wmavoice: convert DCT-I/DST-I to lavu/tx
This is the very last user of any lavc transform code. This also *corrects* wmavoice decoding, as the previous DCT/DST transforms were incorrect, bringing it closer to Microsoft's own wmavoice decoder.
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@ -42,8 +42,6 @@
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#include "acelp_vectors.h"
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#include "acelp_filters.h"
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#include "lsp.h"
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#include "dct.h"
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#include "rdft.h"
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#include "sinewin.h"
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#define MAX_BLOCKS 8 ///< maximum number of blocks per frame
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@ -266,8 +264,8 @@ typedef struct WMAVoiceContext {
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*/
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AVTXContext *rdft, *irdft; ///< contexts for FFT-calculation in the
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av_tx_fn rdft_fn, irdft_fn; ///< postfilter (for denoise filter)
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DCTContext dct, dst; ///< contexts for phase shift (in Hilbert
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///< transform, part of postfilter)
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AVTXContext *dct, *dst; ///< contexts for phase shift (in Hilbert
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av_tx_fn dct_fn, dst_fn; ///< transform, part of postfilter)
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float sin[511], cos[511]; ///< 8-bit cosine/sine windows over [-pi,pi]
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///< range
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float postfilter_agc; ///< gain control memory, used in
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@ -391,10 +389,6 @@ static av_cold int wmavoice_decode_init(AVCodecContext *ctx)
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if (s->do_apf) {
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float scale = 1.0f;
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if ((ret = ff_dct_init (&s->dct, 6, DCT_I)) < 0 ||
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(ret = ff_dct_init (&s->dst, 6, DST_I)) < 0)
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return ret;
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ret = av_tx_init(&s->rdft, &s->rdft_fn, AV_TX_FLOAT_RDFT, 0, 1 << 7, &scale, 0);
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if (ret < 0)
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return ret;
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@ -403,6 +397,16 @@ static av_cold int wmavoice_decode_init(AVCodecContext *ctx)
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if (ret < 0)
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return ret;
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scale = 1.0 / (1 << 6);
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ret = av_tx_init(&s->dct, &s->dct_fn, AV_TX_FLOAT_DCT_I, 0, 1 << 6, &scale, 0);
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if (ret < 0)
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return ret;
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scale = 1.0 / (1 << 6);
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ret = av_tx_init(&s->dst, &s->dst_fn, AV_TX_FLOAT_DST_I, 0, 1 << 6, &scale, 0);
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if (ret < 0)
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return ret;
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ff_sine_window_init(s->cos, 256);
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memcpy(&s->sin[255], s->cos, 256 * sizeof(s->cos[0]));
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for (n = 0; n < 255; n++) {
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@ -612,6 +616,7 @@ static void calc_input_response(WMAVoiceContext *s, float *lpcs_src,
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float irange, angle_mul, gain_mul, range, sq;
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LOCAL_ALIGNED_32(float, coeffs, [0x82]);
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LOCAL_ALIGNED_32(float, lpcs, [0x82]);
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LOCAL_ALIGNED_32(float, lpcs_dct, [0x82]);
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int n, idx;
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memcpy(coeffs, coeffs_dst, 0x82*sizeof(float));
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@ -662,8 +667,8 @@ static void calc_input_response(WMAVoiceContext *s, float *lpcs_src,
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* is a sine input) by doing a phase shift (in theory, H(sin())=cos()).
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* Hilbert_Transform(RDFT(x)) = Laplace_Transform(x), which calculates the
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* "moment" of the LPCs in this filter. */
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s->dct.dct_calc(&s->dct, lpcs);
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s->dst.dct_calc(&s->dst, lpcs);
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s->dct_fn(s->dct, lpcs_dct, lpcs, sizeof(float));
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s->dst_fn(s->dst, lpcs, lpcs_dct, sizeof(float));
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/* Split out the coefficient indexes into phase/magnitude pairs */
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idx = 255 + av_clip(lpcs[64], -255, 255);
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@ -2003,8 +2008,8 @@ static av_cold int wmavoice_decode_end(AVCodecContext *ctx)
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if (s->do_apf) {
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av_tx_uninit(&s->rdft);
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av_tx_uninit(&s->irdft);
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ff_dct_end(&s->dct);
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ff_dct_end(&s->dst);
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av_tx_uninit(&s->dct);
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av_tx_uninit(&s->dst);
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}
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return 0;
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@ -20,17 +20,20 @@ fate-wmapro: $(FATE_WMAPRO-yes)
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FATE_WMAVOICE-$(call DEMDEC, ASF, WMAVOICE) += fate-wmavoice-7k
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fate-wmavoice-7k: CMD = pcm -i $(TARGET_SAMPLES)/wmavoice/streaming_CBR-7K.wma
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fate-wmavoice-7k: REF = $(SAMPLES)/wmavoice/streaming_CBR-7K.pcm
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fate-wmavoice-7k: REF = $(SAMPLES)/wmavoice/streaming_CBR-7K_ref.pcm
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fate-wmavoice-7k: CMP_TARGET = 1368.61
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fate-wmavoice-7k: FUZZ = 3
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FATE_WMAVOICE-$(call DEMDEC, ASF, WMAVOICE) += fate-wmavoice-11k
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fate-wmavoice-11k: CMD = pcm -i $(TARGET_SAMPLES)/wmavoice/streaming_CBR-11K.wma
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fate-wmavoice-11k: REF = $(SAMPLES)/wmavoice/streaming_CBR-11K.pcm
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fate-wmavoice-11k: REF = $(SAMPLES)/wmavoice/streaming_CBR-11K_ref.pcm
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fate-wmavoice-11k: CMP_TARGET = 965.24
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fate-wmavoice-11k: FUZZ = 3
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FATE_WMAVOICE-$(call DEMDEC, ASF, WMAVOICE) += fate-wmavoice-19k
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fate-wmavoice-19k: CMD = pcm -i $(TARGET_SAMPLES)/wmavoice/streaming_CBR-19K.wma
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fate-wmavoice-19k: REF = $(SAMPLES)/wmavoice/streaming_CBR-19K.pcm
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fate-wmavoice-19k: REF = $(SAMPLES)/wmavoice/streaming_CBR-19K_ref.pcm
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fate-wmavoice-19k: CMP_TARGET = 689.33
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fate-wmavoice-19k: FUZZ = 3
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$(FATE_WMAVOICE-yes): CMP = stddev
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