swscale: support internal scaler cascades

Multimedia / FFmpeg - Michael Niedermayer [gmx.at] - 10 October 2014 22:05 EDT

Fixes Ticket3170

fba8946 swscale: support internal scaler cascades
libswscale/swscale.c | 13 ++++++++++
libswscale/swscale_internal.h | 10 ++++++++
libswscale/utils.c | 54 ++++++++++++++++++++++++++++++++---------
libswscale/version.h | 2 +-
4 files changed, 67 insertions(+), 12 deletions(-)

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