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>

1 files changed, 25 insertions, 1 deletions

diff --git a/libavcodec/svq1encdsp.h b/libavcodec/svq1encdsp.h
index 5dfa35cc62..751b5eed86 100644
--- a/libavcodec/svq1encdsp.h
+++ b/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 */