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https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
add proper prefix to extern mpeg audio data tables
Originally committed as revision 9061 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
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4991c0516d
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677fe2e226
@ -211,10 +211,10 @@ static int mp3_header_decompress(AVBitStreamFilterContext *bsfc, AVCodecContext
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lsf = sample_rate < (24000+32000)/2;
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mpeg25 = sample_rate < (12000+16000)/2;
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sample_rate_index= (header>>10)&3;
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sample_rate= mpa_freq_tab[sample_rate_index] >> (lsf + mpeg25); //in case sample rate is a little off
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sample_rate= ff_mpa_freq_tab[sample_rate_index] >> (lsf + mpeg25); //in case sample rate is a little off
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for(bitrate_index=2; bitrate_index<30; bitrate_index++){
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frame_size = mpa_bitrate_tab[lsf][2][bitrate_index>>1];
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frame_size = ff_mpa_bitrate_tab[lsf][2][bitrate_index>>1];
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frame_size = (frame_size * 144000) / (sample_rate << lsf) + (bitrate_index&1);
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if(frame_size == buf_size + 4)
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break;
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@ -84,9 +84,9 @@ static int MPA_encode_init(AVCodecContext *avctx)
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/* encoding freq */
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s->lsf = 0;
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for(i=0;i<3;i++) {
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if (mpa_freq_tab[i] == freq)
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if (ff_mpa_freq_tab[i] == freq)
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break;
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if ((mpa_freq_tab[i] / 2) == freq) {
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if ((ff_mpa_freq_tab[i] / 2) == freq) {
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s->lsf = 1;
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break;
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}
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@ -99,7 +99,7 @@ static int MPA_encode_init(AVCodecContext *avctx)
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/* encoding bitrate & frequency */
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for(i=0;i<15;i++) {
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if (mpa_bitrate_tab[s->lsf][1][i] == bitrate)
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if (ff_mpa_bitrate_tab[s->lsf][1][i] == bitrate)
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break;
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}
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if (i == 15){
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@ -121,8 +121,8 @@ static int MPA_encode_init(AVCodecContext *avctx)
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table = l2_select_table(bitrate, s->nb_channels, freq, s->lsf);
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/* number of used subbands */
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s->sblimit = sblimit_table[table];
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s->alloc_table = alloc_tables[table];
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s->sblimit = ff_mpa_sblimit_table[table];
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s->alloc_table = ff_mpa_alloc_tables[table];
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#ifdef DEBUG
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av_log(avctx, AV_LOG_DEBUG, "%d kb/s, %d Hz, frame_size=%d bits, table=%d, padincr=%x\n",
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@ -134,7 +134,7 @@ static int MPA_encode_init(AVCodecContext *avctx)
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for(i=0;i<257;i++) {
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int v;
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v = mpa_enwindow[i];
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v = ff_mpa_enwindow[i];
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#if WFRAC_BITS != 16
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v = (v + (1 << (16 - WFRAC_BITS - 1))) >> (16 - WFRAC_BITS);
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#endif
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@ -174,7 +174,7 @@ static int MPA_encode_init(AVCodecContext *avctx)
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}
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for(i=0;i<17;i++) {
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v = quant_bits[i];
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v = ff_mpa_quant_bits[i];
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if (v < 0)
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v = -v;
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else
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@ -688,7 +688,7 @@ static void encode_frame(MpegAudioContext *s,
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int qindex, steps, m, sample, bits;
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/* we encode 3 sub band samples of the same sub band at a time */
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qindex = s->alloc_table[j+b];
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steps = quant_steps[qindex];
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steps = ff_mpa_quant_steps[qindex];
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for(m=0;m<3;m++) {
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sample = s->sb_samples[ch][k][l + m][i];
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/* divide by scale factor */
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@ -718,7 +718,7 @@ static void encode_frame(MpegAudioContext *s,
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q[m] = steps - 1;
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assert(q[m] >= 0 && q[m] < steps);
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}
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bits = quant_bits[qindex];
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bits = ff_mpa_quant_bits[qindex];
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if (bits < 0) {
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/* group the 3 values to save bits */
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put_bits(p, -bits,
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@ -27,7 +27,7 @@
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#include "mpegaudiodata.h"
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const uint16_t mpa_bitrate_tab[2][3][15] = {
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const uint16_t ff_mpa_bitrate_tab[2][3][15] = {
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{ {0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448 },
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{0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384 },
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{0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 } },
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@ -37,11 +37,11 @@ const uint16_t mpa_bitrate_tab[2][3][15] = {
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}
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};
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const uint16_t mpa_freq_tab[3] = { 44100, 48000, 32000 };
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const uint16_t ff_mpa_freq_tab[3] = { 44100, 48000, 32000 };
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/*******************************************************/
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/* half mpeg encoding window (full precision) */
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const int32_t mpa_enwindow[257] = {
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const int32_t ff_mpa_enwindow[257] = {
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0, -1, -1, -1, -1, -1, -1, -2,
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-2, -2, -2, -3, -3, -4, -4, -5,
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-5, -6, -7, -7, -8, -9, -10, -11,
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@ -80,9 +80,9 @@ const int32_t mpa_enwindow[257] = {
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/*******************************************************/
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/* layer 2 tables */
