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authorWarren Dukes <warren.dukes@gmail.com>2004-05-04 19:49:29 +0000
committerWarren Dukes <warren.dukes@gmail.com>2004-05-04 19:49:29 +0000
commit659df586719c727204513c97c243c9f14dbfa5d9 (patch)
tree404a08b7c414feb0c1193fadd3ee146fa9bc8f95 /src
parent638817fc5b2a537b21335d8f5e429559353602a5 (diff)
downloadmpd-659df586719c727204513c97c243c9f14dbfa5d9.tar.gz
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implement input abstraction for ogg and mp3
git-svn-id: https://svn.musicpd.org/mpd/trunk@904 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to 'src')
-rw-r--r--src/inputStream.c21
-rw-r--r--src/inputStream.h10
-rw-r--r--src/mp3_decode.c9
-rw-r--r--src/ogg_decode.c39
4 files changed, 52 insertions, 27 deletions
diff --git a/src/inputStream.c b/src/inputStream.c
index 0856dd125..9168e6aeb 100644
--- a/src/inputStream.c
+++ b/src/inputStream.c
@@ -23,7 +23,7 @@
#include <unistd.h>
#include <errno.h>
-int initInputStreamFromFile(InputStream * inStream, char * filename) {
+int openInputStreamFromFile(InputStream * inStream, char * filename) {
inStream->fp = fopen(filename,"r");
if(!inStream->fp) {
inStream->error = errno;
@@ -39,14 +39,9 @@ int initInputStreamFromFile(InputStream * inStream, char * filename) {
return 0;
}
-int seekInputStream(InputStream * inStream, long offset) {
- if(offset<0) {
- inStream->error = EINVAL;
- return -1;
- }
-
- if(fseek(inStream->fp,offset,SEEK_SET)==0) {
- inStream->offset = offset;
+int seekInputStream(InputStream * inStream, long offset, int whence) {
+ if(fseek(inStream->fp,offset,whence)==0) {
+ inStream->offset = ftell(inStream->fp);
}
else {
inStream->error = errno;
@@ -56,19 +51,19 @@ int seekInputStream(InputStream * inStream, long offset) {
return 0;
}
-size_t fillBufferFromInputStream(InputStream * inStream, char * buffer,
- size_t buflen)
+size_t readFromInputStream(InputStream * inStream, void * ptr, size_t size,
+ size_t nmemb)
{
size_t readSize;
- readSize = fread(buffer,1,buflen,inStream->fp);
+ readSize = fread(ptr,size,nmemb,inStream->fp);
if(readSize>0) inStream->offset+=readSize;
return readSize;
}
-int finishInputStream(InputStream * inStream) {
+int closeInputStream(InputStream * inStream) {
if(fclose(inStream->fp)<0) {
inStream->error = errno;
}
diff --git a/src/inputStream.h b/src/inputStream.h
index 2f11da044..8998e3ac1 100644
--- a/src/inputStream.h
+++ b/src/inputStream.h
@@ -31,11 +31,11 @@ typedef struct _InputStream {
/* if an error occurs for these 3 functions, then -1 is returned and errno
for the input stream is set */
-int initInputStreamFromFile(InputStream * inStream, char * filename);
-int seekInputStream(InputStream * inStream, long offset);
-int finishInputStream(InputStream * inStream);
+int openInputStreamFromFile(InputStream * inStream, char * filename);
+int seekInputStream(InputStream * inStream, long offset, int whence);
+int closeInputStream(InputStream * inStream);
-size_t fillBufferFromInputStream(InputStream * inStream, char * buffer,
- size_t buflen);
+size_t readFromInputStream(InputStream * inStream, void * ptr, size_t size,
+ size_t nmemb);
#endif
diff --git a/src/mp3_decode.c b/src/mp3_decode.c
