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gst/audioconvert/bufferframesconvert.c

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Original commit message from CVS:
2005-02-04  Andy Wingo  <wingo@pobox.com>

* gst/audioconvert/bufferframesconvert.c
(buffer_frames_convert_fixate): New function, fixates to 256
frames per buffer by default. (Much better than 1.)
(buffer_frames_convert_init): Set the fixate function for both src
and sink pad.
(buffer_frames_convert_link): After success setting nonfixed caps,
get the negotiated caps so we can know how many buffer-frames it
will be. No idea how this worked at all before.
This commit is contained in:
Andy Wingo 2005-02-04 15:40:38 +00:00
parent 0786f478c3
commit 9c1c858d24
2 changed files with 37 additions and 0 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2005-02-04 Andy Wingo <wingo@pobox.com>
* gst/audioconvert/bufferframesconvert.c
(buffer_frames_convert_fixate): New function, fixates to 256
frames per buffer by default. (Much better than 1.)
(buffer_frames_convert_init): Set the fixate function for both src
and sink pad.
(buffer_frames_convert_link): After success setting nonfixed caps,
get the negotiated caps so we can know how many buffer-frames it
will be. No idea how this worked at all before.
2005-02-05 Jan Schmidt <thaytan@mad.scientist.com>
* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_init),

26
gst/audioconvert/bufferframesconvert.c
View file

@ -93,6 +93,8 @@ static GstElementStateReturn buffer_frames_convert_change_state (GstElement *
static GstCaps *buffer_frames_convert_getcaps (GstPad * pad);
static GstPadLinkReturn buffer_frames_convert_link (GstPad * pad,
const GstCaps * caps);
static GstCaps *buffer_frames_convert_fixate (GstPad * pad,
const GstCaps * caps);
static void buffer_frames_convert_chain (GstPad * sinkpad, GstData * _data);
@ -154,12 +156,14 @@ buffer_frames_convert_init (BufferFramesConvert * this)
gst_pad_set_link_function (this->sinkpad, buffer_frames_convert_link);
gst_pad_set_getcaps_function (this->sinkpad, buffer_frames_convert_getcaps);
gst_pad_set_chain_function (this->sinkpad, buffer_frames_convert_chain);
gst_pad_set_fixate_function (this->sinkpad, buffer_frames_convert_fixate);
this->srcpad = gst_pad_new_from_template
(gst_static_pad_template_get (&src_static_template), "src");
gst_element_add_pad (GST_ELEMENT (this), this->srcpad);
gst_pad_set_link_function (this->srcpad, buffer_frames_convert_link);
gst_pad_set_getcaps_function (this->srcpad, buffer_frames_convert_getcaps);
gst_pad_set_fixate_function (this->sinkpad, buffer_frames_convert_fixate);
this->in_buffer_samples = -1;
this->out_buffer_samples = -1;
@ -216,6 +220,26 @@ buffer_frames_convert_getcaps (GstPad * pad)
return ret;
}
static GstCaps *
buffer_frames_convert_fixate (GstPad * pad, const GstCaps * caps)
{
GstCaps *newcaps;
GstStructure *structure;
newcaps = gst_caps_new_full (gst_structure_copy (gst_caps_get_structure
(caps, 0)), NULL);
structure = gst_caps_get_structure (newcaps, 0);
if (gst_caps_structure_fixate_field_nearest_int (structure,
"buffer-frames", 256)) {
return newcaps;
}
gst_caps_free (newcaps);
return NULL;
}
static GstPadLinkReturn
buffer_frames_convert_link (GstPad * pad, const GstCaps * caps)
{
@ -244,6 +268,8 @@ buffer_frames_convert_link (GstPad * pad, const GstCaps * caps)
ret = gst_pad_try_set_caps_nonfixed (otherpad, othercaps);
if (GST_PAD_LINK_FAILED (ret))
return ret;
gst_caps_free (othercaps);
othercaps = gst_caps_copy (gst_pad_get_negotiated_caps (otherpad));
/* it's ok, let's record our data */
sinkstructure =