int sample_rates [] = { 44100, 48000, 32000, 22050, 16000, 96000 } ;
unsigned k ;
int errors = 0 ;
- float q=-.05;
+ int ch;
gen_windowed_sine (data_out, ARRAY_LEN (data_out), 0.95);
- while(q<1.){
- for (k = 0 ; k < ARRAY_LEN (sample_rates); k ++) {
- char filename [64] ;
- snprintf (filename, sizeof (filename), "vorbis_q%.1f_%u.ogg", q*10,sample_rates [k]);
-
- printf (" %-20s : ", filename);
- fflush (stdout);
-
- /* Set to know value. */
- set_data_in (data_in, ARRAY_LEN (data_in), 3.141);
-
- write_vorbis_data_or_die (filename, sample_rates [k], q, data_out, ARRAY_LEN (data_out));
- read_vorbis_data_or_die (filename, sample_rates [k], data_in, ARRAY_LEN (data_in));
-
- if (check_output (data_in, ARRAY_LEN (data_in), (.15f - .1f*q)) != 0)
- errors ++ ;
- else {
- puts ("ok");
- remove (filename);
+ for(ch=1;ch<=8;ch++){
+ float q=-.05;
+ printf("\nTesting %d channel%s\n\n",ch,ch==1?"":"s");
+ while(q<1.){
+ for (k = 0 ; k < ARRAY_LEN (sample_rates); k ++) {
+ char filename [64] ;
+ snprintf (filename, sizeof (filename), "vorbis_%dch_q%.1f_%u.ogg", ch,q*10,sample_rates [k]);
+
+ printf (" %-20s : ", filename);
+ fflush (stdout);
+
+ /* Set to know value. */
+ set_data_in (data_in, ARRAY_LEN (data_in), 3.141);
+
+ write_vorbis_data_or_die (filename, sample_rates [k], q, data_out, ARRAY_LEN (data_out),ch);
+ read_vorbis_data_or_die (filename, sample_rates [k], data_in, ARRAY_LEN (data_in));
+
+ if (check_output (data_in, ARRAY_LEN (data_in), (.15f - .1f*q)) != 0)
+ errors ++ ;
+ else {
+ puts ("ok");
+ remove (filename);
+ }
}
+ q+=.1;
}
- q+=.1;
}
if (errors)
/* The following function is basically a hacked version of the code in
* examples/encoder_example.c */
void
-write_vorbis_data_or_die (const char *filename, int srate, float q, const float * data, int count)
+write_vorbis_data_or_die (const char *filename, int srate, float q, const float * data, int count, int ch)
{
FILE * file ;
ogg_stream_state os;
vorbis_info_init (&vi);
- ret = vorbis_encode_init_vbr (&vi,1,srate,q);
+ ret = vorbis_encode_init_vbr (&vi,ch,srate,q);
if (ret) {
printf ("vorbis_encode_init_vbr return %d\n", ret) ;
exit (1) ;
{
/* expose the buffer to submit data */
float **buffer = vorbis_analysis_buffer (&vd,count);
+ int i;
- memcpy (buffer [0], data, count * sizeof (float)) ;
+ for(i=0;i<ch;i++)
+ memcpy (buffer [i], data, count * sizeof (float)) ;
/* tell the library how much we actually submitted */
vorbis_analysis_wrote (&vd,count);
ogg_sync_init (&oy);
{
- buffer = ogg_sync_buffer (&oy,4096);
- bytes = fread (buffer,1,4096,file);
+ /* fragile! Assumes all of our headers will fit in the first 8kB,
+ which currently they will */
+ buffer = ogg_sync_buffer (&oy,8192);
+ bytes = fread (buffer,1,8192,file);
ogg_sync_wrote (&oy,bytes);
if(ogg_sync_pageout (&oy,&og) != 1) {
- if(bytes < 4096) {
+ if(bytes < 8192) {
printf ("Out of data.\n") ;
goto done_decode ;
}
i = 0;
while ( i < 2) {
while (i < 2) {
+
int result = ogg_sync_pageout (&oy,&og);
if(result == 0)
break;
if(result==1) {
ogg_stream_pagein(&os,&og);
- while (i < 2) {
- result = ogg_stream_packetout (&os,&op);
- if (result == 0)
- goto done_decode;
- if (result < 0) {
- fprintf (stderr,"Corrupt secondary header. Exiting.\n");
- exit(1);
