add new inputStream stuff, hopefully something major isn't foobar'd

git-svn-id: https://svn.musicpd.org/mpd/trunk@1049 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/Makefile.am

@@ -6,14 +6,14 @@ mpd_headers = buffer2array.h interface.h command.h playlist.h ls.h \
 	audio.h playerData.h stats.h myfprintf.h sig_handlers.h decode.h log.h \
 	audiofile_decode.h charConv.h permission.h mpd_types.h pcm_utils.h \
 	mp4_decode.h aac_decode.h signal_check.h utf8.h inputStream.h \
-	outputBuffer.h replayGain.h
+	outputBuffer.h replayGain.h inputStream_file.h inputStream_http.h
 mpd_SOURCES = main.c buffer2array.c interface.c command.c playlist.c ls.c \
 	song.c list.c directory.c tables.c utils.c path.c mp3_decode.c \
 	tag.c player.c listen.c conf.c ogg_decode.c volume.c flac_decode.c \
 	audio.c playerData.c stats.c myfprintf.c sig_handlers.c decode.c log.c \
 	audiofile_decode.c charConv.c permission.c pcm_utils.c mp4_decode.c \
 	aac_decode.c signal_check.c utf8.c inputStream.c outputBuffer.c \
-	replayGain.c $(mpd_headers)
+	replayGain.c inputStream_file.c inputStream_http.c $(mpd_headers)
 
 mpd_CFLAGS = $(MPD_CFLAGS)
 mpd_LDADD = $(MPD_LIBS) $(ID3_LIB) $(MAD_LIB) $(MP4FF_LIB)

src/aac_decode.c

@@ -212,7 +212,7 @@ float getAacFloatTotalTime(char * file) {
 	InputStream inStream;
 	size_t bread;
 
-	if(openInputStreamFromFile(&inStream,file) < 0) return -1;
+	if(openInputStream(&inStream,file) < 0) return -1;
 
 	initAacBuffer(&inStream,&b,&length,&fileread,&tagsize);
 
@@ -274,7 +274,7 @@ int aac_decode(OutputBuffer * cb, DecoderControl * dc) {
 
 	if((totalTime = getAacFloatTotalTime(dc->file)) < 0) return -1;
 
-	if(openInputStreamFromFile(&inStream,dc->file) < 0) return -1;
+	if(openInputStream(&inStream,dc->file) < 0) return -1;
 
 	initAacBuffer(&inStream,&b,NULL,NULL,NULL);
 

src/flac_decode.c

@@ -81,7 +81,7 @@ int flac_decode(OutputBuffer * cb, DecoderControl *dc) {
 	data.dc = dc;
         data.replayGainScale = 1.0;
 
-        if(openInputStreamFromFile(&(data.inStream),dc->file)<0) {
+        if(openInputStream(&(data.inStream),dc->file)<0) {
                 ERROR("unable to open flac: %s\n",dc->file);
                 return -1;
         }

src/inputStream.c

@@ -18,61 +18,35 @@
 
 #include "inputStream.h"
 
+#include "inputStream_file.h"
+#include "inputStream_http.h"
+
 #include <stdio.h>
 #include <sys/types.h>
 #include <unistd.h>
-#include <errno.h>
 
-int openInputStreamFromFile(InputStream * inStream, char * filename) {
-	inStream->fp = fopen(filename,"r");
-	if(!inStream->fp) {
-		inStream->error = errno;
-		return -1;
-	}
+int openInputStream(InputStream * inStream, char * url) {
+        if(inputStream_fileOpen(inStream,url) == 0) return 0;
+        if(inputStream_httpOpen(inStream,url) == 0) return 0;
 
-	inStream->offset = 0;
-
-	fseek(inStream->fp,0,SEEK_END);
-	inStream->size = ftell(inStream->fp);
-	fseek(inStream->fp,0,SEEK_SET);
-
-	return 0;
+        return -1;
 }
 
 int seekInputStream(InputStream * inStream, long offset, int whence) {
-	if(fseek(inStream->fp,offset,whence)==0) {
-		inStream->offset = ftell(inStream->fp);
-	}
-	else {
-		inStream->error = errno;
-		return -1;
-	}
-
-	return 0;
+        return inStream->seekFunc(inStream,offset,whence);
 }
 
