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

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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
This commit is contained in:
Mohamed Tarek 2009-05-22 20:23:38 +00:00
parent 694b3b734f
commit b63028d80a
3 changed files with 86 additions and 10 deletions
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18
apps/codecs/libcook/main.c
View file

@ -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);
}