[xiph-cvs] cvs commit: vorbis/examples chaining_example.c decoder_example.c encoder_example.c seeking_example.c vorbisfile_example.c
Chris Wolf
cwolf at xiph.org
Fri Sep 14 21:47:51 PDT 2001
cwolf 01/09/14 21:47:50
Modified: examples chaining_example.c decoder_example.c
encoder_example.c seeking_example.c
vorbisfile_example.c
Log:
Add support for named files on the command line, while maintaining
current filter pipeline (stdin/stdout) mode of operation.
Revision Changes Path
1.12 +31 -22 vorbis/examples/chaining_example.c
Index: chaining_example.c
===================================================================
RCS file: /usr/local/cvsroot/vorbis/examples/chaining_example.c,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -r1.11 -r1.12
--- chaining_example.c 2001/09/13 23:34:46 1.11
+++ chaining_example.c 2001/09/15 04:47:47 1.12
@@ -11,7 +11,7 @@
********************************************************************
function: illustrate simple use of chained bitstream and vorbisfile.a
- last mod: $Id: chaining_example.c,v 1.11 2001/09/13 23:34:46 cwolf Exp $
+ last mod: $Id: chaining_example.c,v 1.12 2001/09/15 04:47:47 cwolf Exp $
********************************************************************/
@@ -23,8 +23,10 @@
#include <fcntl.h>
#endif
-int main(){
+int main(int argc, char *argv[]){
OggVorbis_File ov;
+ char msg[256];
+ FILE *fpin=NULL;
int i;
#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
@@ -34,8 +36,22 @@
_setmode( _fileno( stdout ), _O_BINARY );
#endif
+ /* If command line args were supplied, open the named file(s)
+ for i/o, else maintain use of stdin/stdout.*/
+ if (argc == 2)
+ {
+ if ((fpin = fopen(argv[1], "rb")) == (FILE*)NULL)
+ {
+ (void)sprintf(msg, "Can't open \"%s\" for input", argv[1]);
+ perror(msg);
+ return 1;
+ }
+ }
+ else
+ fpin = stdin;
+
/* open the file/pipe on stdin */
- if(ov_open(stdin,&ov,NULL,-1)<0){
+ if(ov_open(fpin,&ov,NULL,-1)<0){
printf("Could not open input as an OggVorbis file.\n\n");
exit(1);
}
@@ -43,40 +59,33 @@
/* print details about each logical bitstream in the input */
if(ov_seekable(&ov)){
printf("Input bitstream contained %ld logical bitstream section(s).\n",
- ov_streams(&ov));
+ ov_streams(&ov));
printf("Total bitstream playing time: %ld seconds\n\n",
- (long)ov_time_total(&ov,-1));
+ (long)ov_time_total(&ov,-1));
}else{
printf("Standard input was not seekable.\n"
- "First logical bitstream information:\n\n");
+ "First logical bitstream information:\n\n");
}
for(i=0;i<ov_streams(&ov);i++){
vorbis_info *vi=ov_info(&ov,i);
printf("\tlogical bitstream section %d information:\n",i+1);
printf("\t\t%ldHz %d channels bitrate %ldkbps serial number=%ld\n",
- vi->rate,vi->channels,ov_bitrate(&ov,i)/1000,
- ov_serialnumber(&ov,i));
+ vi->rate,vi->channels,ov_bitrate(&ov,i)/1000,
+ ov_serialnumber(&ov,i));
printf("\t\theader length: %ld bytes\n",(long)
- (ov.dataoffsets[i]-ov.offsets[i]));
+ (ov.dataoffsets[i]-ov.offsets[i]));
printf("\t\tcompressed length: %ld bytes ",(long)(ov_raw_total(&ov,i)));
printf(" play time: %lds\n",(long)ov_time_total(&ov,i));
}
ov_clear(&ov);
- return 0;
-}
-
-
-
-
-
-
-
-
-
-
-
+ if (argc == 2)
+ {
+ (void)fclose(fpin);
+ }
+ return 0;
+}
1.21 +31 -5 vorbis/examples/decoder_example.c
Index: decoder_example.c
===================================================================
RCS file: /usr/local/cvsroot/vorbis/examples/decoder_example.c,v
retrieving revision 1.20
