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gst/spectrum/gstspectrum.*: Use correct types for frame/fft counters and some minor cleanup.

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Original commit message from CVS:
* gst/spectrum/gstspectrum.c: (gst_spectrum_transform_ip):
* gst/spectrum/gstspectrum.h:
Use correct types for frame/fft counters and some minor
cleanup.
This commit is contained in:
Sebastian Dröge 2009-01-14 15:44:18 +00:00
parent b1c6dec543
commit f4b2d38c87
3 changed files with 19 additions and 15 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2009-01-14 Sebastian Dröge <sebastian.droege@collabora.co.uk>
* gst/spectrum/gstspectrum.c: (gst_spectrum_transform_ip):
* gst/spectrum/gstspectrum.h:
Use correct types for frame/fft counters and some minor
cleanup.
2009-01-14 Sebastian Dröge <sebastian.droege@collabora.co.uk>
Patch by: Lennart Poettering <lennart at poettering dot net>

23
gst/spectrum/gstspectrum.c
View file

@ -482,6 +482,8 @@ gst_spectrum_transform_ip (GstBaseTransform * trans, GstBuffer * buffer)
gfloat *spect_magnitude;
gfloat *spect_phase;
GstFFTF32 *fft_ctx;
const guint8 *data = GST_BUFFER_DATA (buffer);
guint size = GST_BUFFER_SIZE (buffer);
GST_LOG_OBJECT (spectrum, "input size: %d bytes", GST_BUFFER_SIZE (buffer));
@ -490,9 +492,6 @@ gst_spectrum_transform_ip (GstBaseTransform * trans, GstBuffer * buffer)
gst_spectrum_reset_state (spectrum);
}
/* Create a subbuffer to allow us to overwrite the buffer metadata later */
buffer = gst_buffer_create_sub (buffer, 0, GST_BUFFER_SIZE (buffer));
/* If we don't have a FFT context yet get one and
* allocate memory for everything
*/
@ -521,26 +520,26 @@ gst_spectrum_transform_ip (GstBaseTransform * trans, GstBuffer * buffer)
spect_phase = spectrum->spect_phase;
fft_ctx = spectrum->fft_ctx;
while (GST_BUFFER_SIZE (buffer) >= width * channels) {
while (size >= width * channels) {
/* Move the current frame into our ringbuffer and
* take the average of all channels
*/
spectrum->input[spectrum->input_pos] = 0.0;
if (fp && width == 4) {
gfloat *in = (gfloat *) GST_BUFFER_DATA (buffer);
gfloat *in = (gfloat *) data;
for (i = 0; i < channels; i++)
spectrum->input[spectrum->input_pos] += in[i];
} else if (fp && width == 8) {
gdouble *in = (gdouble *) GST_BUFFER_DATA (buffer);
gdouble *in = (gdouble *) data;
for (i = 0; i < channels; i++)
spectrum->input[spectrum->input_pos] += in[i];
} else if (!fp && width == 4) {
gint32 *in = (gint32 *) GST_BUFFER_DATA (buffer);
gint32 *in = (gint32 *) data;
for (i = 0; i < channels; i++)
spectrum->input[spectrum->input_pos] += ((gfloat) in[i]) / G_MAXINT32;
} else if (!fp && width == 2) {
gint16 *in = (gint16 *) GST_BUFFER_DATA (buffer);
gint16 *in = (gint16 *) data;
for (i = 0; i < channels; i++)
spectrum->input[spectrum->input_pos] += ((gfloat) in[i]) / G_MAXINT16;
} else {
@ -548,8 +547,8 @@ gst_spectrum_transform_ip (GstBaseTransform * trans, GstBuffer * buffer)
}
spectrum->input[spectrum->input_pos] /= channels;
GST_BUFFER_DATA (buffer) += width * channels;
GST_BUFFER_SIZE (buffer) -= width * channels;
data += width * channels;
size -= width * channels;
spectrum->input_pos = (spectrum->input_pos + 1) % nfft;
spectrum->num_frames++;
@ -612,9 +611,7 @@ gst_spectrum_transform_ip (GstBaseTransform * trans, GstBuffer * buffer)
}
}
g_assert (GST_BUFFER_SIZE (buffer) == 0);
gst_buffer_unref (buffer);
g_assert (size == 0);
return GST_FLOW_OK;
}

4
gst/spectrum/gstspectrum.h
View file

@ -49,9 +49,9 @@ struct _GstSpectrum
guint bands; /* number of spectrum bands */
gint threshold; /* energy level treshold */
guint num_frames; /* frame count (1 sample per channel)
guint64 num_frames; /* frame count (1 sample per channel)
* since last emit */
guint num_fft; /* number of FFTs since last emit */
guint64 num_fft; /* number of FFTs since last emit */
GstClockTime message_ts; /* starttime for next message */
/* <private> */