// Copyright 2019 Fuzhou Rockchip Electronics Co., Ltd. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "sound.h"
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#include <string.h>
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#include "key_string.h"
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#include "media_type.h"
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#include "utils.h"
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static const struct SampleFormatEntry {
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SampleFormat fmt;
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const char* fmt_str;
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} sample_format_string_map[] = {
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{SAMPLE_FMT_U8, AUDIO_PCM_U8}, {SAMPLE_FMT_S16, AUDIO_PCM_S16}, {SAMPLE_FMT_S32, AUDIO_PCM_S32},
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{SAMPLE_FMT_FLT, AUDIO_PCM_FLT}, {SAMPLE_FMT_U8P, AUDIO_PCM_U8P}, {SAMPLE_FMT_S16P, AUDIO_PCM_S16P},
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{SAMPLE_FMT_S32P, AUDIO_PCM_S32P}, {SAMPLE_FMT_FLTP, AUDIO_PCM_FLTP}, {SAMPLE_FMT_G711A, AUDIO_G711A},
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{SAMPLE_FMT_G711U, AUDIO_G711U}, {SAMPLE_FMT_FLTP, AUDIO_AAC},
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};
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const char* SampleFmtToString(SampleFormat fmt)
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{
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FIND_ENTRY_TARGET(fmt, sample_format_string_map, fmt, fmt_str)
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return nullptr;
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}
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SampleFormat StringToSampleFmt(const char* fmt_str)
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{
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FIND_ENTRY_TARGET_BY_STRCMP(fmt_str, sample_format_string_map, fmt_str, fmt)
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return SAMPLE_FMT_NONE;
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}
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bool SampleInfoIsValid(const SampleInfo& sample_info)
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{
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return (sample_info.fmt != SAMPLE_FMT_NONE) && (sample_info.channels > 0) && (sample_info.sample_rate > 0);
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}
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size_t GetSampleSize(const SampleInfo& sample_info)
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{
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size_t sample_size = sample_info.channels;
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switch (sample_info.fmt) {
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case SAMPLE_FMT_U8:
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case SAMPLE_FMT_U8P:
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case SAMPLE_FMT_G711A:
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case SAMPLE_FMT_G711U:
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return sample_size;
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case SAMPLE_FMT_S16:
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case SAMPLE_FMT_S16P:
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return sample_size << 1;
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case SAMPLE_FMT_S32:
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case SAMPLE_FMT_S32P:
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case SAMPLE_FMT_FLT:
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case SAMPLE_FMT_FLTP:
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return sample_size << 2;
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default:
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return 0;
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}
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}
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namespace easymedia
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{
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bool ParseSampleInfoFromMap(std::map<std::string, std::string>& params, SampleInfo& si)
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{
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std::string value;
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CHECK_EMPTY(value, params, KEY_INPUTDATATYPE)
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si.fmt = StringToSampleFmt(value.c_str());
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if (si.fmt == SAMPLE_FMT_NONE) {
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LOG("unsupport sample fmt %s\n", value.c_str());
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return false;
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}
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CHECK_EMPTY(value, params, KEY_CHANNELS)
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si.channels = std::stoi(value);
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CHECK_EMPTY(value, params, KEY_SAMPLE_RATE)
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si.sample_rate = std::stoi(value);
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CHECK_EMPTY(value, params, KEY_FRAMES)
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si.nb_samples = std::stoi(value);
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return true;
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}
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std::string to_param_string(const SampleInfo& si)
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{
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std::string s;
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const char* fmt = SampleFmtToString(si.fmt);
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if (!fmt) {
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return s;
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}
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PARAM_STRING_APPEND(s, KEY_INPUTDATATYPE, fmt);
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PARAM_STRING_APPEND_TO(s, KEY_CHANNELS, si.channels);
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PARAM_STRING_APPEND_TO(s, KEY_SAMPLE_RATE, si.sample_rate);
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PARAM_STRING_APPEND_TO(s, KEY_FRAMES, si.nb_samples);
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return s;
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}
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} // namespace easymedia
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