+++ /dev/null
-/*
- * Copyright (C) 2010-2013 Team XBMC
- * http://xbmc.org
- *
- * This Program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This Program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with XBMC; see the file COPYING. If not, see
- * <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "AEWAVLoader.h"
-
-
-#include "system.h"
-#include "utils/log.h"
-#include "utils/EndianSwap.h"
-#include "filesystem/File.h"
-#include "URL.h"
-#include <samplerate.h>
-
-#include "AEConvert.h"
-#include "AEUtil.h"
-#include "AERemap.h"
-
-#ifdef TARGET_WINDOWS
-#pragma comment(lib, "libsamplerate-0.lib")
-#endif
-
-typedef struct
-{
- char chunk_id[4];
- uint32_t chunksize;
-} WAVE_CHUNK;
-
-CAEWAVLoader::CAEWAVLoader() :
- m_valid (false),
- m_sampleRate (0 ),
- m_outputSampleRate (0 ),
- m_frameCount (0 ),
- m_outputFrameCount (0 ),
- m_sampleCount (0 ),
- m_outputSampleCount (0 ),
- m_samples (NULL ),
- m_outputSamples (NULL )
-{
-}
-
-CAEWAVLoader::~CAEWAVLoader()
-{
- UnLoad();
-}
-
-bool CAEWAVLoader::Load(const std::string &filename)
-{
- UnLoad();
-
- m_filename = filename;
-
- XFILE::CFile file;
- if (!file.Open(m_filename))
- {
- CLog::Log(LOGERROR, "CAEWAVLoader::Initialize - Failed to create loader: %s", m_filename.c_str());
- return false;
- }
-
- struct __stat64 st;
- if (file.Stat(&st) < 0)
- {
- CLog::Log(LOGERROR, "CAEWAVLoader::Initialize - Failed to stat file: %s", m_filename.c_str());
- return false;
- }
-
- bool isRIFF = false;
- bool isWAVE = false;
- bool isFMT = false;
- bool isPCM = false;
- bool isDATA = false;
-
- uint32_t sampleRate;
- uint32_t byteRate;
- uint16_t blockAlign;
- uint16_t bitsPerSample;
-
- WAVE_CHUNK chunk;
- while (file.Read(&chunk, sizeof(chunk)) == sizeof(chunk))
- {
- chunk.chunksize = Endian_SwapLE32(chunk.chunksize);
-
- /* if its the RIFF header */
- if (!isRIFF && memcmp(chunk.chunk_id, "RIFF", 4) == 0)
- {
- isRIFF = true;
-
- /* work around invalid chunksize, I have seen this in one file so far (shutter.wav) */
- if (chunk.chunksize == st.st_size)
- chunk.chunksize -= 8;
-
- /* sanity check on the chunksize */
- if (chunk.chunksize > st.st_size - 8)
- {
- CLog::Log(LOGERROR, "CAEWAVLoader::Initialize - Corrupt WAV header: %s", m_filename.c_str());
- file.Close();
- return false;
- }
-
- /* we only support WAVE files */
- char format[4];
- if (file.Read(&format, 4) != 4)
- break;
- isWAVE = memcmp(format, "WAVE", 4) == 0;
- if (!isWAVE)
- break;
- }
- /* if its the fmt section */
- else if (!isFMT && memcmp(chunk.chunk_id, "fmt ", 4) == 0)
- {
- isFMT = true;
- if (chunk.chunksize < 16)
- break;
- uint16_t format;
- if (file.Read(&format, sizeof(format)) != sizeof(format))
- break;
- format = Endian_SwapLE16(format);
- if (format != WAVE_FORMAT_PCM)
- break;
-
- uint16_t channelCount;
- if (file.Read(&channelCount , 2) != 2)
- break;
- if (file.Read(&sampleRate , 4) != 4)
- break;
- if (file.Read(&byteRate , 4) != 4)
- break;
- if (file.Read(&blockAlign , 2) != 2)
- break;
- if (file.Read(&bitsPerSample, 2) != 2)
- break;
-
- channelCount = Endian_SwapLE16(channelCount);
- /* TODO: support > 2 channel count */
- if (channelCount > 2)
- break;
-
- static AEChannel layouts[][3] = {
- {AE_CH_FC, AE_CH_NULL},
- {AE_CH_FL, AE_CH_FR, AE_CH_NULL}
- };
-
- m_channels = layouts[channelCount - 1];
- m_sampleRate = Endian_SwapLE32(sampleRate );
- byteRate = Endian_SwapLE32(byteRate );
- blockAlign = Endian_SwapLE16(blockAlign );
- bitsPerSample = Endian_SwapLE16(bitsPerSample);
- isPCM = true;
-
- if (chunk.chunksize > 16)
- file.Seek(chunk.chunksize - 16, SEEK_CUR);
- }
- /* if we have the PCM info and its the DATA section */
