X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fjpegls.h;h=eae3943c303a9ac6cb780e969775203eae5b0637;hb=bfe1cd80ebeab58cbc1c91ac766a96fce8e4ec1e;hp=c2b22e25e611ad155c1ceecc8f1f5f448760e4c3;hpb=987903826b0dba2e134be200ac94be66b4a3acf1;p=ffmpeg

diff --git a/libavcodec/jpegls.h b/libavcodec/jpegls.h
index c2b22e25e61..eae3943c303 100644
--- a/libavcodec/jpegls.h
+++ b/libavcodec/jpegls.h
@@ -3,45 +3,45 @@
  * Copyright (c) 2003 Michael Niedermayer
  * Copyright (c) 2006 Konstantin Shishkov
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
- * @file jpegls.h
+ * @file
  * JPEG-LS common code.
  */
 
 #ifndef AVCODEC_JPEGLS_H
 #define AVCODEC_JPEGLS_H
 
+#include "libavutil/common.h"
 #include "avcodec.h"
 
-typedef struct JpeglsContext{
+typedef struct JpeglsContext {
     AVCodecContext *avctx;
-    AVFrame picture;
-}JpeglsContext;
+} JpeglsContext;
 
-typedef struct JLSState{
+typedef struct JLSState {
     int T1, T2, T3;
     int A[367], B[367], C[365], N[367];
     int limit, reset, bpp, qbpp, maxval, range;
     int near, twonear;
     int run_index[3];
-}JLSState;
+} JLSState;
 
 extern const uint8_t ff_log2_run[32];
 
@@ -53,19 +53,29 @@ void ff_jpegls_init_state(JLSState *state);
 /**
  * Calculate quantized gradient value, used for context determination
  */
-static inline int ff_jpegls_quantize(JLSState *s, int v){ //FIXME optimize
-    if(v==0) return 0;
-    if(v < 0){
-        if(v <= -s->T3) return -4;
-        if(v <= -s->T2) return -3;
-        if(v <= -s->T1) return -2;
-        if(v <  -s->near) return -1;
+static inline int ff_jpegls_quantize(JLSState *s, int v)
+{
+    if (v == 0)
         return 0;
-    }else{
-        if(v <= s->near) return 0;
-        if(v <  s->T1) return 1;
-        if(v <  s->T2) return 2;
-        if(v <  s->T3) return 3;
+    if (v < 0) {
+        if (v <= -s->T3)
+            return -4;
+        if (v <= -s->T2)
+            return -3;
+        if (v <= -s->T1)
+            return -2;
+        if (v < -s->near)
+            return -1;
+        return 0;
+    } else {
+        if (v <= s->near)
+            return 0;
+        if (v < s->T1)
+            return 1;
+        if (v < s->T2)
+            return 2;
+        if (v < s->T3)
+            return 3;
         return 4;
     }
 }
@@ -75,37 +85,39 @@ static inline int ff_jpegls_quantize(JLSState *s, int v){ //FIXME optimize
  */
 void ff_jpegls_reset_coding_parameters(JLSState *s, int reset_all);
 
-
-static inline void ff_jpegls_downscale_state(JLSState *state, int Q){
-    if(state->N[Q] == state->reset){
-        state->A[Q] >>=1;
-        state->B[Q] >>=1;
-        state->N[Q] >>=1;
+static inline void ff_jpegls_downscale_state(JLSState *state, int Q)
+{
+    if (state->N[Q] == state->reset) {
+        state->A[Q] >>= 1;
+        state->B[Q] >>= 1;
+        state->N[Q] >>= 1;
     }
     state->N[Q]++;
 }
 
-static inline int ff_jpegls_update_state_regular(JLSState *state, int Q, int err){
+static inline int ff_jpegls_update_state_regular(JLSState *state,
+                                                 int Q, int err)
+{
     state->A[Q] += FFABS(err);
-    err *= state->twonear;
+    err         *= state->twonear;
     state->B[Q] += err;
 
     ff_jpegls_downscale_state(state, Q);
 
-    if(state->B[Q] <= -state->N[Q]) {
-        state->B[Q]= FFMAX(state->B[Q] + state->N[Q], 1-state->N[Q]);
-        if(state->C[Q] > -128)
+    if (state->B[Q] <= -state->N[Q]) {
+        state->B[Q] = FFMAX(state->B[Q] + state->N[Q], 1 - state->N[Q]);
+        if (state->C[Q] > -128)
             state->C[Q]--;
-    }else if(state->B[Q] > 0){
-        state->B[Q]= FFMIN(state->B[Q] - state->N[Q], 0);
-        if(state->C[Q] < 127)
+    } else if (state->B[Q] > 0) {
+        state->B[Q] = FFMIN(state->B[Q] - state->N[Q], 0);
+        if (state->C[Q] < 127)
             state->C[Q]++;
     }
 
     return err;
 }
 
-#define R(a, i   ) (bits == 8 ?  ((uint8_t*)(a))[i]    :  ((uint16_t*)(a))[i]  )
-#define W(a, i, v) (bits == 8 ? (((uint8_t*)(a))[i]=v) : (((uint16_t*)(a))[i]=v))
+#define R(a, i)    (bits == 8 ?  ((uint8_t *)(a))[i]      :  ((uint16_t *)(a))[i])
+#define W(a, i, v) (bits == 8 ? (((uint8_t *)(a))[i] = v) : (((uint16_t *)(a))[i] = v))
 
 #endif /* AVCODEC_JPEGLS_H */