Searched refs:lsf (Results 1 - 11 of 11) sorted by relevance

/netgear-WNDR4500-V1.0.1.40_1.0.68/ap/gpl/minidlna/ffmpeg-0.5.1/libavcodec/
H A Dmpegaudio.c31 int ff_mpa_l2_select_table(int bitrate, int nb_channels, int freq, int lsf) argument
36 if (!lsf) {
H A Dmp3_header_decompress_bsf.c32 int lsf, mpeg25, bitrate_index, frame_size; local
49 lsf = sample_rate < (24000+32000)/2;
52 sample_rate= ff_mpa_freq_tab[sample_rate_index] >> (lsf + mpeg25); //in case sample rate is a little off
55 frame_size = ff_mpa_bitrate_tab[lsf][2][bitrate_index>>1];
56 frame_size = (frame_size * 144000) / (sample_rate << lsf) + (bitrate_index&1);
77 if(lsf){
H A Dmpegaudiodecheader.c38 s->lsf = (header & (1<<19)) ? 0 : 1;
41 s->lsf = 1;
48 sample_rate = ff_mpa_freq_tab[sample_rate_index] >> (s->lsf + mpeg25);
49 sample_rate_index += 3 * (s->lsf + mpeg25);
69 frame_size = ff_mpa_bitrate_tab[s->lsf][s->layer - 1][bitrate_index];
82 frame_size = (frame_size * 144000) / (sample_rate << s->lsf);
H A Dlsp.h45 * \param lsf normalized LSF coefficients (0 <= (2.13) < 0x2000 * PI)
48 * \remark It is safe to pass the same array into the lsf and lsp parameters.
50 void ff_acelp_lsf2lsp(int16_t *lsp, const int16_t *lsf, int lp_order);
H A Dmpegaudio.h50 /* header + layer + bitrate + freq + lsf/mpeg25 */
103 int lsf;
138 int ff_mpa_l2_select_table(int bitrate, int nb_channels, int freq, int lsf);
H A Dlsp.c49 void ff_acelp_lsf2lsp(int16_t *lsp, const int16_t *lsf, int lp_order) argument
53 /* Convert LSF to LSP, lsp=cos(lsf) */
56 lsp[i] = ff_cos(lsf[i] * 20861 >> 15); // divide by PI and (0,13) -> (0,14)
H A Dmpegaudioenc.c44 int lsf; /* 1 if mpeg2 low bitrate selected */ member in struct:MpegAudioContext
87 s->lsf = 0;
92 s->lsf = 1;
104 if (ff_mpa_bitrate_tab[s->lsf][1][i] == bitrate)
123 table = ff_mpa_l2_select_table(bitrate, s->nb_channels, freq, s->lsf);
625 put_bits(p, 1, 1 - s->lsf); /* 1 = mpeg1 ID, 0 = mpeg2 lsf ID */
H A Dmpegaudio_parser.c40 /* header + layer + bitrate + freq + lsf/mpeg25 */
70 if (s->lsf)
H A Dmpegaudiodec.c34 * - test lsf / mpeg25 extensively.
1197 s->sample_rate, s->lsf);
1659 if (!s->lsf) {
1952 if (s->lsf) {
1986 if (s->lsf)
2020 if (!s->lsf)
2060 if (!s->lsf) {
2211 s->avctx->frame_size = s->lsf ? 576 : 1152;
/netgear-WNDR4500-V1.0.1.40_1.0.68/ap/gpl/minidlna/ffmpeg-0.5.1/libavformat/
H A Dnutenc.c47 int lsf, mpeg25, sample_rate_index, bitrate_index, frame_size; local
51 lsf = sample_rate < (24000+32000)/2;
53 sample_rate <<= lsf + mpeg25;
58 sample_rate= ff_mpa_freq_tab[sample_rate_index] >> (lsf + mpeg25);
61 frame_size = ff_mpa_bitrate_tab[lsf][layer-1][bitrate_index>>1];
62 frame_size = (frame_size * 144000) / (sample_rate << lsf) + (bitrate_index&1);
68 header |= (!lsf)<<19;
H A Dmp3.c420 url_fseek(s->pb, xing_offtbl[c.lsf == 1][c.nb_channels == 1], SEEK_CUR);
446 spf = c.lsf ? 576 : 1152; /* Samples per frame, layer 3 */

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