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ext/mad/gstmad.c: Merge patch from Radoslaw Szkodzinski (bug 326734)

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Original commit message from CVS:
* ext/mad/gstmad.c: (gst_mad_convert_src), (scale),
(gst_mad_check_caps_reset), (gst_mad_chain):
Merge patch from Radoslaw Szkodzinski (bug 326734)
This commit is contained in:
Radoslaw Szkodzinski 2006-01-31 22:03:30 +00:00 committed by Jan Schmidt
parent aef0f9cfb1
commit bcd611761c
2 changed files with 27 additions and 14 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2006-01-31 Jan Schmidt <thaytan@mad.scientist.com>
* ext/mad/gstmad.c: (gst_mad_convert_src), (scale),
(gst_mad_check_caps_reset), (gst_mad_chain):
Merge patch from Radoslaw Szkodzinski (bug 326734)
2006-01-31 Stefan Kost <ensonic@users.sf.net>
* ext/mad/gstid3tag.c: (tag_list_to_id3_tag_foreach),

35
ext/mad/gstmad.c
View file

@ -126,8 +126,8 @@ GST_STATIC_PAD_TEMPLATE ("src",
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) " G_STRINGIFY (G_BYTE_ORDER) ", "
"signed = (boolean) true, "
"width = (int) 16, "
"depth = (int) 16, "
"width = (int) 32, "
"depth = (int) 32, "
"rate = (int) { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, "
"channels = (int) [ 1, 2 ]")
);
@ -476,7 +476,7 @@ gst_mad_convert_src (GstPad * pad, GstFormat src_format, gint64 src_value,
mad = GST_MAD (GST_PAD_PARENT (pad));
bytes_per_sample = MAD_NCHANNELS (&mad->frame.header) << 1;
bytes_per_sample = MAD_NCHANNELS (&mad->frame.header) * 4;
switch (src_format) {
case GST_FORMAT_BYTES:
@ -889,11 +889,13 @@ gst_mad_src_event (GstPad * pad, GstEvent * event)
return res;
}
static inline signed int
static inline gint32
scale (mad_fixed_t sample)
{
#if MAD_F_FRACBITS < 28
/* round */
sample += (1L << (MAD_F_FRACBITS - 16));
sample += (1L << (28 - MAD_F_FRACBITS - 1));
#endif
/* clip */
if (sample >= MAD_F_ONE)
@ -901,8 +903,13 @@ scale (mad_fixed_t sample)
else if (sample < -MAD_F_ONE)
sample = -MAD_F_ONE;
#if MAD_F_FRACBITS < 28
/* quantize */
return sample >> (MAD_F_FRACBITS + 1 - 16);
sample >>= (28 - MAD_F_FRACBITS);
#endif
/* convert from 29 bits to 32 bits */
return (gint32) (sample << 3);
}
/* do we need this function? */
@ -1265,8 +1272,8 @@ gst_mad_check_caps_reset (GstMad * mad)
caps = gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE,
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"width", G_TYPE_INT, 32,
"depth", G_TYPE_INT, 32,
"rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, nchannels, NULL);
gst_pad_set_caps (mad->srcpad, caps);
@ -1519,13 +1526,13 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
to skip and send the remaining pcm samples */
GstBuffer *outbuffer = NULL;
gint16 *outdata;
gint32 *outdata;
mad_fixed_t const *left_ch, *right_ch;
/* will attach the caps to the buffer */
result =
gst_pad_alloc_buffer_and_set_caps (mad->srcpad, 0,
nsamples * mad->channels * 2, GST_PAD_CAPS (mad->srcpad),
nsamples * mad->channels * 4, GST_PAD_CAPS (mad->srcpad),
&outbuffer);
if (result != GST_FLOW_OK) {
/* Head for the exit, dropping samples as we go */
@ -1538,7 +1545,7 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
left_ch = mad->synth.pcm.samples[0];
right_ch = mad->synth.pcm.samples[1];
outdata = (gint16 *) GST_BUFFER_DATA (outbuffer);
outdata = (gint32 *) GST_BUFFER_DATA (outbuffer);
GST_DEBUG ("mad out timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (time_offset));
@ -1552,14 +1559,14 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
gint count = nsamples;
while (count--) {
*outdata++ = scale (*left_ch++) & 0xffff;
*outdata++ = scale (*left_ch++) & 0xffffffff;
}
} else {
gint count = nsamples;
while (count--) {
*outdata++ = scale (*left_ch++) & 0xffff;
*outdata++ = scale (*right_ch++) & 0xffff;
*outdata++ = scale (*left_ch++) & 0xffffffff;
*outdata++ = scale (*right_ch++) & 0xffffffff;
}
}