[FFmpeg-devel] [PATCH] use smaller CRC tables for MLP if CONFIG_SMALL

[Reimar Döffinger]

Hello,
our CRC implementation can use ca. 1kB or ca. 4kB lookup tables.
This changes mlp.c to use the smaller one if CONFIG_SMALL is set.
Index: mlp.c
===================================================================
--- mlp.c       (revision 20245)
+++ mlp.c       (working copy)
@@ -42,9 +42,14 @@
 };
 
 static int crc_init = 0;
-static AVCRC crc_63[1024];
-static AVCRC crc_1D[1024];
-static AVCRC crc_2D[1024];
+#if CONFIG_SMALL
+#define CRC_TABLE_SIZE 257
+#else
+#define CRC_TABLE_SIZE 1024
+#endif
+static AVCRC crc_63[CRC_TABLE_SIZE];
+static AVCRC crc_1D[CRC_TABLE_SIZE];
+static AVCRC crc_2D[CRC_TABLE_SIZE];
 
 av_cold void ff_mlp_init_crc(void)
 {