avcodec/dca: add new decoder based on libdcadec

1 files changed, 91 insertions, 0 deletions

diff --git a/libavcodec/dcadsp.h b/libavcodec/dcadsp.h
new file mode 100644
index 0000000000..d8acf37ab2
--- /dev/null
+++ b/libavcodec/dcadsp.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 foo86
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DCADSP_H
+#define AVCODEC_DCADSP_H
+
+#include "libavutil/common.h"
+
+#include "fft.h"
+#include "dcadct.h"
+#include "synth_filter.h"
+
+typedef struct DCADSPContext {
+    void (*decode_hf)(int32_t **dst,
+                      const int32_t *vq_index,
+                      const int8_t hf_vq[1024][32],
+                      int32_t scale_factors[32][2],
+                      intptr_t sb_start, intptr_t sb_end,
+                      intptr_t ofs, intptr_t len);
+
+    void (*decode_joint)(int32_t **dst, int32_t **src,
+                         const int32_t *scale_factors,
+                         intptr_t sb_start, intptr_t sb_end,
+                         intptr_t ofs, intptr_t len);
+
+    void (*lfe_fir_float[2])(float *pcm_samples, int32_t *lfe_samples,
+                             const float *filter_coeff, intptr_t npcmblocks);
+
+    void (*lfe_x96_float)(float *dst, const float *src,
+                          float *hist, intptr_t len);
+
+    void (*sub_qmf_float[2])(SynthFilterContext *synth,
+                             FFTContext *imdct,
+                             float *pcm_samples,
+                             int32_t **subband_samples_lo,
+                             int32_t **subband_samples_hi,
+                             float *hist1, int *offset, float *hist2,
+                             const float *filter_coeff, intptr_t npcmblocks,
+                             float scale);
+
+    void (*lfe_fir_fixed)(int32_t *pcm_samples, int32_t *lfe_samples,
+                          const int32_t *filter_coeff, intptr_t npcmblocks);
+
+    void (*lfe_x96_fixed)(int32_t *dst, const int32_t *src,
+                          int32_t *hist, intptr_t len);
+
+    void (*sub_qmf_fixed[2])(SynthFilterContext *synth,
+                             DCADCTContext *imdct,
+                             int32_t *pcm_samples,
+                             int32_t **subband_samples_lo,
+                             int32_t **subband_samples_hi,
+                             int32_t *hist1, int *offset, int32_t *hist2,
+                             const int32_t *filter_coeff, intptr_t npcmblocks);
+
+    void (*decor)(int32_t *dst, const int32_t *src, intptr_t coeff, intptr_t len);
+
+    void (*dmix_sub_xch)(int32_t *dst1, int32_t *dst2,
+                         const int32_t *src, intptr_t len);
+
+    void (*dmix_sub)(int32_t *dst, const int32_t *src, intptr_t coeff, intptr_t len);
+
+    void (*dmix_add)(int32_t *dst, const int32_t *src, intptr_t coeff, intptr_t len);
+
+    void (*dmix_scale)(int32_t *dst, intptr_t scale, intptr_t len);
+
+    void (*dmix_scale_inv)(int32_t *dst, intptr_t scale_inv, intptr_t len);
+
+    void (*assemble_freq_bands)(int32_t *dst, int32_t *src0, int32_t *src1,
+                                const int32_t *coeff, intptr_t len);
+} DCADSPContext;
+
+av_cold void ff_dcadsp_init(DCADSPContext *s);
+
+#endif