add proper prefix to extern mpeg audio data tables

Originally committed as revision 9061 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/bitstream_filter.c

@@ -211,10 +211,10 @@ static int mp3_header_decompress(AVBitStreamFilterContext *bsfc, AVCodecContext
     lsf     = sample_rate < (24000+32000)/2;
     mpeg25  = sample_rate < (12000+16000)/2;
     sample_rate_index= (header>>10)&3;
-    sample_rate= mpa_freq_tab[sample_rate_index] >> (lsf + mpeg25); //in case sample rate is a little off
+    sample_rate= ff_mpa_freq_tab[sample_rate_index] >> (lsf + mpeg25); //in case sample rate is a little off
 
     for(bitrate_index=2; bitrate_index<30; bitrate_index++){
-        frame_size = mpa_bitrate_tab[lsf][2][bitrate_index>>1];
+        frame_size = ff_mpa_bitrate_tab[lsf][2][bitrate_index>>1];
         frame_size = (frame_size * 144000) / (sample_rate << lsf) + (bitrate_index&1);
         if(frame_size == buf_size + 4)
             break;

libavcodec/mpegaudio.c

@@ -84,9 +84,9 @@ static int MPA_encode_init(AVCodecContext *avctx)
     /* encoding freq */
     s->lsf = 0;
     for(i=0;i<3;i++) {
-        if (mpa_freq_tab[i] == freq)
+        if (ff_mpa_freq_tab[i] == freq)
             break;
-        if ((mpa_freq_tab[i] / 2) == freq) {
+        if ((ff_mpa_freq_tab[i] / 2) == freq) {
             s->lsf = 1;
             break;
         }
@@ -99,7 +99,7 @@ static int MPA_encode_init(AVCodecContext *avctx)
 
     /* encoding bitrate & frequency */
     for(i=0;i<15;i++) {
-        if (mpa_bitrate_tab[s->lsf][1][i] == bitrate)
+        if (ff_mpa_bitrate_tab[s->lsf][1][i] == bitrate)
             break;
     }
     if (i == 15){
@@ -121,8 +121,8 @@ static int MPA_encode_init(AVCodecContext *avctx)
     table = l2_select_table(bitrate, s->nb_channels, freq, s->lsf);
 
     /* number of used subbands */
-    s->sblimit = sblimit_table[table];
-    s->alloc_table = alloc_tables[table];
+    s->sblimit = ff_mpa_sblimit_table[table];
+    s->alloc_table = ff_mpa_alloc_tables[table];
 
 #ifdef DEBUG
     av_log(avctx, AV_LOG_DEBUG, "%d kb/s, %d Hz, frame_size=%d bits, table=%d, padincr=%x\n",
@@ -134,7 +134,7 @@ static int MPA_encode_init(AVCodecContext *avctx)
 
     for(i=0;i<257;i++) {
         int v;
-        v = mpa_enwindow[i];
+        v = ff_mpa_enwindow[i];
 #if WFRAC_BITS != 16
         v = (v + (1 << (16 - WFRAC_BITS - 1))) >> (16 - WFRAC_BITS);
 #endif
@@ -174,7 +174,7 @@ static int MPA_encode_init(AVCodecContext *avctx)
     }
 
     for(i=0;i<17;i++) {
-        v = quant_bits[i];
+        v = ff_mpa_quant_bits[i];
         if (v < 0)
             v = -v;
         else
@@ -688,7 +688,7 @@ static void encode_frame(MpegAudioContext *s,
                         int qindex, steps, m, sample, bits;
                         /* we encode 3 sub band samples of the same sub band at a time */
                         qindex = s->alloc_table[j+b];
-                        steps = quant_steps[qindex];
+                        steps = ff_mpa_quant_steps[qindex];
                         for(m=0;m<3;m++) {
                             sample = s->sb_samples[ch][k][l + m][i];
                             /* divide by scale factor */
@@ -718,7 +718,7 @@ static void encode_frame(MpegAudioContext *s,
                                 q[m] = steps - 1;
                             assert(q[m] >= 0 && q[m] < steps);
                         }
-                        bits = quant_bits[qindex];
+                        bits = ff_mpa_quant_bits[qindex];
                         if (bits < 0) {
                             /* group the 3 values to save bits */
                             put_bits(p, -bits,

libavcodec/mpegaudiodata.c

@@ -27,7 +27,7 @@
 #include "mpegaudiodata.h"
 
 
-const uint16_t mpa_bitrate_tab[2][3][15] = {
+const uint16_t ff_mpa_bitrate_tab[2][3][15] = {
     { {0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448 },
       {0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384 },
       {0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 } },
@@ -37,11 +37,11 @@ const uint16_t mpa_bitrate_tab[2][3][15] = {
     }
 };
 
-const uint16_t mpa_freq_tab[3] = { 44100, 48000, 32000 };
+const uint16_t ff_mpa_freq_tab[3] = { 44100, 48000, 32000 };
 
 /*******************************************************/
 /* half mpeg encoding window (full precision) */
-const int32_t mpa_enwindow[257] = {
+const int32_t ff_mpa_enwindow[257] = {
      0,    -1,    -1,    -1,    -1,    -1,    -1,    -2,
     -2,    -2,    -2,    -3,    -3,    -4,    -4,    -5,
     -5,    -6,    -7,    -7,    -8,    -9,   -10,   -11,
@@ -80,9 +80,9 @@ const int32_t mpa_enwindow[257] = {
 /*******************************************************/
 /* layer 2 tables */
 