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const int sblimit_table[5] = { 27 , 30 , 8, 12 , 30 };
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const int ff_mpa_sblimit_table[5] = { 27 , 30 , 8, 12 , 30 };
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const int quant_steps[17] = {
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const int ff_mpa_quant_steps[17] = {
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3, 5, 7, 9, 15,
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31, 63, 127, 255, 511,
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1023, 2047, 4095, 8191, 16383,
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@ -90,7 +90,7 @@ const int quant_steps[17] = {
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};
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/* we use a negative value if grouped */
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const int quant_bits[17] = {
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const int ff_mpa_quant_bits[17] = {
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-5, -7, 3, -10, 4,
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5, 6, 7, 8, 9,
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10, 11, 12, 13, 14,
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@ -221,5 +221,5 @@ static const unsigned char alloc_table_4[] = {
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2, 0, 1, 3,
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};
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const unsigned char *alloc_tables[5] =
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const unsigned char *ff_mpa_alloc_tables[5] =
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{ alloc_table_0, alloc_table_1, alloc_table_2, alloc_table_3, alloc_table_4, };
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@ -29,12 +29,12 @@
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#include "common.h"
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extern const uint16_t mpa_bitrate_tab[2][3][15];
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extern const uint16_t mpa_freq_tab[3];
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extern const int32_t mpa_enwindow[257];
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extern const int sblimit_table[5];
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extern const int quant_steps[17];
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extern const int quant_bits[17];
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extern const unsigned char *alloc_tables[5];
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extern const uint16_t ff_mpa_bitrate_tab[2][3][15];
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extern const uint16_t ff_mpa_freq_tab[3];
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extern const int32_t ff_mpa_enwindow[257];
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extern const int ff_mpa_sblimit_table[5];
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extern const int ff_mpa_quant_steps[17];
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extern const int ff_mpa_quant_bits[17];
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extern const unsigned char *ff_mpa_alloc_tables[5];
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#endif /* MPEGAUDIODATA_H */
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@ -825,7 +825,7 @@ void ff_mpa_synth_init(MPA_INT *window)
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/* max = 18760, max sum over all 16 coefs : 44736 */
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for(i=0;i<257;i++) {
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int v;
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v = mpa_enwindow[i];
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v = ff_mpa_enwindow[i];
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#if WFRAC_BITS < 16
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v = (v + (1 << (16 - WFRAC_BITS - 1))) >> (16 - WFRAC_BITS);
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#endif
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@ -1125,7 +1125,7 @@ static int decode_header(MPADecodeContext *s, uint32_t header)
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s->layer = 4 - ((header >> 17) & 3);
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/* extract frequency */
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sample_rate_index = (header >> 10) & 3;
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sample_rate = mpa_freq_tab[sample_rate_index] >> (s->lsf + mpeg25);
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sample_rate = ff_mpa_freq_tab[sample_rate_index] >> (s->lsf + mpeg25);
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sample_rate_index += 3 * (s->lsf + mpeg25);
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s->sample_rate_index = sample_rate_index;
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s->error_protection = ((header >> 16) & 1) ^ 1;
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@ -1146,7 +1146,7 @@ static int decode_header(MPADecodeContext *s, uint32_t header)
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s->nb_channels = 2;
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if (bitrate_index != 0) {
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frame_size = mpa_bitrate_tab[s->lsf][s->layer - 1][bitrate_index];
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frame_size = ff_mpa_bitrate_tab[s->lsf][s->layer - 1][bitrate_index];
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s->bit_rate = frame_size * 1000;
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switch(s->layer) {
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case 1:
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@ -1327,8 +1327,8 @@ static int mp_decode_layer2(MPADecodeContext *s)
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/* select decoding table */
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table = l2_select_table(s->bit_rate / 1000, s->nb_channels,
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s->sample_rate, s->lsf);
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sblimit = sblimit_table[table];
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alloc_table = alloc_tables[table];
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sblimit = ff_mpa_sblimit_table[table];
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alloc_table = ff_mpa_alloc_tables[table];
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if (s->mode == MPA_JSTEREO)
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bound = (s->mode_ext + 1) * 4;
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@ -1432,11 +1432,11 @@ static int mp_decode_layer2(MPADecodeContext *s)
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if (b) {
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scale = scale_factors[ch][i][k];
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qindex = alloc_table[j+b];
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bits = quant_bits[qindex];
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bits = ff_mpa_quant_bits[qindex];
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if (bits < 0) {
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/* 3 values at the same time */
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v = get_bits(&s->gb, -bits);
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steps = quant_steps[qindex];
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steps = ff_mpa_quant_steps[qindex];
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s->sb_samples[ch][k * 12 + l + 0][i] =
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l2_unscale_group(steps, v % steps, scale);
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v = v / steps;
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@ -1470,11 +1470,11 @@ static int mp_decode_layer2(MPADecodeContext *s)
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scale0 = scale_factors[0][i][k];
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scale1 = scale_factors[1][i][k];
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qindex = alloc_table[j+b];
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bits = quant_bits[qindex];
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bits = ff_mpa_quant_bits[qindex];
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if (bits < 0) {
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/* 3 values at the same time */
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v = get_bits(&s->gb, -bits);
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steps = quant_steps[qindex];
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steps = ff_mpa_quant_steps[qindex];
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mant = v % steps;
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v = v / steps;
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s->sb_samples[0][k * 12 + l + 0][i] =
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