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audio-format: Use ORC for filling memory with silence samples

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This commit is contained in:
Sebastian Dröge 2013-11-03 12:22:33 +01:00
parent 4aafc3d39f
commit 081f009e25
2 changed files with 54 additions and 2 deletions
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37
gst-libs/gst/audio/audio-format.c
View file

@ -27,6 +27,12 @@
#include "gstaudiopack.h"
#ifdef HAVE_ORC
#include <orc/orcfunctions.h>
#else
#define orc_memset memset
#endif
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
# define audio_orc_unpack_s16le audio_orc_unpack_s16
# define audio_orc_unpack_s16be audio_orc_unpack_s16_swap
@ -453,14 +459,41 @@ gst_audio_format_fill_silence (const GstAudioFormatInfo * info,
if (info->flags & GST_AUDIO_FORMAT_FLAG_FLOAT ||
info->flags & GST_AUDIO_FORMAT_FLAG_SIGNED) {
/* float or signed always 0 */
memset (dest, 0, length);
orc_memset (dest, 0, length);
} else {
gint i, j, bps = info->width >> 3;
switch (bps) {
case 1:
memset (dest, info->silence[0], length);
orc_memset (dest, info->silence[0], length);
break;
case 2:{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
guint16 silence = GST_READ_UINT16_LE (info->silence);
#else
guint16 silence = GST_READ_UINT16_BE (info->silence);
#endif
audio_orc_splat_u16 (dest, silence, length / bps);
break;
}
case 4:{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
guint32 silence = GST_READ_UINT32_LE (info->silence);
#else
guint32 silence = GST_READ_UINT32_BE (info->silence);
#endif
audio_orc_splat_u32 (dest, silence, length / bps);
break;
}
case 8:{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
guint64 silence = GST_READ_UINT64_LE (info->silence);
#else
guint64 silence = GST_READ_UINT64_BE (info->silence);
#endif
audio_orc_splat_u64 (dest, silence, length / bps);
break;
}
default:
for (i = 0; i < length; i += bps) {
for (j = 0; j < bps; j++)

19
gst-libs/gst/audio/gstaudiopack.orc
View file

@ -336,3 +336,22 @@ copyq d1, s1
.source 8 s1 gdouble
swapq d1, s1
.function audio_orc_splat_u16
.dest 2 d1 guint16
.param 2 p1
copyw d1, p1
.function audio_orc_splat_u32
.dest 4 d1 guint32
.param 4 p1
copyl d1, p1
.function audio_orc_splat_u64
.dest 8 d1 guint64
.param 8 p1
copyq d1, p1