- else if (isPCM && !isDATA && memcmp(chunk.chunk_id, "data", 4) == 0)
- {
- unsigned int bytesPerSample = bitsPerSample >> 3;
- m_sampleCount = chunk.chunksize / bytesPerSample;
- m_frameCount = m_sampleCount / m_channels.Count();
- isDATA = m_frameCount > 0;
-
- /* get the conversion function */
- CAEConvert::AEConvertToFn convertFn;
- switch (bitsPerSample)
- {
- case 8 : convertFn = CAEConvert::ToFloat(AE_FMT_U8 ); break;
- case 16: convertFn = CAEConvert::ToFloat(AE_FMT_S16LE); break;
- case 32: convertFn = CAEConvert::ToFloat(AE_FMT_S32LE); break;
- default:
- CLog::Log(LOGERROR, "CAEWAVLoader::Initialize - Unsupported data format in wav: %s", m_filename.c_str());
- file.Close();
- return false;
- }
-
- /* read in each sample */
- unsigned int size = bytesPerSample * m_sampleCount;
- m_samples = (float* )_aligned_malloc(sizeof(float) * m_sampleCount, 16);
- uint8_t *raw = (uint8_t *)_aligned_malloc(size, 16);
- if (file.Read(raw, size) != size)
- {
- CLog::Log(LOGERROR, "CAEWAVLoader::Initialize - WAV data shorter then expected: %s", m_filename.c_str());
- _aligned_free(m_samples);
- _aligned_free(raw);
- m_samples = NULL;
- file.Close();
- return false;
- }
-
- /* convert the samples to float */
- convertFn(raw, m_sampleCount, m_samples);
- _aligned_free(raw);
- }
- else
- {
- /* skip any unknown sections */
- file.Seek(chunk.chunksize, SEEK_CUR);
- }
- }
-
- if (!isRIFF || !isWAVE || !isFMT || !isPCM || !isDATA || m_sampleCount == 0)
- {
- CLog::Log(LOGERROR, "CAEWAVLoader::Initialize - Invalid, or un-supported WAV file: %s", m_filename.c_str());
- file.Close();
- return false;
- }
-
- /* close the file as we have the samples now */
- file.Close();
-
- m_outputChannels = m_channels;
- m_outputSampleRate = m_sampleRate;
- m_outputSamples = m_samples;
- m_outputSampleCount = m_sampleCount;
- m_outputFrameCount = m_frameCount;
-
- CLog::Log(LOGINFO, "CAEWAVLoader::Initialize - Sound Loaded: %s", m_filename.c_str());
- m_valid = true;
- return true;
-}
-
-bool CAEWAVLoader::Initialize(unsigned int resampleRate, CAEChannelInfo channelLayout, enum AEStdChLayout stdChLayout/* = AE_CH_LAYOUT_INVALID */)
-{
- if (!m_valid)
- {
- CLog::Log(LOGERROR, "CAEWAVLoader::Initialize - File has not been loaded");
- return false;
- }
-
- DeInitialize();
-
- /* if the sample rates do not match */
- if (m_sampleRate != resampleRate)
- {
- unsigned int space = (unsigned int)((((float)m_sampleCount / (float)m_sampleRate) * (float)resampleRate) * 2.0f);
- SRC_DATA data;
- data.data_in = m_samples;
- data.input_frames = m_frameCount;
- data.data_out = (float*)_aligned_malloc(sizeof(float) * space, 16);
- data.output_frames = space / m_channels.Count();
- data.src_ratio = (double)resampleRate / (double)m_sampleRate;
-#ifdef TARGET_DARWIN_IOS
- if (src_simple(&data, SRC_SINC_FASTEST, m_channels.Count()) != 0)
-#else
- if (src_simple(&data, SRC_SINC_MEDIUM_QUALITY, m_channels.Count()) != 0)
-#endif
- {
- CLog::Log(LOGERROR, "CAEWAVLoader::Initialize - Failed to resample audio: %s", m_filename.c_str());
- _aligned_free(data.data_out);
- return false;
- }
-
- if (m_outputSamples != m_samples)
- _aligned_free(m_outputSamples);
-
- m_outputSamples = data.data_out;
- m_outputFrameCount = data.output_frames_gen;
- m_outputSampleCount = data.output_frames_gen * m_channels.Count();
- m_outputSampleRate = resampleRate;
- }
- else
- {
- m_outputSamples = m_samples;
- m_outputFrameCount = m_frameCount;
- m_outputSampleCount = m_sampleCount;
- m_outputSampleRate = m_sampleRate;
- }
-
- /* if the channel layouts do not match */
- if (m_channels != channelLayout)
- {
- CAERemap remap;
- if (!remap.Initialize(m_channels, channelLayout, false, false, stdChLayout))
