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gst/wavenc/gstwavenc.c: Don't allow width=32,depth=24 as input. WAV requires that the width is the next integer multi...

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Original commit message from CVS:
* gst/wavenc/gstwavenc.c: (gst_wavenc_chain):
Don't allow width=32,depth=24 as input. WAV requires that the width
is the next integer multiply of 8 from the depth.
This commit is contained in:
Sebastian Dröge 2008-10-28 14:56:08 +00:00
parent 09e449609f
commit 0e1f7b54bb
2 changed files with 8 additions and 53 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2008-10-28 Sebastian Dröge <slomo@circular-chaos.org>
* gst/wavenc/gstwavenc.c: (gst_wavenc_chain):
Don't allow width=32,depth=24 as input. WAV requires that the width
is the next integer multiply of 8 from the depth.
2008-10-28 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/rtp/gstrtpL16depay.c: (gst_rtp_L16_depay_setcaps):

55
gst/wavenc/gstwavenc.c
View file

@ -79,7 +79,7 @@ GST_ELEMENT_DETAILS ("WAV audio muxer",
"channels = (int) [ 1, 2 ], " \
"endianness = (int) LITTLE_ENDIAN, " \
"width = (int) 32, " \
"depth = (int) { 24, 32 }, " \
"depth = (int) 32, " \
"signed = (boolean) true" \
"; " \
"audio/x-raw-int, " \
@ -608,52 +608,6 @@ gst_wavenc_event (GstPad * pad, GstEvent * event)
return res;
}
/* Copied from gst-plugins-base/gst/audioconvert/audioconvert.c */
#define READ24_FROM_LE(p) (p[0] | (p[1] << 8) | (p[2] << 16))
#define WRITE24_TO_LE(p,v) p[0] = v & 0xff; p[1] = (v >> 8) & 0xff; p[2] = (v >> 16) & 0xff
/* Correctly format samples with width!=depth for the wav format, i.e.
* have the data in the highest depth bits and all others zero */
static void
gst_wavenc_format_samples (GstBuffer * buf, guint width, guint depth)
{
guint8 *data = GST_BUFFER_DATA (buf);
guint nsamples = (GST_BUFFER_SIZE (buf) * 8) / width;
guint32 tmp;
for (; nsamples; nsamples--) {
switch (width) {
case 8:
tmp = *data;
*data = *data << (width - depth);
data += 1;
break;
case 16:
tmp = GST_READ_UINT16_LE (data);
tmp = tmp << (width - depth);
GST_WRITE_UINT16_LE (data, tmp);
data += 2;
break;
case 24:
tmp = READ24_FROM_LE (data);
tmp = tmp << (width - depth);
WRITE24_TO_LE (data, tmp);
data += 3;
break;
case 32:
tmp = GST_READ_UINT32_LE (data);
tmp = tmp << (width - depth);
GST_WRITE_UINT32_LE (data, tmp);
data += 4;
break;
}
}
}
#undef READ24_FROM_LE
#undef WRITE24_TO_LE
static GstFlowReturn
gst_wavenc_chain (GstPad * pad, GstBuffer * buf)
{
@ -679,12 +633,7 @@ gst_wavenc_chain (GstPad * pad, GstBuffer * buf)
GST_LOG_OBJECT (wavenc, "pushing %u bytes raw audio, ts=%" GST_TIME_FORMAT,
GST_BUFFER_SIZE (buf), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
if (wavenc->width != wavenc->depth) {
buf = gst_buffer_make_writable (buf);
gst_wavenc_format_samples (buf, wavenc->width, wavenc->depth);
} else {
buf = gst_buffer_make_metadata_writable (buf);
}
buf = gst_buffer_make_metadata_writable (buf);
gst_buffer_set_caps (buf, GST_PAD_CAPS (wavenc->srcpad));
GST_BUFFER_OFFSET (buf) = WAV_HEADER_LEN + wavenc->length;