swscale/swscale_internal: Don't export internal function

sws_alloc_set_opts() can actually be made internal to utils.c.
This commit does so.

Signed-off-by: Andreas Rheinhardt <[email protected]>

Author: mkver

libswscale/swscale_internal.h

@@ -1003,17 +1003,6 @@ void ff_hcscale_fast_mmxext(SwsContext *c, int16_t *dst1, int16_t *dst2,
                             int dstWidth, const uint8_t *src1,
                             const uint8_t *src2, int srcW, int xInc);
 
-/**
- * Allocate and return an SwsContext.
- * This is like sws_getContext() but does not perform the init step, allowing
- * the user to set additional AVOptions.
- *
- * @see sws_getContext()
- */
-struct SwsContext *sws_alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat,
-                                      int dstW, int dstH, enum AVPixelFormat dstFormat,
-                                      int flags, const double *param);
-
 int ff_sws_alphablendaway(SwsContext *c, const uint8_t *src[],
                           int srcStride[], int srcSliceY, int srcSliceH,
                           uint8_t *dst[], int dstStride[]);

libswscale/utils.c

@@ -269,6 +269,34 @@ static const FormatEntry format_entries[] = {
     [AV_PIX_FMT_XV36LE]      = { 1, 1 },
 };
 
+/**
+ * Allocate and return an SwsContext without performing initialization.
+ */
+static SwsContext *alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat,
+                                  int dstW, int dstH, enum AVPixelFormat dstFormat,
+                                  int flags, const double *param)
+{
+    SwsContext *c = sws_alloc_context();
+
+    if (!c)
+        return NULL;
+
+    c->flags     = flags;
+    c->srcW      = srcW;
+    c->srcH      = srcH;
+    c->dstW      = dstW;
+    c->dstH      = dstH;
+    c->srcFormat = srcFormat;
+    c->dstFormat = dstFormat;
+
+    if (param) {
+        c->param[0] = param[0];
+        c->param[1] = param[1];
+    }
+
+    return c;
+}
+
 int ff_shuffle_filter_coefficients(SwsContext *c, int *filterPos,
                                    int filterSize, int16_t *filter,
                                    int dstW)
@@ -1101,9 +1129,9 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
             if (ret < 0)
                 return ret;
 
-            c->cascaded_context[0] = sws_alloc_set_opts(srcW, srcH, c->srcFormat,
-                                                        tmp_width, tmp_height, tmp_format,
-                                                        c->flags, c->param);
+            c->cascaded_context[0] = alloc_set_opts(srcW, srcH, c->srcFormat,
+                                                    tmp_width, tmp_height, tmp_format,
+                                                    c->flags, c->param);
             if (!c->cascaded_context[0])
                 return -1;
 
@@ -1116,9 +1144,9 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
                                      srcRange, table, dstRange,
                                      brightness, contrast, saturation);
 
-            c->cascaded_context[1] = sws_alloc_set_opts(tmp_width, tmp_height, tmp_format,
-                                                        dstW, dstH, c->dstFormat,
-                                                        c->flags, c->param);
+            c->cascaded_context[1] = alloc_set_opts(tmp_width, tmp_height, tmp_format,
+                                                    dstW, dstH, c->dstFormat,
+                                                    c->flags, c->param);
             if (!c->cascaded_context[1])
                 return -1;
             c->cascaded_context[1]->srcRange = srcRange;
@@ -1682,19 +1710,19 @@ static av_cold int sws_init_single_context(SwsContext *c, SwsFilter *srcFilter,
                 if (ret < 0)
                     return ret;
 
-                c->cascaded_context[0] = sws_alloc_set_opts(srcW, srcH, srcFormat,
-                                                            srcW, srcH, tmpFormat,
-                                                            flags, c->param);
+                c->cascaded_context[0] = alloc_set_opts(srcW, srcH, srcFormat,
+                                                        srcW, srcH, tmpFormat,
+                                                        flags, c->param);
                 if (!c->cascaded_context[0])
                     return AVERROR(EINVAL);
                 c->cascaded_context[0]->alphablend = c->alphablend;
                 ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
                 if (ret < 0)
                     return ret;
 
-                c->cascaded_context[1] = sws_alloc_set_opts(srcW, srcH, tmpFormat,
-                                                            dstW, dstH, dstFormat,
-                                                            flags, c->param);
+                c->cascaded_context[1] = alloc_set_opts(srcW, srcH, tmpFormat,
+                                                        dstW, dstH, dstFormat,
+                                                        flags, c->param);
                 if (!c->cascaded_context[1])
                     return AVERROR(EINVAL);
 
@@ -2066,41 +2094,16 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
     return sws_init_single_context(c, srcFilter, dstFilter);
 }
 
-SwsContext *sws_alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat,
-                               int dstW, int dstH, enum AVPixelFormat dstFormat,
-                               int flags, const double *param)
-{
-    SwsContext *c;
-
-    if (!(c = sws_alloc_context()))
-        return NULL;
-
-    c->flags     = flags;
-    c->srcW      = srcW;
-    c->srcH      = srcH;
-    c->dstW      = dstW;
-    c->dstH      = dstH;
-    c->srcFormat = srcFormat;
-    c->dstFormat = dstFormat;
-
-    if (param) {
-        c->param[0] = param[0];
-        c->param[1] = param[1];
-    }
-
-    return c;
-}
-
 SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat,
                            int dstW, int dstH, enum AVPixelFormat dstFormat,
                            int flags, SwsFilter *srcFilter,
                            SwsFilter *dstFilter, const double *param)
 {
     SwsContext *c;
 
-    c = sws_alloc_set_opts(srcW, srcH, srcFormat,
-                           dstW, dstH, dstFormat,
-                           flags, param);
+    c = alloc_set_opts(srcW, srcH, srcFormat,
+                       dstW, dstH, dstFormat,
+                       flags, param);
     if (!c)
         return NULL;