retrieving revision 1.21
diff -u -r1.20 -r1.21
--- decoder_example.c 2001/05/27 20:33:18 1.20
+++ decoder_example.c 2001/09/15 04:47:48 1.21
@@ -11,7 +11,7 @@
********************************************************************
function: simple example decoder
- last mod: $Id: decoder_example.c,v 1.20 2001/05/27 20:33:18 xiphmont Exp $
+ last mod: $Id: decoder_example.c,v 1.21 2001/09/15 04:47:48 cwolf Exp $
********************************************************************/
@@ -53,6 +53,9 @@
char *buffer;
int bytes;
+ FILE *fpin=NULL;
+ FILE *fpout=NULL;
+ char msg[512];
#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
/* Beware the evil ifdef. We avoid these where we can, but this one we
@@ -67,6 +70,29 @@
/* this also lets the user set stdin and stdout */
#endif
+ /* If command line args were supplied, open the named file(s)
+ for i/o, else maintain use of stdin/stdout.*/
+ if (argc == 3)
+ {
+ if ((fpin = fopen(argv[1], "rb")) == (FILE*)NULL)
+ {
+ (void)sprintf(msg, "Can't open %s for reading.", argv[1]);
+ perror(msg);
+ return 1;
+ }
+
+ if ((fpout = fopen(argv[2], "wb")) == (FILE*)NULL)
+ {
+ (void)sprintf(msg, "Can't open %s for writing.", argv[2]);
+ perror(msg);
+ return 1;
+ }
+ }
+ else
+ {
+ fpin = stdin;
+ fpout = stdout;
+ }
/********** Decode setup ************/
ogg_sync_init(&oy); /* Now we can read pages */
@@ -82,7 +108,7 @@
/* submit a 4k block to libvorbis' Ogg layer */
buffer=ogg_sync_buffer(&oy,4096);
- bytes=fread(buffer,1,4096,stdin);
+ bytes=fread(buffer,1,4096,fpin);
ogg_sync_wrote(&oy,bytes);
/* Get the first page. */
@@ -165,7 +191,7 @@
}
/* no harm in not checking before adding more */
buffer=ogg_sync_buffer(&oy,4096);
- bytes=fread(buffer,1,4096,stdin);
+ bytes=fread(buffer,1,4096,fpin);
if(bytes==0 && i<2){
fprintf(stderr,"End of file before finding all Vorbis headers!\n");
exit(1);
@@ -261,7 +287,7 @@
fprintf(stderr,"Clipping in frame %ld\n",(long)(vd.sequence));
- fwrite(convbuffer,2*vi.channels,bout,stdout);
+ fwrite(convbuffer,2*vi.channels,bout,fpout);
vorbis_synthesis_read(&vd,bout); /* tell libvorbis how
many samples we
@@ -274,7 +300,7 @@
}
if(!eos){
buffer=ogg_sync_buffer(&oy,4096);
- bytes=fread(buffer,1,4096,stdin);
+ bytes=fread(buffer,1,4096,fpin);
ogg_sync_wrote(&oy,bytes);
if(bytes==0)eos=1;
}
1.24 +66 -16 vorbis/examples/encoder_example.c
Index: encoder_example.c
===================================================================
RCS file: /usr/local/cvsroot/vorbis/examples/encoder_example.c,v
retrieving revision 1.23
retrieving revision 1.24
diff -u -r1.23 -r1.24
--- encoder_example.c 2001/08/13 11:40:43 1.23
+++ encoder_example.c 2001/09/15 04:47:48 1.24
@@ -11,7 +11,7 @@
********************************************************************
function: simple example encoder
- last mod: $Id: encoder_example.c,v 1.23 2001/08/13 11:40:43 xiphmont Exp $
+ last mod: $Id: encoder_example.c,v 1.24 2001/09/15 04:47:48 cwolf Exp $
********************************************************************/
@@ -24,6 +24,7 @@
#include <stdlib.h>
#include <time.h>
#include <math.h>
+#include <string.h>
#include <vorbis/vorbisenc.h>
#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */
@@ -38,7 +39,7 @@
#define READ 1024
signed char readbuffer[READ*4+44]; /* out of the data segment, not the stack */
-int main(){
+int main(int argc, char *argv[]){
ogg_stream_state os; /* take physical pages, weld into a logical
