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1 /* | 1 /* |
2 * NellyMoser audio decoder | 2 * NellyMoser audio decoder |
3 * Copyright (c) 2007 a840bda5870ba11f19698ff6eb9581dfb0f95fa5, | 3 * Copyright (c) 2007 a840bda5870ba11f19698ff6eb9581dfb0f95fa5, |
4 * 539459aeb7d425140b62a3ec7dbf6dc8e408a306, and | 4 * 539459aeb7d425140b62a3ec7dbf6dc8e408a306, and |
5 * 520e17cd55896441042b14df2566a6eb610ed444 | 5 * 520e17cd55896441042b14df2566a6eb610ed444 |
6 * Copyright (c) 2007 Loic Minier <lool at dooz.org> | 6 * Copyright (c) 2007 Loic Minier <lool at dooz.org> |
7 * Benjamin Larsson | 7 * Benjamin Larsson |
8 * | 8 * |
9 * Permission is hereby granted, free of charge, to any person obtaining a | 9 * Permission is hereby granted, free of charge, to any person obtaining a |
10 * copy of this software and associated documentation files (the "Software"), | 10 * copy of this software and associated documentation files (the "Software"), |
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29 * @file libavcodec/nellymoserdec.c | 29 * @file libavcodec/nellymoserdec.c |
30 * The 3 alphanumeric copyright notices are md5summed they are from the original | 30 * The 3 alphanumeric copyright notices are md5summed they are from the original |
31 * implementors. The original code is available from http://code.google.com/p/ne
lly2pcm/ | 31 * implementors. The original code is available from http://code.google.com/p/ne
lly2pcm/ |
32 */ | 32 */ |
33 | 33 |
34 #include "nellymoser.h" | 34 #include "nellymoser.h" |
35 #include "libavutil/lfg.h" | 35 #include "libavutil/lfg.h" |
36 #include "libavutil/random_seed.h" | 36 #include "libavutil/random_seed.h" |
37 #include "avcodec.h" | 37 #include "avcodec.h" |
38 #include "dsputil.h" | 38 #include "dsputil.h" |
| 39 #include "fft.h" |
39 | 40 |
40 #define ALT_BITSTREAM_READER_LE | 41 #define ALT_BITSTREAM_READER_LE |
41 #include "get_bits.h" | 42 #include "get_bits.h" |
42 | 43 |
43 | 44 |
44 typedef struct NellyMoserDecodeContext { | 45 typedef struct NellyMoserDecodeContext { |
45 AVCodecContext* avctx; | 46 AVCodecContext* avctx; |
46 DECLARE_ALIGNED_16(float,float_buf)[NELLY_SAMPLES]; | 47 DECLARE_ALIGNED(16, float,float_buf)[NELLY_SAMPLES]; |
47 float state[128]; | 48 float state[128]; |
48 AVLFG random_state; | 49 AVLFG random_state; |
49 GetBitContext gb; | 50 GetBitContext gb; |
50 int add_bias; | 51 int add_bias; |
51 float scale_bias; | 52 float scale_bias; |
52 DSPContext dsp; | 53 DSPContext dsp; |
53 FFTContext imdct_ctx; | 54 FFTContext imdct_ctx; |
54 DECLARE_ALIGNED_16(float,imdct_out)[NELLY_BUF_LEN * 2]; | 55 DECLARE_ALIGNED(16, float,imdct_out)[NELLY_BUF_LEN * 2]; |
55 } NellyMoserDecodeContext; | 56 } NellyMoserDecodeContext; |
56 | 57 |
57 static void overlap_and_window(NellyMoserDecodeContext *s, float *state, float *
audio, float *a_in) | 58 static void overlap_and_window(NellyMoserDecodeContext *s, float *state, float *
audio, float *a_in) |
58 { | 59 { |
59 int bot, top; | 60 int bot, top; |
60 | 61 |
61 bot = 0; | 62 bot = 0; |
62 top = NELLY_BUF_LEN-1; | 63 top = NELLY_BUF_LEN-1; |
63 | 64 |
64 while (bot < NELLY_BUF_LEN) { | 65 while (bot < NELLY_BUF_LEN) { |
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202 CODEC_TYPE_AUDIO, | 203 CODEC_TYPE_AUDIO, |
203 CODEC_ID_NELLYMOSER, | 204 CODEC_ID_NELLYMOSER, |
204 sizeof(NellyMoserDecodeContext), | 205 sizeof(NellyMoserDecodeContext), |
205 decode_init, | 206 decode_init, |
206 NULL, | 207 NULL, |
207 decode_end, | 208 decode_end, |
208 decode_tag, | 209 decode_tag, |
209 .long_name = NULL_IF_CONFIG_SMALL("Nellymoser Asao"), | 210 .long_name = NULL_IF_CONFIG_SMALL("Nellymoser Asao"), |
210 }; | 211 }; |
211 | 212 |
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