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gst/audioconvert/gstaudioconvert.c: convert channels correctly. convert correctly to unsigned.

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Original commit message from CVS:
* gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_channels):
convert channels correctly. convert correctly to unsigned.
This commit is contained in:
Benjamin Otte 2004-03-05 21:05:26 +00:00
parent c6ae4cb8ca
commit 043693d8d9
3 changed files with 26 additions and 16 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2004-03-05 Benjamin Otte <otte@gnome.org>
* gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_channels):
convert channels correctly. convert correctly to unsigned.
2004-03-05 Julien MOUTTE <julien@moutte.net>
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_change_state): Check if

2
common

@ -1 +1 @@
Subproject commit 874dab5c3461ad7487f1ae029256b6da82dddf6d
Subproject commit 4eb02711e49a6aadf900d6fd9d220c17115fec2a

35
gst/audioconvert/gstaudioconvert.c
View file

@ -589,16 +589,17 @@ gst_audio_convert_get_buffer (GstBuffer *buf, guint size)
static inline guint8 GUINT8_IDENTITY (guint8 x) { return x; }
static inline guint8 GINT8_IDENTITY (gint8 x) { return x; }
#define CONVERT_TO(to, from, type, sign, endianness, LE_FUNC, BE_FUNC) G_STMT_START{\
type value; \
memcpy (&value, from, sizeof (type)); \
from -= sizeof (type); \
value = (endianness == G_LITTLE_ENDIAN) ? LE_FUNC (value) : BE_FUNC (value); \
if (sign) { \
to = value; \
} else { \
to = (gint64) value - (1 << (sizeof (type) * 8 - 1)); \
} \
#define CONVERT_TO(to, from, type, sign, endianness, LE_FUNC, BE_FUNC) \
G_STMT_START{ \
type value; \
memcpy (&value, from, sizeof (type)); \
from -= sizeof (type); \
value = (endianness == G_LITTLE_ENDIAN) ? LE_FUNC (value) : BE_FUNC (value); \
if (sign) { \
to = value; \
} else { \
to = (gint64) value - (1 << (sizeof (type) * 8 - 1)); \
} \
}G_STMT_END;
static GstBuffer*
@ -680,7 +681,11 @@ gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *bu
format val; \
format* p = (format *) dest; \
int_value >>= (32 - this->srccaps.depth); \
val = (format) int_value; \
if (this->srccaps.sign) { \
val = (format) int_value; \
} else { \
val = (format) int_value + (1 << (this->srccaps.depth - 1)); \
} \
switch (this->srccaps.endianness) { \
case G_LITTLE_ENDIAN: \
val = le_func (val); \
@ -753,21 +758,21 @@ gst_audio_convert_channels (GstAudioConvert *this, GstBuffer *buf)
{
GstBuffer *ret;
gint i, count;
guint32 *src, *dest;
gint32 *src, *dest;
if (this->sinkcaps.channels == this->srccaps.channels)
return buf;
count = GST_BUFFER_SIZE (buf) / 4 / this->sinkcaps.channels;
ret = gst_audio_convert_get_buffer (buf, count * 4 * this->srccaps.channels);
src = (guint32 *) GST_BUFFER_DATA (buf);
dest = (guint32 *) GST_BUFFER_DATA (ret);
src = (gint32 *) GST_BUFFER_DATA (buf);
dest = (gint32 *) GST_BUFFER_DATA (ret);
if (this->sinkcaps.channels > this->srccaps.channels) {
for (i = 0; i < count; i++) {
*dest = *src >> 1;
src++;
*dest += (*src + 1) >> 1;
*dest += (*src >> 1) + (*src & 1);
src++;
dest++;
}