avcodec/svq1enc: Move initializing DSP out of svq1enc.c

Otherwise svq1enc.o gets pulled in by the svq1encdsp checkasm
test and it in turn pulls the rest of lavc in.
Besides being bad size-wise this also has the downside that
it pulls in avpriv_(cga|vga16)_font from libavutil which are
marked as being imported from another library when building
libavcodec as a DLL and this breaks checkasm because it links
both lavc and lavu statically.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/svq1enc.c

@@ -137,16 +137,6 @@ static void svq1_write_header(SVQ1EncContext *s, PutBitContext *pb, int frame_ty
 #define QUALITY_THRESHOLD    100
 #define THRESHOLD_MULTIPLIER 0.6
 
-static int ssd_int8_vs_int16_c(const int8_t *pix1, const int16_t *pix2,
-                               intptr_t size)
-{
-    int score = 0, i;
-
-    for (i = 0; i < size; i++)
-        score += (pix1[i] - pix2[i]) * (pix1[i] - pix2[i]);
-    return score;
-}
-
 static int encode_block(SVQ1EncContext *s, uint8_t *src, uint8_t *ref,
                         uint8_t *decoded, int stride, unsigned level,
                         int threshold, int lambda, int intra)
@@ -760,16 +750,3 @@ const FFCodec ff_svq1_encoder = {
                                                      AV_PIX_FMT_NONE },
     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
 };
-
-void ff_svq1enc_init(SVQ1EncDSPContext *c)
-{
-    c->ssd_int8_vs_int16 = ssd_int8_vs_int16_c;
-
-#if ARCH_PPC
-    ff_svq1enc_init_ppc(c);
-#elif ARCH_RISCV
-    ff_svq1enc_init_riscv(c);
-#elif ARCH_X86
-    ff_svq1enc_init_x86(c);
-#endif
-}

libavcodec/svq1encdsp.h

@@ -23,14 +23,38 @@
 
 #include <stdint.h>
 
+#include "config.h"
+
 typedef struct SVQ1EncDSPContext {
     int (*ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2,
                              intptr_t size);
 } SVQ1EncDSPContext;
 
-void ff_svq1enc_init(SVQ1EncDSPContext *c);
 void ff_svq1enc_init_ppc(SVQ1EncDSPContext *c);
 void ff_svq1enc_init_riscv(SVQ1EncDSPContext *c);
 void ff_svq1enc_init_x86(SVQ1EncDSPContext *c);
 
+static int ssd_int8_vs_int16_c(const int8_t *pix1, const int16_t *pix2,
+                               intptr_t size)
+{
+    int score = 0;
+
+    for (intptr_t i = 0; i < size; i++)
+        score += (pix1[i] - pix2[i]) * (pix1[i] - pix2[i]);
+    return score;
+}
+
+static inline void ff_svq1enc_init(SVQ1EncDSPContext *c)
+{
+    c->ssd_int8_vs_int16 = ssd_int8_vs_int16_c;
+
+#if ARCH_PPC
+    ff_svq1enc_init_ppc(c);
+#elif ARCH_RISCV
+    ff_svq1enc_init_riscv(c);
+#elif ARCH_X86
+    ff_svq1enc_init_x86(c);
+#endif
+}
+
 #endif /* AVCODEC_SVQ1ENCDSP_H */