Add some basic support for Sony's Wave64 format.

Originally committed to SVN as r2342.
This commit is contained in:
Niels Martin Hansen 2008-09-10 23:02:40 +00:00
parent df3a25129e
commit e7ed19e55a
2 changed files with 154 additions and 2 deletions

View file

@ -370,11 +370,154 @@ public:
};
// Sony Wave64 audio provider
// Specs obtained at: <http://www.vcs.de/fileadmin/user_upload/MBS/PDF/Whitepaper/Informations_about_Sony_Wave64.pdf>
static const uint8_t w64GuidRIFF[16] = {
// {66666972-912E-11CF-A5D6-28DB04C10000}
0x72, 0x69, 0x66, 0x66, 0x2E, 0x91, 0xCF, 0x11, 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00
};
static const uint8_t w64GuidWAVE[16] = {
// {65766177-ACF3-11D3-8CD1-00C04F8EDB8A}
0x77, 0x61, 0x76, 0x65, 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
};
static const uint8_t w64Guidfmt[16] = {
// {20746D66-ACF3-11D3-8CD1-00C04F8EDB8A}
0x66, 0x6D, 0x74, 0x20, 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
};
static const uint8_t w64Guiddata[16] = {
// {61746164-ACF3-11D3-8CD1-00C04F8EDB8A}
0x64, 0x61, 0x74, 0x61, 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
};
class Wave64AudioProvider : public PCMAudioProvider {
private:
// Here's some copy-paste from the FFmpegSource2 code
struct WaveFormatEx {
uint16_t wFormatTag;
uint16_t nChannels;
uint32_t nSamplesPerSec;
uint32_t nAvgBytesPerSec;
uint16_t nBlockAlign;
uint16_t wBitsPerSample;
uint16_t cbSize;
};
struct RiffChunk {
uint8_t riff_guid[16];
uint64_t file_size;
uint8_t format_guid[16];
};
struct FormatChunk {
uint8_t chunk_guid[16];
uint64_t chunk_size;
WaveFormatEx format;
uint8_t padding[6];
};
struct DataChunk {
uint8_t chunk_guid[16];
uint64_t chunk_size;
};
inline bool CheckGuid(const uint8_t *guid1, const uint8_t *guid2)
{
return memcmp(guid1, guid2, 16) == 0;
}
public:
Wave64AudioProvider(const wxString &_filename)
: PCMAudioProvider(_filename)
{
filename = _filename;
int64_t smallest_possible_file = sizeof(RiffChunk) + sizeof(FormatChunk) + sizeof(DataChunk);
if (file_size < smallest_possible_file)
throw _T("Wave64 audio provider: File is too small to be a Wave64 file");
// Read header
// This should throw an exception if the mapping fails
void *filestart = EnsureRangeAccessible(0, sizeof(RiffChunk));
assert(filestart);
RiffChunk &header = *(RiffChunk*)filestart;
// Check magic values
if (!CheckGuid(header.riff_guid, w64GuidRIFF))
throw _T("Wave64 audio provider: File is not a Wave64 RIFF file");
if (!CheckGuid(header.format_guid, w64GuidWAVE))
throw _T("Wave64 audio provider: File is not a Wave64 WAVE file");
// Count how much more data we can have in the entire file
uint64_t data_left = Endian::LittleToMachine(header.file_size) - sizeof(RiffChunk);
// How far into the file we have processed.
// Must be incremented by the riff chunk size fields.
uint64_t filepos = sizeof(header);
bool got_fmt_header = false;
// Inherited from AudioProvider
num_samples = 0;
// Continue reading chunks until out of data
while (data_left) {
uint8_t *chunk_guid = (uint8_t*)EnsureRangeAccessible(filepos, 16);
uint64_t chunk_size = Endian::LittleToMachine(*(uint64_t*)EnsureRangeAccessible(filepos+16, sizeof(uint64_t)));
if (CheckGuid(chunk_guid, w64Guidfmt)) {
if (got_fmt_header)
throw _T("Wave64 audio provider: Bad file, found more than one 'fmt' chunk");
FormatChunk &fmt = *(FormatChunk*)EnsureRangeAccessible(filepos, sizeof(FormatChunk));
got_fmt_header = true;
if (Endian::LittleToMachine(fmt.format.wFormatTag) == 3)
throw _T("Wave64 audio provider: File is IEEE 32 bit float format which isn't supported. Bug the developers if this matters.");
if (Endian::LittleToMachine(fmt.format.wFormatTag) != 1)
throw _T("Wave64 audio provider: Can't use file, not PCM encoding");
// Set stuff inherited from the AudioProvider class
sample_rate = Endian::LittleToMachine(fmt.format.nSamplesPerSec);
channels = Endian::LittleToMachine(fmt.format.nChannels);
bytes_per_sample = (Endian::LittleToMachine(fmt.format.wBitsPerSample) + 7) / 8; // round up to nearest whole byte
}
else if (CheckGuid(chunk_guid, w64Guiddata)) {
if (!got_fmt_header)
throw _T("Wave64 audio provider: Found 'data' chunk before 'fmt ' chunk, file is invalid.");
int64_t samples = chunk_size / bytes_per_sample;
int64_t frames = samples / channels;
IndexPoint ip;
ip.start_sample = num_samples;
ip.num_samples = frames;
ip.start_byte = filepos;
index_points.push_back(ip);
num_samples += frames;
}
// Update counters
// Make sure they're 64 bit aligned
data_left -= (chunk_size + 7) & ~7;
filepos += (chunk_size + 7) & ~7;
}
}
};
AudioProvider *CreatePCMAudioProvider(const wxString &filename)
{
AudioProvider *provider = 0;
// Try Microsoft/IBM RIFF WAV first
// Try Microsoft/IBM RIFF WAV
try {
provider = new RiffWavPCMAudioProvider(filename);
}
@ -383,5 +526,14 @@ AudioProvider *CreatePCMAudioProvider(const wxString &filename)
wxLogDebug(_T("Creating PCM WAV reader failed with message: %s\nProceeding to try other providers."), msg);
}
// Try Sony Wave64
try {
provider = new Wave64AudioProvider(filename);
}
catch (const wxChar *msg) {
provider = 0;
wxLogDebug(_T("Creating Wave64 reader failed with message: %s\nProceeding to try other providers."), msg);
}
return provider;
}

