X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fsounddecoder.cpp;h=138117f730a9210545b807a0338bd8887861fa1d;hb=35b092aaa718dcb12933effd33324bda5d3b5cce;hp=d4d176718d9dbc1b82cb402781df8371719f593d;hpb=6cc0f1735a00e8f9eb80ff0c9468fb67205f6d20;p=libs%2Fal.git

diff --git a/source/sounddecoder.cpp b/source/sounddecoder.cpp
index d4d1767..138117f 100644
--- a/source/sounddecoder.cpp
+++ b/source/sounddecoder.cpp
@@ -1,141 +1,42 @@
-#include <cstring>
-#include <stdexcept>
+#include <msp/core/refptr.h>
+#include <msp/io/file.h>
+#include "oggdecoder.h"
 #include "sounddecoder.h"
 
 using namespace std;
 
-namespace {
-
-struct MemorySource
-{
-	const void *data;
-	unsigned length;
-	unsigned pos;
-
-	MemorySource(const void *d, unsigned l): data(d), length(l), pos(0) { }
-};
-
-size_t memory_read(void *ptr, size_t size, size_t nmemb, void *src)
-{
-	MemorySource &memsrc = *reinterpret_cast<MemorySource *>(src);
-	unsigned len = min<unsigned>(size*nmemb, memsrc.length-memsrc.pos);
-	memcpy(ptr, reinterpret_cast<const char *>(memsrc.data)+memsrc.pos, len);
-	memsrc.pos += len;
-
-	return len/size;
-}
-
-int memory_seek(void *src, ogg_int64_t offset, int whence)
-{
-	MemorySource &memsrc = *reinterpret_cast<MemorySource *>(src);
-	if(whence==SEEK_SET)
-		memsrc.pos = offset;
-	else if(whence==SEEK_CUR)
-		memsrc.pos += offset;
-	else if(whence==SEEK_END)
-		memsrc.pos = memsrc.length-offset;
-	memsrc.pos = min(memsrc.pos, memsrc.length);
-
-	return memsrc.pos;
-}
-
-int memory_close(void *src)
-{
-	delete reinterpret_cast<MemorySource *>(src);
-	return 0;
-}
-
-long memory_tell(void *src)
-{
-	MemorySource &memsrc = *reinterpret_cast<MemorySource *>(src);
-	return memsrc.pos;
-}
-
-ov_callbacks memory_callbacks=
-{
-	&memory_read,
-	&memory_seek,
-	&memory_close,
-	&memory_tell
-};
-
-} // namespace
-
 namespace Msp {
 namespace AL {
 
+unsupported_sound::unsupported_sound(const string &w):
+	runtime_error(w)
+{ }
+
+
 SoundDecoder::SoundDecoder():
+	source(0),
+	freq(0),
+	size(0),
+	format(MONO8),
 	eof_flag(false)
-{
-	ovfile.datasource = 0;
-}
+{ }
 
 SoundDecoder::~SoundDecoder()
 {
-	if(ovfile.datasource)
-		ov_clear(&ovfile);
-}
-
-void SoundDecoder::open_file(const string &fn)
-{
-	if(ovfile.datasource)
-		throw logic_error("Sound has already been opened");
-	if(ov_fopen(const_cast<char *>(fn.c_str()), &ovfile)<0)
-		throw runtime_error("Could not open ogg vorbis file "+fn);
-
-	open_common();
-}
-
-void SoundDecoder::open_memory(const void *d, unsigned len)
-{
-	if(ovfile.datasource)
-		throw logic_error("Sound has already been opened");
-
-	MemorySource *src = new MemorySource(d, len);
-	if(ov_open_callbacks(src, &ovfile, 0, 0, memory_callbacks)<0)
-	{
-		delete src;
-		throw runtime_error("Could not open ogg vorbis memory block");
-	}
-
-	open_common();
-}
-
-void SoundDecoder::open_common()
-{
-	vorbis_info *info = ov_info(&ovfile, -1);
-	freq = info->rate;
-
-	size = ov_pcm_total(&ovfile, 0)*info->channels*2;
-
-	switch(info->channels)
-	{
-	case 1: format = MONO16; break;
-	case 2: format = STEREO16; break;
-	default: throw runtime_error("Unsupported number of channels");
-	}
-}
-
-void SoundDecoder::close()
-{
-	if(ovfile.datasource)
-		ov_clear(&ovfile);
+	delete source;
 }
 
-void SoundDecoder::rewind()
+SoundDecoder *SoundDecoder::open_file(const string &fn)
 {
-	ov_pcm_seek(&ovfile, 0);
+	RefPtr<IO::BufferedFile> file = new IO::BufferedFile(fn);
+	SoundDecoder *decoder = new OggDecoder(*file);
+	decoder->source = file.release();
+	return decoder;
 }
 
-unsigned SoundDecoder::read(char *buf, unsigned len)
+SoundDecoder *SoundDecoder::open_io(IO::Seekable &io)
 {
-	int section = 0;
-	int res = ov_read(&ovfile, buf, len, 0, 2, 1, &section);
-	if(res<0)
-		throw runtime_error("Error reading ogg vorbis file");
-	else if(res==0)
-		eof_flag = true;
-	return res;
+	return new OggDecoder(io);
 }
 
 } // namespace AL