index 58cd62a52..cf1c9b54e 100644
--- a/src/mp3_decode.c
+++ b/src/mp3_decode.c
@@ -136,7 +136,7 @@ typedef struct _mp3DecodeData {
int initMp3DecodeData(mp3DecodeData * data, char * file) {
int ret;
- while(((ret = initInputStreamFromFile(&(data->inStream),file))<0) &&
+ while(((ret = openInputStreamFromFile(&(data->inStream),file))<0) &&
data->inStream.error==EINTR);
if(ret<0) return -1;
@@ -164,7 +164,7 @@ int fillMp3InputBuffer(mp3DecodeData * data, long offset) {
unsigned char * readStart;
if(offset>=0) {
- seekInputStream(&(data->inStream),offset);
+ seekInputStream(&(data->inStream),offset,SEEK_SET);
}
if(offset==-1 && (data->stream).next_frame!=NULL) {
@@ -179,8 +179,7 @@ int fillMp3InputBuffer(mp3DecodeData * data, long offset) {
remaining = 0;
}
- readSize = fillBufferFromInputStream(&(data->inStream),readStart,
- readSize);
+ readSize = readFromInputStream(&(data->inStream),readStart,1,readSize);
if(readSize<=0) return -1;
mad_stream_buffer(&data->stream,data->readBuffer,readSize+remaining);
@@ -375,7 +374,7 @@ void mp3DecodeDataFinalize(mp3DecodeData * data) {
mad_frame_finish(&data->frame);
mad_stream_finish(&data->stream);
- while(finishInputStream(&(data->inStream))<0 &&
+ while(closeInputStream(&(data->inStream))<0 &&
data->inStream.error==EINTR);
if(data->frameOffset) free(data->frameOffset);
if(data->times) free(data->times);
diff --git a/src/ogg_decode.c b/src/ogg_decode.c
index 7d673d462..e37dae2a2 100644
--- a/src/ogg_decode.c
+++ b/src/ogg_decode.c
@@ -25,12 +25,14 @@
#include "audio.h"
#include "log.h"
#include "pcm_utils.h"
+#include "inputStream.h"
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <vorbis/vorbisfile.h>
+#include <errno.h>
#ifdef WORDS_BIGENDIAN
#define OGG_DECODE_USE_BIGENDIAN 1
@@ -38,6 +40,7 @@
#define OGG_DECODE_USE_BIGENDIAN 0
#endif
+/* this is just for tag parsing for db import! */
int getOggTotalTime(char * file) {
OggVorbis_File vf;
FILE * oggfp;
@@ -57,19 +60,47 @@ int getOggTotalTime(char * file) {
return totalTime;
}
+size_t ogg_read_cb(void * ptr, size_t size, size_t nmemb, void * inStream)
+{
+ size_t ret;
+ ret = readFromInputStream((InputStream *)inStream,ptr,size,nmemb);
+
+ if(ret<0) errno = ((InputStream *)inStream)->error;
+
+ return ret;
+}
+
+int ogg_seek_cb(void * inStream, ogg_int64_t offset, int whence) {
+ return seekInputStream((InputStream *)inStream,offset,whence);
+}
+
+int ogg_close_cb(void * inStream) {
+ return closeInputStream((InputStream *)inStream);
+}
+
+long ogg_tell_cb(void * inStream) {
+ return ((InputStream *)inStream)->offset;
+}
+
int ogg_decode(Buffer * cb, AudioFormat * af, DecoderControl * dc)
{
OggVorbis_File vf;
- FILE * oggfp;
+ ov_callbacks callbacks;
+ InputStream inStream;
+
+ callbacks.read_func = ogg_read_cb;
+ callbacks.seek_func = ogg_seek_cb;
+ callbacks.close_func = ogg_close_cb;
+ callbacks.tell_func = ogg_tell_cb;
- if(!(oggfp = fopen(dc->file,"r"))) {
+ if(openInputStreamFromFile(&inStream,dc->file)<0) {
ERROR("failed to open ogg\n");
return -1;
}
- if(ov_open(oggfp, &vf, NULL, 0) < 0) {
+ if(ov_open_callbacks(&inStream, &vf, NULL, 0, callbacks) < 0) {
ERROR("Input does not appear to be an Ogg bit stream.\n");
- fclose(oggfp);
+ closeInputStream(&inStream);
return -1;
}