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wmavoice: remove unused or write-only variables.

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This commit is contained in:
Ronald S. Bultje 2016-12-22 09:02:32 -05:00
parent 4563a86f01
commit f3cd2302a9
1 changed files with 17 additions and 27 deletions
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44
libavcodec/wmavoice.c
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@ -104,26 +104,24 @@ static const struct frame_type_desc {
uint8_t dbl_pulses; ///< how many pulse vectors have pulse pairs
///< (rather than just one single pulse)
///< only if #fcb_type == #FCB_TYPE_EXC_PULSES
uint16_t frame_size; ///< the amount of bits that make up the block
///< data (per frame)
} frame_descs[17] = {
{ 1, 0, ACB_TYPE_NONE, FCB_TYPE_SILENCE, 0, 0 },
{ 2, 1, ACB_TYPE_NONE, FCB_TYPE_HARDCODED, 0, 28 },
{ 2, 1, ACB_TYPE_ASYMMETRIC, FCB_TYPE_AW_PULSES, 0, 46 },
{ 2, 1, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 2, 80 },
{ 2, 1, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 5, 104 },
{ 4, 2, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 0, 108 },
{ 4, 2, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 2, 132 },
{ 4, 2, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 5, 168 },
{ 2, 1, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 0, 64 },
{ 2, 1, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 2, 80 },
{ 2, 1, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 5, 104 },
{ 4, 2, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 0, 108 },
{ 4, 2, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 2, 132 },
{ 4, 2, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 5, 168 },
{ 8, 3, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 0, 176 },
{ 8, 3, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 2, 208 },
{ 8, 3, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 5, 256 }
{ 1, 0, ACB_TYPE_NONE, FCB_TYPE_SILENCE, 0 },
{ 2, 1, ACB_TYPE_NONE, FCB_TYPE_HARDCODED, 0 },
{ 2, 1, ACB_TYPE_ASYMMETRIC, FCB_TYPE_AW_PULSES, 0 },
{ 2, 1, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 2 },
{ 2, 1, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 5 },
{ 4, 2, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 0 },
{ 4, 2, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 2 },
{ 4, 2, ACB_TYPE_ASYMMETRIC, FCB_TYPE_EXC_PULSES, 5 },
{ 2, 1, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 0 },
{ 2, 1, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 2 },
{ 2, 1, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 5 },
{ 4, 2, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 0 },
{ 4, 2, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 2 },
{ 4, 2, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 5 },
{ 8, 3, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 0 },
{ 8, 3, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 2 },
{ 8, 3, ACB_TYPE_HAMMING, FCB_TYPE_EXC_PULSES, 5 }
};
/**
@ -160,10 +158,6 @@ typedef struct WMAVoiceContext {
int lsp_q_mode; ///< defines quantizer defaults [0, 1]
int lsp_def_mode; ///< defines different sets of LSP defaults
///< [0, 1]
int frame_lsp_bitsize; ///< size (in bits) of LSPs, when encoded
///< per-frame (independent coding)
int sframe_lsp_bitsize; ///< size (in bits) of LSPs, when encoded
///< per superframe (residual coding)
int min_pitch_val; ///< base value for pitch parsing code
int max_pitch_val; ///< max value + 1 for pitch parsing
@ -423,12 +417,8 @@ static av_cold int wmavoice_decode_init(AVCodecContext *ctx)
lsp16_flag = flags & 0x1000;
if (lsp16_flag) {
s->lsps = 16;
s->frame_lsp_bitsize = 34;
s->sframe_lsp_bitsize = 60;
} else {
s->lsps = 10;
s->frame_lsp_bitsize = 24;
s->sframe_lsp_bitsize = 48;
}
for (n = 0; n < s->lsps; n++)
s->prev_lsps[n] = M_PI * (n + 1.0) / (s->lsps + 1.0);