mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-12-12 14:51:04 -05:00
726 lines
18 KiB
C++
726 lines
18 KiB
C++
/*
|
|
* SampleFormatMP3.cpp
|
|
* -------------------
|
|
* Purpose: MP3 sample import.
|
|
* Notes :
|
|
* Authors: OpenMPT Devs
|
|
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
|
|
*/
|
|
|
|
|
|
#include "stdafx.h"
|
|
#include "Sndfile.h"
|
|
#ifndef MODPLUG_NO_FILESAVE
|
|
#include "../common/mptFileIO.h"
|
|
#endif
|
|
#include "../common/misc_util.h"
|
|
#include "Tagging.h"
|
|
#include "Loaders.h"
|
|
#include "../common/FileReader.h"
|
|
#include "modsmp_ctrl.h"
|
|
#include "openmpt/soundbase/Copy.hpp"
|
|
#include "../soundlib/ModSampleCopy.h"
|
|
#include "../common/ComponentManager.h"
|
|
#ifdef MPT_ENABLE_MP3_SAMPLES
|
|
#include "MPEGFrame.h"
|
|
#endif // MPT_ENABLE_MP3_SAMPLES
|
|
#if defined(MPT_WITH_MINIMP3)
|
|
#include "mpt/base/alloc.hpp"
|
|
#endif // MPT_WITH_MINIMP3
|
|
|
|
#if defined(MPT_WITH_MINIMP3)
|
|
#include <minimp3/minimp3.h>
|
|
#endif // MPT_WITH_MINIMP3
|
|
|
|
// mpg123 must be last because of mpg123 large file support insanity
|
|
#if defined(MPT_WITH_MPG123)
|
|
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <sys/types.h>
|
|
|
|
#if MPT_OS_OPENBSD
|
|
// This is kind-of a hack.
|
|
// See <https://sourceforge.net/p/mpg123/bugs/330/>.
|
|
#if MPT_COMPILER_CLANG
|
|
#pragma clang diagnostic push
|
|
#pragma clang diagnostic ignored "-Wreserved-id-macro"
|
|
#endif
|
|
#ifdef _FILE_OFFSET_BITS
|
|
#undef _FILE_OFFSET_BITS
|
|
#endif
|
|
#if MPT_COMPILER_CLANG
|
|
#pragma clang diagnostic pop
|
|
#endif
|
|
#endif
|
|
#include <mpg123.h>
|
|
|
|
#endif
|
|
|
|
|
|
OPENMPT_NAMESPACE_BEGIN
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// MP3 Samples
|
|
|
|
#if defined(MPT_WITH_MPG123)
|
|
|
|
typedef off_t mpg123_off_t;
|
|
|
|
typedef size_t mpg123_size_t;
|
|
|
|
// Check for exactly _MSC_VER as libmpg123 does, in order to also catch clang-cl.
|
|
#ifdef _MSC_VER
|
|
// ssize_t definition in libmpg123.h.in should never have existed at all.
|
|
// It got removed from libmpg23.h.in after 1.28.0 and before 1.28.1.
|
|
typedef ptrdiff_t mpg123_ssize_t;
|
|
#else
|
|
typedef ssize_t mpg123_ssize_t;
|
|
#endif
|
|
|
|
class ComponentMPG123
|
|
: public ComponentBuiltin
|
|
{
|
|
MPT_DECLARE_COMPONENT_MEMBERS(ComponentMPG123, "")
|
|
|
|
public:
|
|
|
|
static mpg123_ssize_t FileReaderRead(void *fp, void *buf, mpg123_size_t count)
|
|
{
|
|
FileReader &file = *static_cast<FileReader *>(fp);
|
|
std::size_t readBytes = std::min(count, static_cast<size_t>(file.BytesLeft()));
|
|
file.ReadRaw(mpt::span(mpt::void_cast<std::byte*>(buf), readBytes));
|
|
return readBytes;
|
|
}
|
|
static mpg123_off_t FileReaderLSeek(void *fp, mpg123_off_t offset, int whence)
|
|
{
|
|
FileReader &file = *static_cast<FileReader *>(fp);
|
|
FileReader::off_t oldpos = file.GetPosition();
|
|
if(whence == SEEK_CUR) file.Seek(file.GetPosition() + offset);
|
|
else if(whence == SEEK_END) file.Seek(file.GetLength() + offset);
|
|
else file.Seek(offset);
|
|