stream of packets */
ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */
@@ -52,18 +53,18 @@
vorbis_block vb; /* local working space for packet->PCM decode */
int eos=0;
+ FILE *fpin=NULL;
+ FILE *fpout=NULL;
+ char msg[512];
+ int i, founddata;
#if defined(macintosh) && defined(__MWERKS__)
- int argc = 0;
- char **argv = NULL;
- argc = ccommand(&argv); /* get a "command line" from the Mac user */
- /* this also lets the user set stdin and stdout */
+ int ac = 0;
+ char **av = NULL;
+ ac = ccommand(&av); /* get a "command line" from the Mac user */
+ /* this also lets the user set stdin and stdout */
#endif
- /* we cheat on the WAV header; we just bypass 44 bytes and never
- verify that it matches 16bit/stereo/44.1kHz. This is just an
- example, after all. */
-
#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
/* Beware the evil ifdef. We avoid these where we can, but this one we
cannot. Don't add any more, you'll probably go to hell if you do. */
@@ -71,8 +72,57 @@
_setmode( _fileno( stdout ), _O_BINARY );
#endif
+ /* If command line args were supplied, open the named file(s)
+ for i/o, else maintain use of stdin/stdout.*/
+ if (argc == 3)
+ {
+ if ((fpin = fopen(argv[1], "rb")) == (FILE*)NULL)
+ {
+ (void)sprintf(msg, "Can't open %s for reading.", argv[1]);
+ perror(msg);
+ return 1;
+ }
+
+ if ((fpout = fopen(argv[2], "wb")) == (FILE*)NULL)
+ {
+ (void)sprintf(msg, "Can't open %s for writing.", argv[2]);
+ perror(msg);
+ return 1;
+ }
+ }
+ else
+ {
+ fpin = stdin;
+ fpout = stdout;
+ }
- fread(readbuffer,1,44,stdin);
+ /* we cheat on the WAV header; we just bypass the header and never
+ verify that it matches 16bit/stereo/44.1kHz. This is just an
+ example, after all. */
+
+ readbuffer[0] = '\0';
+ for (i=0, founddata=0; i<40 && ! feof(fpin) && ! ferror(fpin); i++)
+ {
+ fread(readbuffer,1,2,fpin);
+
+ if ( ! strncmp(readbuffer, "da", 2) )
+ {
+ founddata = 1;
+ fread(readbuffer,1,6,fpin);
+ }
+ }
+
+ if ( feof(fpin) || ferror(fpin) )
+ {
+ (void)fprintf(stderr, "Error: Input WAV too short, or corrupt.\n");
+ return(1);
+ }
+
+ if ( ! founddata )
+ {
+ (void)fprintf(stderr, "Error: Can't find \"data\" chunk in WAV input.\n");
+ return(1);
+ }
/********** Encode setup ************/
@@ -120,15 +170,15 @@
while(!eos){
int result=ogg_stream_flush(&os,&og);
if(result==0)break;
- fwrite(og.header,1,og.header_len,stdout);
- fwrite(og.body,1,og.body_len,stdout);
+ fwrite(og.header,1,og.header_len,fpout);
+ fwrite(og.body,1,og.body_len,fpout);
}
}
while(!eos){
long i;
- long bytes=fread(readbuffer,1,READ*4,stdin); /* stereo hardwired here */
+ long bytes=fread(readbuffer,1,READ*4,fpin); /* stereo hardwired here */
if(bytes==0){
/* end of file. this can be done implicitly in the mainline,
@@ -170,8 +220,8 @@
while(!eos){
int result=ogg_stream_pageout(&os,&og);
if(result==0)break;
- fwrite(og.header,1,og.header_len,stdout);
- fwrite(og.body,1,og.body_len,stdout);
+ fwrite(og.header,1,og.header_len,fpout);
+ fwrite(og.body,1,og.body_len,fpout);
/* this could be set above, but for illustrative purposes, I do
it here (to show that vorbis does know where the stream ends) */
1.9 +29 -4 vorbis/examples/seeking_example.c
Index: seeking_example.c
===================================================================
RCS file: /usr/local/cvsroot/vorbis/examples/seeking_example.c,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- seeking_example.c 2001/05/27 06:43:58 1.8
+++ seeking_example.c 2001/09/15 04:47:48 1.9
@@ -11,7 +11,7 @@
********************************************************************
function: illustrate seeking, and test it too
- last mod: $Id: seeking_example.c,v 1.8 2001/05/27 06:43:58 xiphmont Exp $
+ last mod: $Id: seeking_example.c,v 1.9 2001/09/15 04:47:48 cwolf Exp $
********************************************************************/
@@ -19,8 +19,12 @@
#include <stdio.h>
#include "vorbis/codec.h"
#include "vorbis/vorbisfile.h"
-#include "../lib/misc.h"
+//#include "../lib/misc.h"
+#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */
+# include <io.h>
+# include <fcntl.h>
+#endif
void _verify(OggVorbis_File *ov,ogg_int64_t pos,
ogg_int64_t val,ogg_int64_t pcmval,
@@ -56,15 +60,36 @@
}
}
-int main(){
+int main(int argc, char *argv[]){
OggVorbis_File ov;
int i,ret;
ogg_int64_t pcmlength;
char *bigassbuffer;
int dummy;
+ char msg[256];
+ FILE *fpin=NULL;
+#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
+ _setmode( _fileno( stdin ), _O_BINARY );
+ _setmode( _fileno( stdout ), _O_BINARY );
+#endif
+
+ /* If command line args were supplied, open the named file(s)
+ for i/o, else maintain use of stdin/stdout.*/
+ if (argc == 2)
+ {
+ if ((fpin = fopen(argv[1], "rb")) == (FILE*)NULL)
+ {
+ (void)sprintf(msg, "Can't open \"%s\" for input", argv[1]);
+ perror(msg);
+ return 1;
+ }
+ }
+ else
+ fpin = stdin;
+
/* open the file/pipe on stdin */
- if(ov_open(stdin,&ov,NULL,-1)<0){
+ if(ov_open(fpin,&ov,NULL,-1)<0){
printf("Could not open input as an OggVorbis file.\n\n");
exit(1);
}
1.6 +28 -3 vorbis/examples/vorbisfile_example.c
Index: vorbisfile_example.c
===================================================================
RCS file: /usr/local/cvsroot/vorbis/examples/vorbisfile_example.c,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -r1.5 -r1.6
--- vorbisfile_example.c 2001/02/26 03:50:38 1.5
+++ vorbisfile_example.c 2001/09/15 04:47:48 1.6
@@ -11,7 +11,7 @@
********************************************************************
function: simple example decoder using vorbisfile
- last mod: $Id: vorbisfile_example.c,v 1.5 2001/02/26 03:50:38 xiphmont Exp $
+ last mod: $Id: vorbisfile_example.c,v 1.6 2001/09/15 04:47:48 cwolf Exp $
********************************************************************/
@@ -36,6 +36,9 @@
OggVorbis_File vf;
int eof=0;
int current_section;
+ FILE *fpin=NULL;
+ FILE *fpout=NULL;
+ char msg[512];
#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
/* Beware the evil ifdef. We avoid these where we can, but this one we
@@ -44,7 +47,29 @@
_setmode( _fileno( stdout ), _O_BINARY );
#endif
- if(ov_open(stdin, &vf, NULL, 0) < 0) {
+ if (argc == 3)
+ {
+ if ((fpin = fopen(argv[1], "rb")) == (FILE*)NULL)
+ {
+ (void)sprintf(msg, "Can't open %s for reading.", argv[1]);
+ perror(msg);
+ return 1;
+ }
+
+ if ((fpout = fopen(argv[2], "wb")) == (FILE*)NULL)
+ {
+ (void)sprintf(msg, "Can't open %s for writing.", argv[2]);
+ perror(msg);
+ return 1;
+ }
+ }
+ else
+ {
+ fpin = stdin;
+ fpout = stdout;
+ }
+
+ if(ov_open(fpin, &vf, NULL, 0) < 0) {
fprintf(stderr,"Input does not appear to be an Ogg bitstream.\n");
exit(1);
}
@@ -75,7 +100,7 @@
} else {
/* we don't bother dealing with sample rate changes, etc, but
you'll have to*/
- fwrite(pcmout,1,ret,stdout);
+ fwrite(pcmout,1,ret,fpout);
}
}
--- >8 ----
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