/*
 * Copyright (C) 2026 Amlogic Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef _AUDIO_SDEC_H_
#define _AUDIO_SDEC_H_

#include "audio_buffer.h"

struct aml_audio_device;

/*
 * adev-owned surround decoder on the speaker path (TV/SBR only).
 * out_mask is always real_spk_layout_mask (or STEREO on 2ch speaker).
 * Called from aml_audio_pcm_output; identity when in_mask == out_mask.
 */

int audio_sdec_init(struct aml_audio_device *adev);
void audio_sdec_deinit(struct aml_audio_device *adev);

/*
 * Convert in -> speaker layout packed PCM.
 * Returns 0 and fills *out (may alias in on passthrough).
 * Returns -1 on skip/fail; *out is left unchanged.
 */
int audio_sdec_process(struct aml_audio_device *adev,
                       struct audio_buffer *in,
                       struct audio_buffer *out);

/*
 * Remap MS12 DAP raw packed PCM to acmod/lfe layout.
 * in->channel is packed stride (set by caller from MS12 2.4/2.8).
 * in->channel_mask must already be the destination acmod/lfe mask.
 * Returns 0 when *out is filled; -1 to keep the original buffer.
 */
int audio_sdec_remap_ms12_dap_raw(struct aml_audio_device *adev,
                                  struct audio_buffer *in,
                                  struct audio_buffer *out);

#endif /* _AUDIO_SDEC_H_ */