame_size = decoder.frame_size
   width = decoder.width
   height = decoder.height

file.seek(0) #Back to start
framebuffer = file.read(frame_size)
rgb_buffer = decoder.decode_full_frame(framebuffer)

Requirements
libdv 1.4BR
python >= 2.4 (testing.py won't work with 2.3, doctest will fail due to a bug in 2.3)BR

Enjoy! BR
[mailto:nielsr@ifi.uio.no Niels Petter Rasch-Olsen]