mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-28 03:00:35 +00:00
Code Issues 1 Projects Releases Wiki Activity

wavparse: Use scale_ceil() functions from core instead of custom ones

Browse source
This commit is contained in:
Sebastian Dröge 2011-12-24 10:57:42 +01:00
parent a7d6690f92
commit 348afe1669
1 changed files with 19 additions and 44 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

63
gst/wavparse/gstwavparse.c
View file

@ -281,37 +281,6 @@ gst_wavparse_create_sourcepad (GstWavParse * wavparse)
GST_DEBUG_OBJECT (wavparse, "srcpad created");
}
/* Compute (value * nom) % denom, avoiding overflow. This can be used
* to perform ceiling or rounding division together with
* gst_util_uint64_scale[_int]. */
#define uint64_scale_modulo(val, nom, denom) \
((val % denom) * (nom % denom) % denom)
/* Like gst_util_uint64_scale, but performs ceiling division. */
static guint64
uint64_ceiling_scale_int (guint64 val, gint num, gint denom)
{
guint64 result = gst_util_uint64_scale_int (val, num, denom);
if (uint64_scale_modulo (val, num, denom) == 0)
return result;
else
return result + 1;
}
/* Like gst_util_uint64_scale, but performs ceiling division. */
static guint64
uint64_ceiling_scale (guint64 val, guint64 num, guint64 denom)
{
guint64 result = gst_util_uint64_scale (val, num, denom);
if (uint64_scale_modulo (val, num, denom) == 0)
return result;
else
return result + 1;
}
/* FIXME: why is that not in use? */
#if 0
static void
@ -792,12 +761,12 @@ gst_wavparse_time_to_bytepos (GstWavParse * wav, gint64 ts, gint64 * bytepos)
}
if (wav->bps > 0) {
*bytepos = uint64_ceiling_scale (ts, (guint64) wav->bps, GST_SECOND);
*bytepos = gst_util_uint64_scale_ceil (ts, (guint64) wav->bps, GST_SECOND);
return TRUE;
} else if (wav->fact) {
guint64 bps =
gst_util_uint64_scale_int (wav->datasize, wav->rate, wav->fact);
*bytepos = uint64_ceiling_scale (ts, bps, GST_SECOND);
*bytepos = gst_util_uint64_scale_ceil (ts, bps, GST_SECOND);
return TRUE;
}
@ -1159,12 +1128,14 @@ gst_wavparse_calculate_duration (GstWavParse * wav)
if (wav->bps > 0) {
GST_INFO_OBJECT (wav, "Got datasize %" G_GUINT64_FORMAT, wav->datasize);
wav->duration =
uint64_ceiling_scale (wav->datasize, GST_SECOND, (guint64) wav->bps);
gst_util_uint64_scale_ceil (wav->datasize, GST_SECOND,
(guint64) wav->bps);
GST_INFO_OBJECT (wav, "Got duration (bps) %" GST_TIME_FORMAT,
GST_TIME_ARGS (wav->duration));
return TRUE;
} else if (wav->fact) {
wav->duration = uint64_ceiling_scale_int (GST_SECOND, wav->fact, wav->rate);
wav->duration =
gst_util_uint64_scale_int_ceil (GST_SECOND, wav->fact, wav->rate);
GST_INFO_OBJECT (wav, "Got duration (fact) %" GST_TIME_FORMAT,
GST_TIME_ARGS (wav->duration));
return TRUE;
@ -1976,9 +1947,10 @@ iterate_adapter:
if (wav->bps > 0) {
/* and timestamps if we have a bitrate, be careful for overflows */
timestamp = uint64_ceiling_scale (pos, GST_SECOND, (guint64) wav->bps);
timestamp =
gst_util_uint64_scale_ceil (pos, GST_SECOND, (guint64) wav->bps);
next_timestamp =
uint64_ceiling_scale (nextpos, GST_SECOND, (guint64) wav->bps);
gst_util_uint64_scale_ceil (nextpos, GST_SECOND, (guint64) wav->bps);
duration = next_timestamp - timestamp;
/* update current running segment position */
@ -1989,8 +1961,8 @@ iterate_adapter:
guint64 bps =
gst_util_uint64_scale_int (wav->datasize, wav->rate, wav->fact);
/* and timestamps if we have a bitrate, be careful for overflows */
timestamp = uint64_ceiling_scale (pos, GST_SECOND, bps);
next_timestamp = uint64_ceiling_scale (nextpos, GST_SECOND, bps);
timestamp = gst_util_uint64_scale_ceil (pos, GST_SECOND, bps);
next_timestamp = gst_util_uint64_scale_ceil (nextpos, GST_SECOND, bps);
duration = next_timestamp - timestamp;
} else {
/* no bitrate, all we know is that the first sample has timestamp 0, all
@ -2277,10 +2249,12 @@ gst_wavparse_sink_event (GstPad * pad, GstEvent * event)
if (bps) {
if (start >= 0)
start =
uint64_ceiling_scale (start, GST_SECOND, (guint64) wav->bps);
gst_util_uint64_scale_ceil (start, GST_SECOND,
(guint64) wav->bps);
if (stop >= 0)
stop =
uint64_ceiling_scale (stop, GST_SECOND, (guint64) wav->bps);
gst_util_uint64_scale_ceil (stop, GST_SECOND,
(guint64) wav->bps);
}
}
} else {
@ -2395,13 +2369,14 @@ gst_wavparse_pad_convert (GstPad * pad,
"src=%" G_GINT64_FORMAT ", offset=%" G_GINT64_FORMAT, src_value,
wavparse->offset);
if (wavparse->bps > 0)
*dest_value = uint64_ceiling_scale (src_value, GST_SECOND,
*dest_value = gst_util_uint64_scale_ceil (src_value, GST_SECOND,
(guint64) wavparse->bps);
else if (wavparse->fact) {
guint64 bps = uint64_ceiling_scale_int (wavparse->datasize,
guint64 bps = gst_util_uint64_scale_int_ceil (wavparse->datasize,
wavparse->rate, wavparse->fact);
*dest_value = uint64_ceiling_scale_int (src_value, GST_SECOND, bps);
*dest_value =
gst_util_uint64_scale_int_ceil (src_value, GST_SECOND, bps);
} else {
res = FALSE;
}