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Side by Side Diff: patched-ffmpeg-mt/libavcodec/wmaenc.c

Issue 789004: ffmpeg roll of source to mar 9 version... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/ffmpeg/
Patch Set: '' Created 10 years, 9 months ago
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1 /* 1 /*
2 * WMA compatible encoder 2 * WMA compatible encoder
3 * Copyright (c) 2007 Michael Niedermayer 3 * Copyright (c) 2007 Michael Niedermayer
4 * 4 *
5 * This file is part of FFmpeg. 5 * This file is part of FFmpeg.
6 * 6 *
7 * FFmpeg is free software; you can redistribute it and/or 7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public 8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either 9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version. 10 * version 2.1 of the License, or (at your option) any later version.
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127 last_exp= *exp_param++; 127 last_exp= *exp_param++;
128 assert(last_exp-10 >= 0 && last_exp-10 < 32); 128 assert(last_exp-10 >= 0 && last_exp-10 < 32);
129 put_bits(&s->pb, 5, last_exp - 10); 129 put_bits(&s->pb, 5, last_exp - 10);
130 q+= *ptr++; 130 q+= *ptr++;
131 }else 131 }else
132 last_exp = 36; 132 last_exp = 36;
133 while (q < q_end) { 133 while (q < q_end) {
134 int exp = *exp_param++; 134 int exp = *exp_param++;
135 int code = exp - last_exp + 60; 135 int code = exp - last_exp + 60;
136 assert(code >= 0 && code < 120); 136 assert(code >= 0 && code < 120);
137 put_bits(&s->pb, ff_wma_scale_huffbits[code], ff_wma_scale_huffcodes[cod e]); 137 put_bits(&s->pb, ff_aac_scalefactor_bits[code], ff_aac_scalefactor_code[ code]);
138 /* XXX: use a table */ 138 /* XXX: use a table */
139 q+= *ptr++; 139 q+= *ptr++;
140 last_exp= exp; 140 last_exp= exp;
141 } 141 }
142 } 142 }
143 143
144 static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE], int total_gain){ 144 static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE], int total_gain){
145 int v, bsize, ch, coef_nb_bits, parse_exponents; 145 int v, bsize, ch, coef_nb_bits, parse_exponents;
146 float mdct_norm; 146 float mdct_norm;
147 int nb_coefs[MAX_CHANNELS]; 147 int nb_coefs[MAX_CHANNELS];
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401 "wmav2", 401 "wmav2",
402 CODEC_TYPE_AUDIO, 402 CODEC_TYPE_AUDIO,
403 CODEC_ID_WMAV2, 403 CODEC_ID_WMAV2,
404 sizeof(WMACodecContext), 404 sizeof(WMACodecContext),
405 encode_init, 405 encode_init,
406 encode_superframe, 406 encode_superframe,
407 ff_wma_end, 407 ff_wma_end,
408 .sample_fmts = (const enum SampleFormat[]){SAMPLE_FMT_S16,SAMPLE_FMT_NONE}, 408 .sample_fmts = (const enum SampleFormat[]){SAMPLE_FMT_S16,SAMPLE_FMT_NONE},
409 .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"), 409 .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
410 }; 410 };
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