+ while (i < 2) {
+ result = ogg_stream_packetout (&os,&op);
+ if (result == 0) break;
+ if (result < 0) {
+ fprintf (stderr,"Corrupt secondary header. Exiting.\n");
+ exit(1);
+ }
+ vorbis_synthesis_headerin (&vi,&vc,&op);
+ i++;
}
- vorbis_synthesis_headerin (&vi,&vc,&op);
- i++;
}
}
- }
-
- buffer = ogg_sync_buffer (&oy,4096);
- bytes = fread (buffer,1,4096,file);
- if (bytes == 0 && i < 2) {
- fprintf (stderr,"End of file before finding all Vorbis headers!\n");
- exit (1);
- }
- ogg_sync_wrote (&oy,bytes);
- }
+ buffer = ogg_sync_buffer (&oy,4096);
+ bytes = fread (buffer,1,4096,file);
+ if (bytes == 0 && i < 2) {
+ fprintf (stderr,"End of file before finding all Vorbis headers!\n");
+ exit (1);
+ }
- if (vi.rate != srate) {
- printf ("\n\nError : File '%s' has sample rate of %ld when it should be %d.\n\n", filename, vi.rate, srate);
- exit (1) ;
- }
- if (vi.channels != 1) {
- printf ("\n\nError : File '%s' has %d channels, but should be mono.\n\n", filename, vi.channels);
- exit (1) ;
- }
+ ogg_sync_wrote (&oy,bytes);
+ }
- vorbis_synthesis_init (&vd,&vi);
- vorbis_block_init (&vd,&vb);
+ if (vi.rate != srate) {
+ printf ("\n\nError : File '%s' has sample rate of %ld when it should be %d.\n\n", filename, vi.rate, srate);
+ exit (1) ;
+ }
- while(!eos) {
- while (!eos) {
- int result = ogg_sync_pageout (&oy,&og);
- if (result == 0)
- break;
- if (result < 0) {
- fprintf (stderr,"Corrupt or missing data in bitstream; "
- "continuing...\n");
- } else {
- ogg_stream_pagein (&os,&og);
- while (1) {
- result = ogg_stream_packetout (&os,&op);
+ vorbis_synthesis_init (&vd,&vi);
+ vorbis_block_init (&vd,&vb);
- if (result == 0)
- break;
- if (result < 0) {
- /* no reason to complain; already complained above */
- } else {
+ while(!eos) {
+ while (!eos) {
+ int result = ogg_sync_pageout (&oy,&og);
+ if (result == 0)
+ break;
+ if (result < 0) {
+ fprintf (stderr,"Corrupt or missing data in bitstream; "
+ "continuing...\n");
+ } else {
+ ogg_stream_pagein (&os,&og);
+ while (1) {
+ result = ogg_stream_packetout (&os,&op);
+
+ if (result == 0)
+ break;
+ if (result < 0) {
+ /* no reason to complain; already complained above */
+ } else {
float **pcm;
- int samples;
+ int samples;
- if (vorbis_synthesis (&vb,&op) == 0)
- vorbis_synthesis_blockin(&vd,&vb);
- while ((samples = vorbis_synthesis_pcmout (&vd,&pcm)) > 0 && read_total < count) {
- int bout = samples < count ? samples : count;
- bout = read_total + bout > count ? count - read_total : bout;
+ if (vorbis_synthesis (&vb,&op) == 0)
+ vorbis_synthesis_blockin(&vd,&vb);
+ while ((samples = vorbis_synthesis_pcmout (&vd,&pcm)) > 0 && read_total < count) {
+ int bout = samples < count ? samples : count;
+ bout = read_total + bout > count ? count - read_total : bout;
- memcpy (data + read_total, pcm[0], bout * sizeof (float)) ;
+ memcpy (data + read_total, pcm[0], bout * sizeof (float)) ;
- vorbis_synthesis_read (&vd,bout);
- read_total += bout ;
+ vorbis_synthesis_read (&vd,bout);
+ read_total += bout ;
+ }
}
}
- }
- if (ogg_page_eos (&og)) eos = 1;
+ if (ogg_page_eos (&og)) eos = 1;
+ }
}
- }
if (!eos) {
buffer = ogg_sync_buffer (&oy,4096);
vorbis_dsp_clear (&vd);
vorbis_comment_clear (&vc);
vorbis_info_clear (&vi);
-
}
done_decode: