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aiffparse: Add support for 32 bit and 64 bit floating point formats

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This commit is contained in:
Sebastian Dröge 2011-03-24 10:08:59 +01:00
parent 5c97b148a9
commit e6a4b71b90
2 changed files with 43 additions and 16 deletions
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34
gst/aiff/aiffparse.c
View file

@ -655,19 +655,37 @@ gst_aiff_parse_parse_comm (GstAiffParse * aiff, GstBuffer * buf)
aiff->width = GST_ROUND_UP_8 (aiff->depth);
aiff->rate = (int) gst_aiff_parse_read_IEEE80 (data + 8);
aiff->floating_point = FALSE;
if (aiff->is_aifc) {
guint32 fourcc = GST_READ_UINT32_LE (data + 18);
/* We only support the 'trivial' uncompressed AIFC, but it can be
* either big or little endian */
if (GST_READ_UINT32_LE (data + 18) == GST_MAKE_FOURCC ('N', 'O', 'N', 'E'))
switch (fourcc) {
case GST_MAKE_FOURCC ('N', 'O', 'N', 'E'):
aiff->endianness = G_BIG_ENDIAN;
else if (GST_READ_UINT32_LE (data + 18) ==
GST_MAKE_FOURCC ('s', 'o', 'w', 't'))
break;
case GST_MAKE_FOURCC ('s', 'o', 'w', 't'):
aiff->endianness = G_LITTLE_ENDIAN;
else {
break;
case GST_MAKE_FOURCC ('F', 'L', '3', '2'):
case GST_MAKE_FOURCC ('f', 'l', '3', '2'):
aiff->floating_point = TRUE;
aiff->width = aiff->depth = 32;
aiff->endianness = G_BIG_ENDIAN;
break;
case GST_MAKE_FOURCC ('f', 'l', '6', '4'):
aiff->floating_point = TRUE;
aiff->width = aiff->depth = 64;
aiff->endianness = G_BIG_ENDIAN;
break;
default:
GST_WARNING_OBJECT (aiff, "Unsupported compression in AIFC "
"file: %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (GST_READ_UINT32_LE (data + 18)));
return FALSE;
}
} else
aiff->endianness = G_BIG_ENDIAN;
@ -719,12 +737,20 @@ gst_aiff_parse_create_caps (GstAiffParse * aiff)
{
GstCaps *caps;
if (aiff->floating_point) {
caps = gst_caps_new_simple ("audio/x-raw-float",
"width", G_TYPE_INT, aiff->width,
"channels", G_TYPE_INT, aiff->channels,
"endianness", G_TYPE_INT, aiff->endianness,
"rate", G_TYPE_INT, aiff->rate, NULL);
} else {
caps = gst_caps_new_simple ("audio/x-raw-int",
"width", G_TYPE_INT, aiff->width,
"depth", G_TYPE_INT, aiff->depth,
"channels", G_TYPE_INT, aiff->channels,
"endianness", G_TYPE_INT, aiff->endianness,
"rate", G_TYPE_INT, aiff->rate, "signed", G_TYPE_BOOLEAN, TRUE, NULL);
}
GST_DEBUG_OBJECT (aiff, "Created caps: %" GST_PTR_FORMAT, caps);
return caps;

1
gst/aiff/aiffparse.h
View file

@ -77,6 +77,7 @@ struct _GstAiffParse {
guint16 width;
guint16 depth;
guint32 endianness;
gboolean floating_point;
/* real bytes per second used or 0 when no bitrate is known */
guint32 bps;