Change SVT to clamp speed from 0-13

This based on comments from
#2422 (comment)

CHANGELOG.md

@@ -30,7 +30,7 @@ The changes are relative to the previous release, unless the baseline is specifi
   avifGainMapMetadataDouble structs.
 * Add avif(Un)SignedFraction structs and avifDoubleTo(Un)SignedFraction
   utility functions.
-* In avif.h, changed "AVIF_SPEED_FASTEST" value to 13 from 10.
+* Change codec_svt.c to clamp from 0 to 13.
 
 ## [1.1.1] - 2024-07-30
 

apps/avifenc.c

@@ -201,7 +201,7 @@ static void syntaxLong(void)
            AVIF_QUALITY_LOSSLESS);
     printf("    -s,--speed S                      : Encoder speed (%d-%d, slowest-fastest, 'default' or 'd' for codec internal defaults. default speed: 6)\n",
            AVIF_SPEED_SLOWEST,
-           AVIF_SPEED_FASTEST);
+           13);
     printf("                                        libaom range 0-9 & rav1e range 0-10\n");
     printf("\n");
     printf("Advanced options:\n");
@@ -1735,9 +1735,6 @@ int main(int argc, char * argv[])
                 settings.speed = AVIF_SPEED_DEFAULT;
             } else {
                 settings.speed = atoi(arg);
-                if (settings.speed > AVIF_SPEED_FASTEST) {
-                    settings.speed = AVIF_SPEED_FASTEST;
-                }
                 if (settings.speed < AVIF_SPEED_SLOWEST) {
                     settings.speed = AVIF_SPEED_SLOWEST;
                 }

include/avif/avif.h

@@ -113,9 +113,7 @@ typedef int avifBool;
 
 #define AVIF_SPEED_DEFAULT -1
 #define AVIF_SPEED_SLOWEST 0
-
-// Libaom and Rav1e fastest speed setting is 10, while SVT-AV1 fastest profile is 13.
-#define AVIF_SPEED_FASTEST 13
+#define AVIF_SPEED_FASTEST 10
 
 // This value is used to indicate that an animated AVIF file has to be repeated infinitely.
 #define AVIF_REPETITION_COUNT_INFINITE -1

src/codec_svt.c

@@ -160,7 +160,7 @@ static avifResult svtCodecEncodeImage(avifCodec * codec,
         }
         if (encoder->speed != AVIF_SPEED_DEFAULT) {
 #if SVT_AV1_CHECK_VERSION(0, 9, 0)
-            int speed = AVIF_CLAMP(encoder->speed, 0, AVIF_SPEED_FASTEST);
+            int speed = AVIF_CLAMP(encoder->speed, 0, 13);
 #else
             int speed = AVIF_CLAMP(encoder->speed, 0, 8);
 #endif