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Diffstat (limited to 'contrib/ffmpeg/libavcodec/jpegls.c')
-rw-r--r--contrib/ffmpeg/libavcodec/jpegls.c96
1 files changed, 0 insertions, 96 deletions
diff --git a/contrib/ffmpeg/libavcodec/jpegls.c b/contrib/ffmpeg/libavcodec/jpegls.c
deleted file mode 100644
index 8a6f5065c..000000000
--- a/contrib/ffmpeg/libavcodec/jpegls.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * JPEG-LS common code
- * Copyright (c) 2003 Michael Niedermayer
- * Copyright (c) 2006 Konstantin Shishkov
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file jpegls.c
- * JPEG-LS common code.
- */
-
-#include "jpegls.h"
-
-const uint8_t ff_log2_run[32]={
- 0, 0, 0, 0, 1, 1, 1, 1,
- 2, 2, 2, 2, 3, 3, 3, 3,
- 4, 4, 5, 5, 6, 6, 7, 7,
- 8, 9,10,11,12,13,14,15
-};
-
-void ff_jpegls_init_state(JLSState *state){
- int i;
-
- state->twonear = state->near * 2 + 1;
- state->range = ((state->maxval + state->twonear - 1) / state->twonear) + 1;
-
- // QBPP = ceil(log2(RANGE))
- for(state->qbpp = 0; (1 << state->qbpp) < state->range; state->qbpp++);
-
- if(state->bpp < 8)
- state->limit = 16 + 2 * state->bpp - state->qbpp;
- else
- state->limit = (4 * state->bpp) - state->qbpp;
-
- for(i = 0; i < 367; i++) {
- state->A[i] = FFMAX((state->range + 32) >> 6, 2);
- state->N[i] = 1;
- }
-
-}
-
-/**
- * Custom value clipping function used in T1, T2, T3 calculation
- */
-static inline int iso_clip(int v, int vmin, int vmax){
- if(v > vmax || v < vmin) return vmin;
- else return v;
-}
-
-void ff_jpegls_reset_coding_parameters(JLSState *s, int reset_all){
- const int basic_t1= 3;
- const int basic_t2= 7;
- const int basic_t3= 21;
- int factor;
-
- if(s->maxval==0 || reset_all) s->maxval= (1 << s->bpp) - 1;
-
- if(s->maxval >=128){
- factor= (FFMIN(s->maxval, 4095) + 128)>>8;
-
- if(s->T1==0 || reset_all)
- s->T1= iso_clip(factor*(basic_t1-2) + 2 + 3*s->near, s->near+1, s->maxval);
- if(s->T2==0 || reset_all)
- s->T2= iso_clip(factor*(basic_t2-3) + 3 + 5*s->near, s->T1, s->maxval);
- if(s->T3==0 || reset_all)
- s->T3= iso_clip(factor*(basic_t3-4) + 4 + 7*s->near, s->T2, s->maxval);
- }else{
- factor= 256 / (s->maxval + 1);
-
- if(s->T1==0 || reset_all)
- s->T1= iso_clip(FFMAX(2, basic_t1/factor + 3*s->near), s->near+1, s->maxval);
- if(s->T2==0 || reset_all)
- s->T2= iso_clip(FFMAX(3, basic_t2/factor + 5*s->near), s->T1, s->maxval);
- if(s->T3==0 || reset_all)
- s->T3= iso_clip(FFMAX(4, basic_t3/factor + 6*s->near), s->T2, s->maxval);
- }
-
- if(s->reset==0 || reset_all) s->reset= 64;
-// av_log(NULL, AV_LOG_DEBUG, "[JPEG-LS RESET] T=%i,%i,%i\n", s->T1, s->T2, s->T3);
-}