MPT_MAYBE_CONSTANT_IF(!mpt::in_range<mpg123_off_t>(file.GetPosition()))
|
|
{
|
|
file.Seek(oldpos);
|
|
return static_cast<mpg123_off_t>(-1);
|
|
}
|
|
return static_cast<mpg123_off_t>(file.GetPosition());
|
|
}
|
|
|
|
public:
|
|
ComponentMPG123()
|
|
: ComponentBuiltin()
|
|
{
|
|
return;
|
|
}
|
|
bool DoInitialize() override
|
|
{
|
|
if(mpg123_init() != 0)
|
|
{
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
virtual ~ComponentMPG123()
|
|
{
|
|
if(IsAvailable())
|
|
{
|
|
mpg123_exit();
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
static mpt::ustring ReadMPG123String(const mpg123_string &str)
|
|
{
|
|
mpt::ustring result;
|
|
if(!str.p)
|
|
{
|
|
return result;
|
|
}
|
|
if(str.fill < 1)
|
|
{
|
|
return result;
|
|
}
|
|
result = mpt::ToUnicode(mpt::Charset::UTF8, std::string(str.p, str.p + str.fill - 1));
|
|
return result;
|
|
}
|
|
|
|
static mpt::ustring ReadMPG123String(const mpg123_string *str)
|
|
{
|
|
mpt::ustring result;
|
|
if(!str)
|
|
{
|
|
return result;
|
|
}
|
|
result = ReadMPG123String(*str);
|
|
return result;
|
|
}
|
|
|
|
template <std::size_t N>
|
|
static mpt::ustring ReadMPG123String(const char (&str)[N])
|
|
{
|
|
return mpt::ToUnicode(mpt::Charset::ISO8859_1, mpt::String::ReadBuf(mpt::String::spacePadded, str));
|
|
}
|
|
|
|
#endif // MPT_WITH_MPG123
|
|
|
|
|
|
#if defined(MPT_WITH_MINIMP3)
|
|
#if MPT_COMPILER_GCC
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wframe-larger-than=16000"
|
|
#endif // MPT_COMPILER_GCC
|
|
#if MPT_CLANG_AT_LEAST(13,0,0)
|
|
#pragma clang diagnostic push
|
|
#pragma clang diagnostic ignored "-Wframe-larger-than"
|
|
#endif // MPT_COMPILER_CLANG
|
|
static MPT_NOINLINE int mp3dec_decode_frame_no_inline(mp3dec_t *dec, const uint8_t *mp3, int mp3_bytes, mp3d_sample_t *pcm, mp3dec_frame_info_t *info)
|
|
{
|
|
return mp3dec_decode_frame(dec, mp3, mp3_bytes, pcm, info);
|
|
}
|
|
#if MPT_CLANG_AT_LEAST(13,0,0)
|
|
#pragma clang diagnostic pop
|
|
#endif // MPT_COMPILER_CLANG
|
|
#if MPT_COMPILER_GCC
|
|
#pragma GCC diagnostic pop
|
|
#endif // MPT_COMPILER_GCC
|
|
#endif // MPT_WITH_MINIMP3
|
|
|
|
|
|
bool CSoundFile::ReadMP3Sample(SAMPLEINDEX sample, FileReader &file, bool raw, bool mo3Decode)
|
|
{
|
|
#if defined(MPT_WITH_MPG123) || defined(MPT_WITH_MINIMP3)
|
|
|
|
// Check file for validity, or else mpg123 will happily munch many files that start looking vaguely resemble an MPEG stream mid-file.
|
|
file.Rewind();
|
|
while(file.CanRead(4))
|
|
{
|
|
uint8 magic[3];
|
|
file.ReadArray(magic);
|
|
|
|
if(!memcmp(magic, "ID3", 3))
|
|
{
|
|
// Skip ID3 tags
|
|
uint8 header[7];
|
|
file.ReadArray(header);
|
|
|
|
uint32 size = 0;
|
|
for(int i = 3; i < 7; i++)
|
|
{
|
|
if(header[i] & 0x80)
|
|
return false;
|
|
size = (size << 7) | header[i];
|
|
}
|
|
file.Skip(size);
|
|
} else if(!memcmp(magic, "APE", 3) && file.ReadMagic("TAGEX"))
|
|
{
|
|
// Skip APE tags
|
|
uint32 size = file.ReadUint32LE();
|
|
file.Skip(16 + size);
|
|
} else if(!memcmp(magic, "\x00\x00\x00", 3) || !memcmp(magic, "\xFF\x00\x00", 3))
|
|
{
|
|
// Some MP3 files are padded with zeroes...