- return false;
-
- /* adjust the output format parameters */
- m_outputSampleCount = m_outputFrameCount * channelLayout.Count();
- m_outputChannels = channelLayout;
-
- float *remapped = (float*)_aligned_malloc(sizeof(float) * m_outputSampleCount, 16);
- remap.Remap(m_outputSamples, remapped, m_outputFrameCount);
-
- /* assign the remapped buffer */
- if (m_outputSamples != m_samples)
- _aligned_free(m_outputSamples);
- m_outputSamples = remapped;
- }
-
- return true;
-}
-
-void CAEWAVLoader::UnLoad()
-{
- DeInitialize();
-
- _aligned_free(m_samples);
- m_samples = NULL;
- m_sampleCount = 0;
- m_frameCount = 0;
- m_channels.Reset();
-
- m_outputSamples = NULL;
- m_outputSampleCount = 0;
- m_outputFrameCount = 0;
- m_outputChannels.Reset();
-}
-
-void CAEWAVLoader::DeInitialize()
-{
- /* only free m_outputSamples if it is a seperate buffer */
- if (m_outputSamples != m_samples)
- _aligned_free(m_outputSamples);
-
- m_outputSamples = m_samples;
- m_outputSampleCount = m_sampleCount;
- m_outputFrameCount = m_frameCount;
- m_outputChannels = m_channels;
-}
-
-CAEChannelInfo CAEWAVLoader::GetChannelLayout()
-{
- return m_outputChannels;
-}
-
-unsigned int CAEWAVLoader::GetSampleRate()
-{
- return m_outputSampleRate;
-}
-
-unsigned int CAEWAVLoader::GetSampleCount()
-{
- return m_outputSampleCount;
-}
-
-unsigned int CAEWAVLoader::GetFrameCount()
-{
- return m_outputFrameCount;
-}
-
-float* CAEWAVLoader::GetSamples()
-{
- if (!m_valid || m_outputSamples == NULL)
- return NULL;
-
- return m_outputSamples;
-}
-
-bool CAEWAVLoader::IsCompatible(const unsigned int sampleRate, const CAEChannelInfo &channelInfo)
-{
- return (
- m_outputSampleRate == sampleRate &&
- m_outputChannels == channelInfo
- );
-}
+++ /dev/null
-#pragma once
-/*
- * Copyright (C) 2010-2013 Team XBMC
- * http://xbmc.org
- *
- * This Program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This Program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with XBMC; see the file COPYING. If not, see
- * <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "utils/StdString.h"
-#include "AEAudioFormat.h"
-
-class CAEWAVLoader
-{
-public:
- CAEWAVLoader();
- ~CAEWAVLoader();
-
- /**
- * Load a WAV file into memory
- * @param filename The filename to load
- * @return true on success
- */
- bool Load(const std::string &filename);
-
- /**
- * Unload and release the samples loaded by CAWEAVLoader::Load
- */
- void UnLoad();
-
- /**
- * Initialize the loaded file for the required output format
- * @param sampleRate The desired output sample rate
- * @param channelLayout The desired output channel layout
- * @param stdChLayout The channels that are actually used in the layout
- */
- bool Initialize(unsigned int resampleRate, CAEChannelInfo channelLayout, enum AEStdChLayout stdChLayout = AE_CH_LAYOUT_INVALID);
-
- /**
- * DeInitialize the remapped/resampled output
- */
- void DeInitialize();
-
- /**
- * Returns if the current sample buffer is valid
- * @return true if the current sample buffer is valid
- */
- bool IsValid() { return m_valid; }
-
- CAEChannelInfo GetChannelLayout();
- unsigned int GetSampleRate();
- unsigned int GetSampleCount();
- unsigned int GetFrameCount();
- float* GetSamples();
- bool IsCompatible(const unsigned int sampleRate, const CAEChannelInfo &channelInfo);
-
-private:
- std::string m_filename;
- bool m_valid;
-
- CAEChannelInfo m_channels , m_outputChannels;
- unsigned int m_sampleRate , m_outputSampleRate;
- unsigned int m_frameCount , m_outputFrameCount;
- unsigned int m_sampleCount , m_outputSampleCount;
- float *m_samples , *m_outputSamples;
-};
-
projects / vuplus_xbmc / commitdiff