View file

@ -628,7 +628,7 @@ void FrameMain::OnCloseVideo(wxCommandEvent& WXUNUSED(event)) {
// Open Audio
void FrameMain::OnOpenAudio (wxCommandEvent& WXUNUSED(event)) {
wxString path = Options.AsText(_T("Last open audio path"));
wxString str = wxString(_("Audio Formats")) + _T(" (*.wav,*.mp3,*.ogg,*.flac,*.mp4,*.ac3,*.aac,*.mka,*.m4a)|*.wav;*.mp3;*.ogg;*.flac;*.mp4;*.ac3;*.aac;*.mka;*.m4a|")
wxString str = wxString(_("Audio Formats")) + _T(" (*.wav,*.mp3,*.ogg,*.flac,*.mp4,*.ac3,*.aac,*.mka,*.m4a,*.w64)|*.wav;*.mp3;*.ogg;*.flac;*.mp4;*.ac3;*.aac;*.mka;*.m4a;*.w64|")
+ _("Video Formats") + _T(" (*.avi,*.mkv,*.ogm,*.mpg,*.mpeg)|*.avi;*.mkv;*.ogm;*.mp4;*.mpeg;*.mpg|")
+ _("All files") + _T(" (*.*)|*.*");
wxString filename = wxFileSelector(_("Open audio file"),path,_T(""),_T(""),str,wxFD_OPEN | wxFD_FILE_MUST_EXIST);