|
|
} else if(magic[0] == 0)
|
|
{
|
|
// This might be some padding, followed by an MPEG header, so try again.
|
|
file.SkipBack(2);
|
|
} else if(MPEGFrame::IsMPEGHeader(magic))
|
|
{
|
|
// This is what we want!
|
|
break;
|
|
} else
|
|
{
|
|
// This, on the other hand, isn't.
|
|
return false;
|
|
}
|
|
}
|
|
|
|
#endif // MPT_WITH_MPG123 || MPT_WITH_MINIMP3
|
|
|
|
#if defined(MPT_WITH_MPG123)
|
|
|
|
ComponentHandle<ComponentMPG123> mpg123;
|
|
if(!IsComponentAvailable(mpg123))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
struct MPG123Handle
|
|
{
|
|
mpg123_handle *mh;
|
|
MPG123Handle() : mh(mpg123_new(0, nullptr)) { }
|
|
~MPG123Handle() { mpg123_delete(mh); }
|
|
operator mpg123_handle *() { return mh; }
|
|
};
|
|
|
|
bool hasLameXingVbriHeader = false;
|
|
|
|
if(!raw)
|
|
{
|
|
|
|
mpg123_off_t length_raw = 0;
|
|
mpg123_off_t length_hdr = 0;
|
|
|
|
// libmpg123 provides no way to determine whether it parsed ID3V2 or VBR tags.
|
|
// Thus, we use a pre-scan with those disabled and compare the resulting length.
|
|
// We ignore ID3V2 stream length here, althrough we parse the ID3V2 header.
|
|
// libmpg123 only accounts for the VBR info frame if gapless &&!ignore_infoframe,
|
|
// thus we switch both of those for comparison.
|
|
{
|
|
MPG123Handle mh;
|
|
if(!mh)
|
|
{
|
|
return false;
|
|
}
|
|
file.Rewind();
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_QUIET, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_AUTO_RESAMPLE, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_REMOVE_FLAGS, MPG123_GAPLESS, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_IGNORE_INFOFRAME, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_REMOVE_FLAGS, MPG123_SKIP_ID3V2, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_IGNORE_STREAMLENGTH, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_INDEX_SIZE, -1000, 0.0)) // auto-grow
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_replace_reader_handle(mh, ComponentMPG123::FileReaderRead, ComponentMPG123::FileReaderLSeek, 0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_open_handle(mh, &file))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_scan(mh))
|
|
{
|
|
return false;
|
|
}
|
|
long rate = 0;
|
|
int channels = 0;
|
|
int encoding = 0;
|
|
if(mpg123_getformat(mh, &rate, &channels, &encoding))
|
|
{
|
|
return false;
|
|
}
|
|
if((channels != 1 && channels != 2) || (encoding & (MPG123_ENC_16 | MPG123_ENC_SIGNED)) != (MPG123_ENC_16 | MPG123_ENC_SIGNED))
|
|
{
|
|
return false;
|
|
}
|
|
mpg123_frameinfo frameinfo;
|
|
MemsetZero(frameinfo);
|
|
if(mpg123_info(mh, &frameinfo))
|
|
{
|
|
return false;
|
|
}
|
|
if(frameinfo.layer < 1 || frameinfo.layer > 3)
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_FORCE_RATE, rate, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, (channels > 1) ? MPG123_FORCE_STEREO : MPG123_FORCE_MONO, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
length_raw = mpg123_length(mh);
|
|
}
|
|
|
|
{
|
|
MPG123Handle mh;
|
|
if(!mh)
|
|
{
|
|
return false;
|
|
}
|
|
file.Rewind();
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_QUIET, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_AUTO_RESAMPLE, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_GAPLESS, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_REMOVE_FLAGS, MPG123_IGNORE_INFOFRAME, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_REMOVE_FLAGS, MPG123_SKIP_ID3V2, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_IGNORE_STREAMLENGTH, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_INDEX_SIZE, -1000, 0.0)) // auto-grow
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_replace_reader_handle(mh, ComponentMPG123::FileReaderRead, ComponentMPG123::FileReaderLSeek, 0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_open_handle(mh, &file))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_scan(mh))
|
|
{
|
|
return false;
|
|
}
|
|
long rate = 0;
|
|
int channels = 0;
|
|
int encoding = 0;
|
|
if(mpg123_getformat(mh, &rate, &channels, &encoding))
|
|
{
|
|
return false;
|
|
}
|
|
if((channels != 1 && channels != 2) || (encoding & (MPG123_ENC_16 | MPG123_ENC_SIGNED)) != (MPG123_ENC_16 | MPG123_ENC_SIGNED))
|
|
{
|
|
return false;
|
|
}
|
|
mpg123_frameinfo frameinfo;
|
|
MemsetZero(frameinfo);
|
|
if(mpg123_info(mh, &frameinfo))
|
|
{
|
|
return false;
|
|
}
|
|
if(frameinfo.layer < 1 || frameinfo.layer > 3)
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_FORCE_RATE, rate, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, (channels > 1) ? MPG123_FORCE_STEREO : MPG123_FORCE_MONO, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
length_hdr = mpg123_length(mh);
|
|
}
|
|
|
|
hasLameXingVbriHeader = (length_raw != length_hdr);
|
|
|
|
}
|
|
|
|
// Set up decoder...
|
|
MPG123Handle mh;
|
|
if(!mh)
|
|
{
|
|
return false;
|
|
}
|
|
file.Rewind();
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_QUIET, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_AUTO_RESAMPLE, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, raw ? MPG123_REMOVE_FLAGS : MPG123_ADD_FLAGS, MPG123_GAPLESS, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, raw ? MPG123_ADD_FLAGS : MPG123_REMOVE_FLAGS, MPG123_IGNORE_INFOFRAME, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_REMOVE_FLAGS, MPG123_SKIP_ID3V2, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, raw ? MPG123_ADD_FLAGS : MPG123_REMOVE_FLAGS, MPG123_IGNORE_STREAMLENGTH, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_INDEX_SIZE, -1000, 0.0)) // auto-grow
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_replace_reader_handle(mh, ComponentMPG123::FileReaderRead, ComponentMPG123::FileReaderLSeek, 0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_open_handle(mh, &file))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_scan(mh))
|
|
{
|
|
return false;
|
|
}
|
|
long rate = 0;
|
|
int channels = 0;
|
|
int encoding = 0;
|
|
if(mpg123_getformat(mh, &rate, &channels, &encoding))
|
|
{
|
|
return false;
|
|
}
|
|
if((channels != 1 && channels != 2) || (encoding & (MPG123_ENC_16 | MPG123_ENC_SIGNED)) != (MPG123_ENC_16 | MPG123_ENC_SIGNED))
|
|
{
|
|
return false;
|
|
}
|
|
mpg123_frameinfo frameinfo;
|
|
MemsetZero(frameinfo);
|
|
if(mpg123_info(mh, &frameinfo))
|
|
{
|
|
return false;
|
|
}
|
|
if(frameinfo.layer < 1 || frameinfo.layer > 3)
|
|
{
|
|
return false;
|
|
}
|
|
// We force samplerate, channels and sampleformat, which in
|
|
// combination with auto-resample (set above) will cause libmpg123
|
|
// to stay with the given format even for completely confused
|
|
// MPG123_FRANKENSTEIN streams.
|
|
// Note that we cannot rely on mpg123_length() for the way we
|
|
// decode the mpeg streams because it depends on the actual frame
|
|
// sample rate instead of the returned sample rate.
|
|
if(mpg123_param(mh, MPG123_FORCE_RATE, rate, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
if(mpg123_param(mh, MPG123_ADD_FLAGS, (channels > 1) ? MPG123_FORCE_STEREO : MPG123_FORCE_MONO, 0.0))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
std::vector<int16> data;
|
|
|
|
// decoder delay
|
|
std::size_t data_skip_frames = 0;
|
|
if(!raw && !hasLameXingVbriHeader)
|
|
{
|
|
if(frameinfo.layer == 1)
|
|
{
|
|
data_skip_frames = 240 + 1;
|
|
} else if(frameinfo.layer == 2)
|
|
{
|
|
data_skip_frames = 240 + 1;
|
|
} else if(frameinfo.layer == 3)
|
|
{
|
|
data_skip_frames = 528 + 1;
|
|
}
|
|
}
|
|
|
|
std::vector<std::byte> buf_bytes;
|
|
std::vector<int16> buf_samples;
|
|
bool decode_error = false;
|
|
bool decode_done = false;
|
|
while(!decode_error && !decode_done)
|
|
{
|
|
buf_bytes.resize(mpg123_outblock(mh));
|
|
buf_samples.resize(buf_bytes.size() / sizeof(int16));
|
|
mpg123_size_t buf_bytes_decoded = 0;
|
|
int mpg123_read_result = mpg123_read(mh, mpt::byte_cast<unsigned char*>(buf_bytes.data()), buf_bytes.size(), &buf_bytes_decoded);
|
|
std::memcpy(buf_samples.data(), buf_bytes.data(), buf_bytes_decoded);
|
|
mpt::append(data, buf_samples.data(), buf_samples.data() + buf_bytes_decoded / sizeof(int16));
|
|
if((data.size() / channels) > MAX_SAMPLE_LENGTH)
|
|
{
|
|
break;
|
|
}
|
|
if(mpg123_read_result == MPG123_OK)
|
|
{
|
|
// continue
|
|
} else if(mpg123_read_result == MPG123_NEW_FORMAT)
|
|
{
|
|
// continue
|
|
} else if(mpg123_read_result == MPG123_DONE)
|
|
{
|
|
decode_done = true;
|
|
} else
|
|
{
|
|
decode_error = true;
|
|
}
|
|
}
|
|
|
|
if((data.size() / channels) > MAX_SAMPLE_LENGTH)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
FileTags tags;
|
|
mpg123_id3v1 *id3v1 = nullptr;
|
|
mpg123_id3v2 *id3v2 = nullptr;
|
|
if(mpg123_id3(mh, &id3v1, &id3v2) == MPG123_OK)
|
|
{
|
|
if(id3v2)
|
|
{
|
|
if(tags.title.empty()) tags.title = ReadMPG123String(id3v2->title);
|
|
if(tags.artist.empty()) tags.artist = ReadMPG123String(id3v2->artist);
|
|
if(tags.album.empty()) tags.album = ReadMPG123String(id3v2->album);
|
|
if(tags.year.empty()) tags.year = ReadMPG123String(id3v2->year);
|
|
if(tags.genre.empty()) tags.genre = ReadMPG123String(id3v2->genre);
|
|
if(tags.comments.empty()) tags.comments = ReadMPG123String(id3v2->comment);
|
|
}
|
|
if(id3v1)
|
|
{
|
|
if(tags.title.empty()) tags.title = ReadMPG123String(id3v1->title);
|
|
if(tags.artist.empty()) tags.artist = ReadMPG123String(id3v1->artist);
|
|
if(tags.album.empty()) tags.album = ReadMPG123String(id3v1->album);
|
|
if(tags.year.empty()) tags.year = ReadMPG123String(id3v1->year);
|
|
if(tags.comments.empty()) tags.comments = ReadMPG123String(id3v1->comment);
|
|
}
|
|
}
|
|
mpt::ustring sampleName = GetSampleNameFromTags(tags);
|
|
|
|
DestroySampleThreadsafe(sample);
|
|
if(!mo3Decode)
|
|
{
|
|
m_szNames[sample] = mpt::ToCharset(GetCharsetInternal(), sampleName);
|
|
Samples[sample].Initialize();
|
|
Samples[sample].nC5Speed = rate;
|
|
}
|
|
Samples[sample].nLength = mpt::saturate_cast<SmpLength>((data.size() / channels) - data_skip_frames);
|
|
|
|
Samples[sample].uFlags.set(CHN_16BIT);
|
|
Samples[sample].uFlags.set(CHN_STEREO, channels == 2);
|
|
Samples[sample].AllocateSample();
|
|
|
|
if(Samples[sample].HasSampleData())
|
|
{
|
|
std::memcpy(Samples[sample].sampleb(), data.data() + (data_skip_frames * channels), (data.size() - (data_skip_frames * channels)) * sizeof(int16));
|
|
}
|
|
|
|
if(!mo3Decode)
|
|
{
|
|
Samples[sample].Convert(MOD_TYPE_IT, GetType());
|
|
Samples[sample].PrecomputeLoops(*this, false);
|
|
}
|
|
return Samples[sample].HasSampleData();
|
|
|
|
#elif defined(MPT_WITH_MINIMP3)
|
|
|
|
MPT_UNREFERENCED_PARAMETER(raw);
|
|
|
|
file.Rewind();
|
|
FileReader::PinnedView rawDataView = file.GetPinnedView();
|
|
int64 bytes_left = rawDataView.size();
|
|
const uint8 *stream_pos = mpt::byte_cast<const uint8 *>(rawDataView.data());
|
|
|
|
std::vector<int16> raw_sample_data;
|
|
|
|
mpt::heap_value<mp3dec_t> mp3;
|
|
std::memset(&*mp3, 0, sizeof(mp3dec_t));
|
|
mp3dec_init(&*mp3);
|
|
|
|
int rate = 0;
|
|
int channels = 0;
|
|
|
|
mp3dec_frame_info_t info;
|
|
std::memset(&info, 0, sizeof(mp3dec_frame_info_t));
|
|
std::vector<int16> sample_buf(MINIMP3_MAX_SAMPLES_PER_FRAME);
|
|
do
|
|
{
|
|
int frame_samples = mp3dec_decode_frame_no_inline(&*mp3, stream_pos, mpt::saturate_cast<int>(bytes_left), sample_buf.data(), &info);
|
|
if(frame_samples < 0 || info.frame_bytes < 0) break; // internal error in minimp3
|
|
if(frame_samples > 0 && info.frame_bytes == 0) break; // internal error in minimp3
|
|
if(frame_samples == 0 && info.frame_bytes == 0) break; // end of stream, no progress
|
|
if(frame_samples == 0 && info.frame_bytes > 0) do { } while(0); // decoder skipped non-mp3 data
|
|
if(frame_samples > 0 && info.frame_bytes > 0) do { } while(0); // normal
|
|
if(info.frame_bytes > 0)
|
|
{
|
|
if(rate != 0 && rate != info.hz) break; // inconsistent stream
|
|
if(channels != 0 && channels != info.channels) break; // inconsistent stream
|
|
rate = info.hz;
|
|
channels = info.channels;
|
|
if(rate <= 0) break; // broken stream
|
|
if(channels != 1 && channels != 2) break; // broken stream
|
|
stream_pos += std::clamp(info.frame_bytes, 0, mpt::saturate_cast<int>(bytes_left));
|
|
bytes_left -= std::clamp(info.frame_bytes, 0, mpt::saturate_cast<int>(bytes_left));
|
|
if(frame_samples > 0)
|
|
{
|
|
try
|
|
{
|
|
mpt::append(raw_sample_data, sample_buf.data(), sample_buf.data() + frame_samples * channels);
|
|
} catch(mpt::out_of_memory e)
|
|
{
|
|
mpt::delete_out_of_memory(e);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if((raw_sample_data.size() / channels) > MAX_SAMPLE_LENGTH)
|
|
{
|
|
break;
|
|
}
|
|
} while(bytes_left > 0);
|
|
|
|
if(rate == 0 || channels == 0 || raw_sample_data.empty())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if((raw_sample_data.size() / channels) > MAX_SAMPLE_LENGTH)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
DestroySampleThreadsafe(sample);
|
|
if(!mo3Decode)
|
|
{
|
|
m_szNames[sample] = "";
|
|
Samples[sample].Initialize();
|
|
Samples[sample].nC5Speed = rate;
|
|
}
|
|
Samples[sample].nLength = mpt::saturate_cast<SmpLength>(raw_sample_data.size() / channels);
|
|
|
|
Samples[sample].uFlags.set(CHN_16BIT);
|
|
Samples[sample].uFlags.set(CHN_STEREO, channels == 2);
|
|
Samples[sample].AllocateSample();
|
|
|
|
if(Samples[sample].HasSampleData())
|
|
{
|
|
std::copy(raw_sample_data.begin(), raw_sample_data.end(), Samples[sample].sample16());
|
|
}
|
|
|
|
if(!mo3Decode)
|
|
{
|
|
Samples[sample].Convert(MOD_TYPE_IT, GetType());
|
|
Samples[sample].PrecomputeLoops(*this, false);
|
|
}
|
|
return Samples[sample].HasSampleData();
|
|
|
|
#else
|
|
|
|
MPT_UNREFERENCED_PARAMETER(sample);
|
|
MPT_UNREFERENCED_PARAMETER(file);
|
|
MPT_UNREFERENCED_PARAMETER(raw);
|
|
MPT_UNREFERENCED_PARAMETER(mo3Decode);
|
|
|
|
#endif // MPT_WITH_MPG123 || MPT_WITH_MINIMP3
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
OPENMPT_NAMESPACE_END
|