 size_t readFromInputStream(InputStream * inStream, void * ptr, size_t size, 
 		size_t nmemb)
 {
-	size_t readSize;
-
-	readSize = fread(ptr,size,nmemb,inStream->fp);
-
-	if(readSize>0) inStream->offset+=readSize;
-
-	return readSize;
+        return inStream->readFunc(inStream,ptr,size,nmemb);
 }
 
 int closeInputStream(InputStream * inStream) {
-	if(fclose(inStream->fp)<0) {
-		inStream->error = errno;
-	}
-	else return -1;
-
-	return 0;
+        return inStream->closeFunc(inStream);
 }
 
 int inputStreamAtEOF(InputStream * inStream) {
-	return feof(inStream->fp);
+        return inStream->atEOFFunc(inStream);
 }
-/* vim:set shiftwidth=4 tabstop=8 expandtab: */
+/* vim:set shiftwidth=8 tabstop=8 expandtab: */

src/inputStream.h

@@ -19,19 +19,33 @@
 #ifndef INPUT_STREAM_H
 #define INPUT_STREAM_H
 
-#include <stdio.h>
 #include <stdlib.h>
 
-typedef struct _InputStream {
-	FILE * fp;
+typedef struct _InputStream InputStream;
+
+typedef int (* InputStreamSeekFunc) (InputStream * inStream, long offset, 
+                int whence);
+typedef size_t (* InputStreamReadFunc) (InputStream * inStream, void * ptr, size_t size, 
+		size_t nmemb);
+typedef int (* InputStreamCloseFunc) (InputStream * inStream);
+typedef int (* InputStreamAtEOFFunc) (InputStream * inStream);
+
+struct _InputStream {
 	int error;
 	long offset;
 	size_t size;
-} InputStream;
+
+        /* don't touc this stuff */
+        InputStreamSeekFunc seekFunc;
+        InputStreamReadFunc readFunc;
+        InputStreamCloseFunc closeFunc;
+        InputStreamAtEOFFunc atEOFFunc;
+        void * data;
+};
 
 /* if an error occurs for these 3 functions, then -1 is returned and errno
    for the input stream is set */
-int openInputStreamFromFile(InputStream * inStream, char * filename);
+int openInputStream(InputStream * inStream, char * url);
 int seekInputStream(InputStream * inStream, long offset, int whence);
 int closeInputStream(InputStream * inStream);
 int inputStreamAtEOF(InputStream * inStream);

src/mp3_decode.c

@@ -139,8 +139,8 @@ typedef struct _mp3DecodeData {
 int initMp3DecodeData(mp3DecodeData * data, char * file) {
 	int ret;
 
-	while(((ret = openInputStreamFromFile(&(data->inStream),file))<0) && 
-			data->inStream.error==EINTR);
+	while(((ret = openInputStream(&(data->inStream),file))<0)) /*&& 
+			data->inStream.error==EINTR);*/
 	if(ret<0) return -1;
 
 	data->outputPtr = data->outputBuffer;

src/mp4_decode.c

@@ -113,7 +113,7 @@ int mp4_decode(OutputBuffer * cb, DecoderControl * dc) {
 	mpd_uint16 bitRate = 0;
 	InputStream inStream;
 
-	if(openInputStreamFromFile(&inStream,dc->file) < 0) {
+	if(openInputStream(&inStream,dc->file) < 0) {
 		ERROR("failed to open %s\n",dc->file);
 		return -1;
 	}

src/ogg_decode.c

@@ -154,7 +154,7 @@ int ogg_decode(OutputBuffer * cb, DecoderControl * dc)
 	callbacks.close_func = ogg_close_cb;
 	callbacks.tell_func = ogg_tell_cb;
 	
-	if(openInputStreamFromFile(&inStream,dc->file)<0) {
+	if(openInputStream(&inStream,dc->file)<0) {
 		ERROR("failed to open ogg\n");
 		return -1;
 	}

src/tag.c

@@ -219,8 +219,7 @@ MpdTag * mp4DataDup(char * utf8file, int * mp4MetadataFound) {
 
 	*mp4MetadataFound = 0;
 	
-	if(openInputStreamFromFile(&inStream,rmp2amp(utf8ToFsCharset(utf8file)))
-			< 0)
+	if(openInputStream(&inStream,rmp2amp(utf8ToFsCharset(utf8file))) < 0)
 	{
 		return NULL;
 	}