mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-04 23:46:43 +00:00
1303 lines
37 KiB
C
1303 lines
37 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wtay@chello.be>
|
|
* 2005 Wim Taymans <wim@fluendo.com>
|
|
* 2007 Andy Wingo <wingo at pobox.com>
|
|
* 2008 Sebastian Dröge <slomo@circular-chaos.rg>
|
|
*
|
|
* interleave.c: interleave samples, mostly based on adder.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/* TODO:
|
|
* - handle caps changes
|
|
* - handle more queries/events
|
|
*/
|
|
|
|
/**
|
|
* SECTION:element-interleave
|
|
* @see_also: deinterleave
|
|
*
|
|
* Merges separate mono inputs into one interleaved stream.
|
|
*
|
|
* This element handles all raw floating point sample formats and all signed integer sample formats. The first
|
|
* caps on one of the sinkpads will set the caps of the output so usually an audioconvert element should be
|
|
* placed before every sinkpad of interleave.
|
|
*
|
|
* It's possible to change the number of channels while the pipeline is running by adding or removing
|
|
* some of the request pads but this will change the caps of the output buffers. Changing the input
|
|
* caps is _not_ supported yet.
|
|
*
|
|
* The channel number of every sinkpad in the out can be retrieved from the "channel" property of the pad.
|
|
*
|
|
* <refsect2>
|
|
* <title>Example launch line</title>
|
|
* |[
|
|
* gst-launch filesrc location=file.mp3 ! decodebin ! audioconvert ! "audio/x-raw-int,channels=2" ! deinterleave name=d interleave name=i ! audioconvert ! wavenc ! filesink location=test.wav d.src0 ! queue ! audioconvert ! i.sink1 d.src1 ! queue ! audioconvert ! i.sink0
|
|
* ]| Decodes and deinterleaves a Stereo MP3 file into separate channels and
|
|
* then interleaves the channels again to a WAV file with the channel with the
|
|
* channels exchanged.
|
|
* |[
|
|
* gst-launch interleave name=i ! audioconvert ! wavenc ! filesink location=file.wav filesrc location=file1.wav ! decodebin ! audioconvert ! "audio/x-raw-int,channels=1" ! queue ! i.sink0 filesrc location=file2.wav ! decodebin ! audioconvert ! "audio/x-raw-int,channels=1" ! queue ! i.sink1
|
|
* ]| Interleaves two Mono WAV files to a single Stereo WAV file.
|
|
* </refsect2>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <gst/gst.h>
|
|
#include <string.h>
|
|
#include "interleave.h"
|
|
|
|
#include <gst/audio/multichannel.h>
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_interleave_debug);
|
|
#define GST_CAT_DEFAULT gst_interleave_debug
|
|
|
|
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink%d",
|
|
GST_PAD_SINK,
|
|
GST_PAD_REQUEST,
|
|
GST_STATIC_CAPS ("audio/x-raw-int, "
|
|
"rate = (int) [ 1, MAX ], "
|
|
"channels = (int) 1, "
|
|
"endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, "
|
|
"width = (int) { 8, 16, 24, 32 }, "
|
|
"depth = (int) [ 1, 32 ], "
|
|
"signed = (boolean) true; "
|
|
"audio/x-raw-float, "
|
|
"rate = (int) [ 1, MAX ], "
|
|
"channels = (int) 1, "
|
|
"endianness = (int) { LITTLE_ENDIAN , BIG_ENDIAN }, "
|
|
"width = (int) { 32, 64 }")
|
|
);
|
|
|
|
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("audio/x-raw-int, "
|
|
"rate = (int) [ 1, MAX ], "
|
|
"channels = (int) [ 1, MAX ], "
|
|
"endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, "
|
|
"width = (int) { 8, 16, 24, 32 }, "
|
|
"depth = (int) [ 1, 32 ], "
|
|
"signed = (boolean) true; "
|
|
"audio/x-raw-float, "
|
|
"rate = (int) [ 1, MAX ], "
|
|
"channels = (int) [ 1, MAX ], "
|
|
"endianness = (int) { LITTLE_ENDIAN , BIG_ENDIAN }, "
|
|
"width = (int) { 32, 64 }")
|
|
);
|
|
|
|
#define MAKE_FUNC(type) \
|
|
static void interleave_##type (guint##type *out, guint##type *in, \
|
|
guint stride, guint nframes) \
|
|
{ \
|
|
gint i; \
|
|
\
|
|
for (i = 0; i < nframes; i++) { \
|
|
*out = in[i]; \
|
|
out += stride; \
|
|
} \
|
|
}
|
|
|
|
MAKE_FUNC (8);
|
|
MAKE_FUNC (16);
|
|
MAKE_FUNC (32);
|
|
MAKE_FUNC (64);
|
|
|
|
static void
|
|
interleave_24 (guint8 * out, guint8 * in, guint stride, guint nframes)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; i < nframes; i++) {
|
|
memcpy (out, in, 3);
|
|
out += stride * 3;
|
|
in += 3;
|
|
}
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GstPad parent;
|
|
guint channel;
|
|
} GstInterleavePad;
|
|
|
|
enum
|
|
{
|
|
PROP_PAD_0,
|
|
PROP_PAD_CHANNEL
