On Fri, 10 Jan 2003, Troy Benjegerdes wrote:
> > > results in alsa-kernel/core/pcm_memory.c:alloc_pcm_pages() getting
> > > called with substream->dma_type= SNDRV_PCM_DMA_TYPE_UNKNOWN.
> >
> > oh, you found a bug :) it was introduced due to my last change to pcm
> > pre-allocator. now fixed on cvs.
> >
> > thanks for your report!
>
> Okay, now we're getting somewhere.. I'm not getting any errors anymore.
> The reciever (hardware AC3 decoder) is recognizing I'm sending it
> something other than PCM, but no sound comes out and none of the dolby
> digital or other indicators light up. Any ideas?
Please, use this patch and try to change '#if 0' to '#if 1' until it
works (any combination):
Index: ac3spdif.c
===================================================================
RCS file: /cvsroot/alsa/alsa-tools/ac3dec/ac3spdif.c,v
retrieving revision 1.4
diff -u -r1.4 ac3spdif.c
--- ac3spdif.c 8 Jan 2003 11:30:04 -0000 1.4
+++ ac3spdif.c 11 Jan 2003 09:52:32 -0000
@@ -154,10 +154,15 @@
done_banner = 1;
}
-#ifndef _a_b_c_d_e_f /* WORDS_BIGENDIAN */
+#if 0
// extract_ac3 seems to write swabbed data
swab(&buf[10], &buf[10], syncinfo.frame_size * 2 - 2);
#endif
+
+#if 0
+ swab(buf, buf, (syncinfo.frame_size * 2 - 2) + 10);
+#endif
+
res = output_play((short *)buf, BLOCK_SIZE / 2 / 2); /* 2 channels, 16-bit
samples */
ret = ret < 0 ? ret : res;
bzero(buf,BLOCK_SIZE);
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs
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