Modify the test program to read audio frames from a memory buffer rather

than a file descriptor, to make the decoding process as much similar 
as to how it should be in rockbox.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21042 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 11 insertions, 7 deletions

diff --git a/apps/codecs/libcook/main.c b/apps/codecs/libcook/main.c
index b0b2829..3557b15 100644
--- a/apps/codecs/libcook/main.c
+++ b/apps/codecs/libcook/main.c
@@ -37,6 +37,7 @@
 #  endif
 #endif
 
+#define DATA_HEADER_SIZE 18 /* size of DATA chunk header in a rm file */
 static unsigned char wav_header[44]={
     'R','I','F','F',//  0 - ChunkID
     0,0,0,0,        //  4 - ChunkSize (filesize-8)
@@ -127,7 +128,6 @@ int main(int argc, char *argv[])
     int fd_out;
 #endif
     int16_t outbuf[2048];
-    uint8_t inbuf[1024];
     uint16_t fs,sps,h;
     uint32_t packet_count;
     COOKContext q;
@@ -149,6 +149,10 @@ int main(int argc, char *argv[])
         return -1;
     }
     
+    /* copy the input rm file to a memory buffer */
+    uint8_t * filebuf = (uint8_t *)calloc((int)filesize(fd),sizeof(uint8_t));
+    read(fd,filebuf,filesize(fd)); 
+
     fd_dec = open_wav("output.wav");
     if (fd_dec < 0) {
         DEBUGF("Error creating output file\n");
@@ -169,11 +173,12 @@ int main(int argc, char *argv[])
         packet_count += h - (packet_count % h);
         rmctx.nb_packets = packet_count;
     }
+
+    /* change the buffer pointer to point at the first audio frame */
+    advance_buffer(&filebuf, rmctx.data_offset+ DATA_HEADER_SIZE);
     while(packet_count)
     {  
-        
-        memset(pkt.data,0,sizeof(pkt.data));
-        rm_get_packet(fd, &rmctx, &pkt);
+        rm_get_packet_membuf(&filebuf, &rmctx, &pkt);
         DEBUGF("total frames = %d packet count = %d output counter = %d \n",rmctx.audio_pkt_cnt*(fs/sps), packet_count,rmctx.audio_pkt_cnt);
         for(i = 0; i < rmctx.audio_pkt_cnt*(fs/sps) ; i++)
         { 
@@ -181,12 +186,11 @@ int main(int argc, char *argv[])
             #ifdef DUMP_RAW_FRAMES 
               snprintf(filename,sizeof(filename),"dump%d.raw",++x);
               fd_out = open(filename,O_WRONLY|O_CREAT|O_APPEND);           
-              write(fd_out,pkt.data+i*sps,sps);  
+              write(fd_out,pkt.frames[i],sps);  
               close(fd_out);
             #endif
 
-            memcpy(inbuf,pkt.data+i*sps,sps);
-            nb_frames = cook_decode_frame(&rmctx,&q, outbuf, &datasize, inbuf , rmctx.block_align);
+            nb_frames = cook_decode_frame(&rmctx,&q, outbuf, &datasize, pkt.frames[i] , rmctx.block_align);
             rmctx.frame_number++;
             write(fd_dec,outbuf,datasize);        
         }