On Wed, Dec 21, 2016 at 09:16:40PM +0100, Paul B Mahol wrote:
> Signed-off-by: Paul B Mahol <one...@gmail.com>
> ---
> Changelog | 1 +
> doc/general.texi | 1 +
> libavcodec/Makefile | 1 +
> libavcodec/allcodecs.c | 1 +
> libavcodec/avcodec.h | 1 +
> libavcodec/codec_desc.c | 7 +
> libavcodec/pixlet.c | 756
> ++++++++++++++++++++++++++++++++++++++++++++++++
> libavformat/isom.c | 2 +
> 8 files changed, 770 insertions(+)
> create mode 100644 libavcodec/pixlet.c
[...]
> +static void reconstruction(AVCodecContext *avctx,
> + int16_t *dest, unsigned width, unsigned height,
> ptrdiff_t stride, int nb_levels,
> + float *scaling_H, float *scaling_V, int lowres)
> +{
> + PixletContext *ctx = avctx->priv_data;
> + unsigned scaled_width, scaled_height;
> + float scale_H, scale_V;
> + int16_t *ptr, *tmp;
> + int i, j, k;
> +
> + scaled_height = height >> nb_levels;
> + scaled_width = width >> nb_levels;
> + tmp = ctx->filter[0];
> +
> + for (i = 0; i < nb_levels; i++) {
> + scaled_width <<= 1;
> + scaled_height <<= 1;
> + scale_H = scaling_H[i + lowres];
> + scale_V = scaling_V[i + lowres];
> +
> + ptr = dest;
> + for (j = 0; j < scaled_height; j++) {
> + filter(ptr, ctx->filter[1], scaled_width, scale_V);
> + ptr += stride;
> + }
> +
> + for (j = 0; j < scaled_width; j++) {
> + ptr = dest + j;
> + for (k = 0; k < scaled_height; k++) {
> + tmp[k] = *ptr;
> + ptr += stride;
> + }
> +
> + filter(tmp, ctx->filter[1], scaled_height, scale_H);
> +
> + ptr = dest + j;
> + for (k = 0; k < scaled_height; k++) {
> + *ptr = tmp[k];
> + ptr += stride;
> + }
> + }
> + }
> +}
> +> +#define SQR(a) (a * a) missinng protection () #define SQR(a) ((a) * (a)) [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB In fact, the RIAA has been known to suggest that students drop out of college or go to community college in order to be able to afford settlements. -- The RIAA
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