-const int sblimit_table[5] = { 27 , 30 , 8, 12 , 30 };
+const int ff_mpa_sblimit_table[5] = { 27 , 30 , 8, 12 , 30 };
 
-const int quant_steps[17] = {
+const int ff_mpa_quant_steps[17] = {
     3,     5,    7,    9,    15,
     31,    63,  127,  255,   511,
     1023,  2047, 4095, 8191, 16383,
@@ -90,7 +90,7 @@ const int quant_steps[17] = {
 };
 
 /* we use a negative value if grouped */
-const int quant_bits[17] = {
+const int ff_mpa_quant_bits[17] = {
     -5,  -7,  3, -10, 4,
      5,  6,  7,  8,  9,
     10, 11, 12, 13, 14,
@@ -221,5 +221,5 @@ static const unsigned char alloc_table_4[] = {
  2,  0,  1,  3,
 };
 
-const unsigned char *alloc_tables[5] =
+const unsigned char *ff_mpa_alloc_tables[5] =
 { alloc_table_0, alloc_table_1, alloc_table_2, alloc_table_3, alloc_table_4, };

libavcodec/mpegaudiodata.h

@@ -29,12 +29,12 @@
 
 #include "common.h"
 
-extern const uint16_t mpa_bitrate_tab[2][3][15];
-extern const uint16_t mpa_freq_tab[3];
-extern const int32_t mpa_enwindow[257];
-extern const int sblimit_table[5];
-extern const int quant_steps[17];
-extern const int quant_bits[17];
-extern const unsigned char *alloc_tables[5];
+extern const uint16_t ff_mpa_bitrate_tab[2][3][15];
+extern const uint16_t ff_mpa_freq_tab[3];
+extern const int32_t ff_mpa_enwindow[257];
+extern const int ff_mpa_sblimit_table[5];
+extern const int ff_mpa_quant_steps[17];
+extern const int ff_mpa_quant_bits[17];
+extern const unsigned char *ff_mpa_alloc_tables[5];
 
 #endif /* MPEGAUDIODATA_H */

libavcodec/mpegaudiodec.c

@@ -825,7 +825,7 @@ void ff_mpa_synth_init(MPA_INT *window)
     /* max = 18760, max sum over all 16 coefs : 44736 */
     for(i=0;i<257;i++) {
         int v;
-        v = mpa_enwindow[i];
+        v = ff_mpa_enwindow[i];
 #if WFRAC_BITS < 16
         v = (v + (1 << (16 - WFRAC_BITS - 1))) >> (16 - WFRAC_BITS);
 #endif
@@ -1125,7 +1125,7 @@ static int decode_header(MPADecodeContext *s, uint32_t header)
     s->layer = 4 - ((header >> 17) & 3);
     /* extract frequency */
     sample_rate_index = (header >> 10) & 3;
-    sample_rate = mpa_freq_tab[sample_rate_index] >> (s->lsf + mpeg25);
+    sample_rate = ff_mpa_freq_tab[sample_rate_index] >> (s->lsf + mpeg25);
     sample_rate_index += 3 * (s->lsf + mpeg25);
     s->sample_rate_index = sample_rate_index;
     s->error_protection = ((header >> 16) & 1) ^ 1;
@@ -1146,7 +1146,7 @@ static int decode_header(MPADecodeContext *s, uint32_t header)
         s->nb_channels = 2;
 
     if (bitrate_index != 0) {
-        frame_size = mpa_bitrate_tab[s->lsf][s->layer - 1][bitrate_index];
+        frame_size = ff_mpa_bitrate_tab[s->lsf][s->layer - 1][bitrate_index];
         s->bit_rate = frame_size * 1000;
         switch(s->layer) {
         case 1:
@@ -1327,8 +1327,8 @@ static int mp_decode_layer2(MPADecodeContext *s)
     /* select decoding table */
     table = l2_select_table(s->bit_rate / 1000, s->nb_channels,
                             s->sample_rate, s->lsf);
-    sblimit = sblimit_table[table];
-    alloc_table = alloc_tables[table];
+    sblimit = ff_mpa_sblimit_table[table];
+    alloc_table = ff_mpa_alloc_tables[table];
 
     if (s->mode == MPA_JSTEREO)
         bound = (s->mode_ext + 1) * 4;
@@ -1432,11 +1432,11 @@ static int mp_decode_layer2(MPADecodeContext *s)
                     if (b) {
                         scale = scale_factors[ch][i][k];
                         qindex = alloc_table[j+b];
-                        bits = quant_bits[qindex];
+                        bits = ff_mpa_quant_bits[qindex];
                         if (bits < 0) {
                             /* 3 values at the same time */
                             v = get_bits(&s->gb, -bits);
-                            steps = quant_steps[qindex];
+                            steps = ff_mpa_quant_steps[qindex];
                             s->sb_samples[ch][k * 12 + l + 0][i] =
                                 l2_unscale_group(steps, v % steps, scale);
                             v = v / steps;
@@ -1470,11 +1470,11 @@ static int mp_decode_layer2(MPADecodeContext *s)
                     scale0 = scale_factors[0][i][k];
                     scale1 = scale_factors[1][i][k];
                     qindex = alloc_table[j+b];
-                    bits = quant_bits[qindex];
+                    bits = ff_mpa_quant_bits[qindex];
                     if (bits < 0) {
                         /* 3 values at the same time */
                         v = get_bits(&s->gb, -bits);
-                        steps = quant_steps[qindex];
+                        steps = ff_mpa_quant_steps[qindex];
                         mant = v % steps;
                         v = v / steps;
                         s->sb_samples[0][k * 12 + l + 0][i] =