avcodec: Constify AVCodecs

[ffmpeg] / libavcodec / mpegaudiodec_fixed.c

diff --git a/libavcodec/mpegaudiodec_fixed.c b/libavcodec/mpegaudiodec_fixed.c
index 6fe372b38f953c1dd2477bf18b3f0c9e74d4b74c..f9f24330fd753bb282480b4956657313d38170f6 100644 (file)
--- a/libavcodec/mpegaudiodec_fixed.c
+++ b/libavcodec/mpegaudiodec_fixed.c
@@ -36,10 +36,30 @@
 #define OUT_FMT   AV_SAMPLE_FMT_S16
 #define OUT_FMT_P AV_SAMPLE_FMT_S16P
 
+/* Intensity stereo table. See commit b91d46614df189e7905538e7f5c4ed9c7ed0d274
+ * (float based mp1/mp2/mp3 decoders.) for how they were created. */
+static const int32_t is_table[2][16] = {
+    { 0x000000, 0x1B0CB1, 0x2ED9EC, 0x400000, 0x512614, 0x64F34F, 0x800000 },
+    { 0x800000, 0x64F34F, 0x512614, 0x400000, 0x2ED9EC, 0x1B0CB1, 0x000000 }
+};
+
+/* Antialiasing table. See commit ce4a29c066cddfc180979ed86396812f24337985
+ * (optimize antialias) for how they were created. */
+static const int32_t csa_table[8][4] = {
+    { 0x36E129F8, 0xDF128056, 0x15F3AA4E, 0xA831565E },
+    { 0x386E75F2, 0xE1CF24A5, 0x1A3D9A97, 0xA960AEB3 },
+    { 0x3CC6B73A, 0xEBF19FA6, 0x28B856E0, 0xAF2AE86C },
+    { 0x3EEEA054, 0xF45B88BC, 0x334A2910, 0xB56CE868 },
+    { 0x3FB6905C, 0xF9F27F18, 0x39A90F74, 0xBA3BEEBC },
+    { 0x3FF23F20, 0xFD60D1E4, 0x3D531104, 0xBD6E92C4 },
+    { 0x3FFE5932, 0xFF175EE4, 0x3F15B816, 0xBF1905B2 },
+    { 0x3FFFE34A, 0xFFC3612F, 0x3FC34479, 0xBFC37DE5 }
+};
+
 #include "mpegaudiodec_template.c"
 
 #if CONFIG_MP1_DECODER
-AVCodec ff_mp1_decoder = {
+const AVCodec ff_mp1_decoder = {
     .name           = "mp1",
     .long_name      = NULL_IF_CONFIG_SMALL("MP1 (MPEG audio layer 1)"),
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -57,7 +77,7 @@ AVCodec ff_mp1_decoder = {
 };
 #endif
 #if CONFIG_MP2_DECODER
-AVCodec ff_mp2_decoder = {
+const AVCodec ff_mp2_decoder = {
     .name           = "mp2",
     .long_name      = NULL_IF_CONFIG_SMALL("MP2 (MPEG audio layer 2)"),
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -75,7 +95,7 @@ AVCodec ff_mp2_decoder = {
 };
 #endif
 #if CONFIG_MP3_DECODER
-AVCodec ff_mp3_decoder = {
+const AVCodec ff_mp3_decoder = {
     .name           = "mp3",
     .long_name      = NULL_IF_CONFIG_SMALL("MP3 (MPEG audio layer 3)"),
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -93,7 +113,7 @@ AVCodec ff_mp3_decoder = {
 };
 #endif
 #if CONFIG_MP3ADU_DECODER
-AVCodec ff_mp3adu_decoder = {
+const AVCodec ff_mp3adu_decoder = {
     .name           = "mp3adu",
     .long_name      = NULL_IF_CONFIG_SMALL("ADU (Application Data Unit) MP3 (MPEG audio layer 3)"),
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -111,7 +131,7 @@ AVCodec ff_mp3adu_decoder = {
 };
 #endif
 #if CONFIG_MP3ON4_DECODER
-AVCodec ff_mp3on4_decoder = {
+const AVCodec ff_mp3on4_decoder = {
     .name           = "mp3on4",
     .long_name      = NULL_IF_CONFIG_SMALL("MP3onMP4"),
     .type           = AVMEDIA_TYPE_AUDIO,