|
|
};
|
|
|
|
static void gst_interleave_pad_class_init (GstPadClass * klass);
|
|
|
|
#define GST_TYPE_INTERLEAVE_PAD (gst_interleave_pad_get_type())
|
|
#define GST_INTERLEAVE_PAD(pad) (G_TYPE_CHECK_INSTANCE_CAST((pad),GST_TYPE_INTERLEAVE_PAD,GstInterleavePad))
|
|
#define GST_INTERLEAVE_PAD_CAST(pad) ((GstInterleavePad *) pad)
|
|
#define GST_IS_INTERLEAVE_PAD(pad) (G_TYPE_CHECK_INSTANCE_TYPE((pad),GST_TYPE_INTERLEAVE_PAD))
|
|
static GType
|
|
gst_interleave_pad_get_type (void)
|
|
{
|
|
static GType type = 0;
|
|
|
|
if (G_UNLIKELY (type == 0)) {
|
|
type = g_type_register_static_simple (GST_TYPE_PAD,
|
|
g_intern_static_string ("GstInterleavePad"), sizeof (GstPadClass),
|
|
(GClassInitFunc) gst_interleave_pad_class_init,
|
|
sizeof (GstInterleavePad), NULL, 0);
|
|
}
|
|
return type;
|
|
}
|
|
|
|
static void
|
|
gst_interleave_pad_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstInterleavePad *self = GST_INTERLEAVE_PAD (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_PAD_CHANNEL:
|
|
g_value_set_uint (value, self->channel);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_interleave_pad_class_init (GstPadClass * klass)
|
|
{
|
|
GObjectClass *gobject_class = (GObjectClass *) klass;
|
|
|
|
gobject_class->get_property = gst_interleave_pad_get_property;
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_PAD_CHANNEL,
|
|
g_param_spec_uint ("channel",
|
|
"Channel number",
|
|
"Number of the channel of this pad in the output", 0, G_MAXUINT, 0,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
}
|
|
|
|
GST_BOILERPLATE (GstInterleave, gst_interleave, GstElement, GST_TYPE_ELEMENT);
|
|
|
|
enum
|
|
{
|
|
PROP_0,
|
|
PROP_CHANNEL_POSITIONS,
|
|
PROP_CHANNEL_POSITIONS_FROM_INPUT
|
|
};
|
|
|
|
static void gst_interleave_set_property (GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec);
|
|
static void gst_interleave_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec);
|
|
|
|
static GstPad *gst_interleave_request_new_pad (GstElement * element,
|
|
GstPadTemplate * templ, const gchar * name);
|
|
static void gst_interleave_release_pad (GstElement * element, GstPad * pad);
|
|
|
|
static GstStateChangeReturn gst_interleave_change_state (GstElement * element,
|
|
GstStateChange transition);
|
|
|
|
static gboolean gst_interleave_src_query (GstPad * pad, GstQuery * query);
|
|
|
|
static gboolean gst_interleave_src_event (GstPad * pad, GstEvent * event);
|
|
|
|
static gboolean gst_interleave_sink_event (GstPad * pad, GstEvent * event);
|
|
|
|
static gboolean gst_interleave_sink_setcaps (GstPad * pad, GstCaps * caps);
|
|
|
|
static GstCaps *gst_interleave_sink_getcaps (GstPad * pad);
|
|
|
|
static GstFlowReturn gst_interleave_collected (GstCollectPads * pads,
|
|
GstInterleave * self);
|
|
|
|
static void
|
|
gst_interleave_finalize (GObject * object)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (object);
|
|
|
|
if (self->collect) {
|
|
gst_object_unref (self->collect);
|
|
self->collect = NULL;
|
|
}
|
|
|
|
if (self->channel_positions
|
|
&& self->channel_positions != self->input_channel_positions) {
|
|
g_value_array_free (self->channel_positions);
|
|
self->channel_positions = NULL;
|
|
}
|
|
|
|
if (self->input_channel_positions) {
|
|
g_value_array_free (self->input_channel_positions);
|
|
self->input_channel_positions = NULL;
|
|
}
|
|
|
|
gst_caps_replace (&self->sinkcaps, NULL);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_check_channel_positions (GValueArray * positions)
|
|
{
|
|
gint i;
|
|
guint channels;
|
|
GstAudioChannelPosition *pos;
|
|
gboolean ret;
|
|
|
|
channels = positions->n_values;
|
|
pos = g_new (GstAudioChannelPosition, positions->n_values);
|
|
|
|
for (i = 0; i < channels; i++) {
|
|
GValue *v = g_value_array_get_nth (positions, i);
|
|
|
|
pos[i] = g_value_get_enum (v);
|
|
}
|
|
|
|
ret = gst_audio_check_channel_positions (pos, channels);
|
|
g_free (pos);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_interleave_set_channel_positions (GstInterleave * self, GstStructure * s)
|
|
{
|
|
GValue pos_array = { 0, };
|
|
gint i;
|
|
|
|
g_value_init (&pos_array, GST_TYPE_ARRAY);
|
|
|
|
if (self->channel_positions
|
|
&& self->channels == self->channel_positions->n_values
|
|
&& gst_interleave_check_channel_positions (self->channel_positions)) {
|
|
GST_DEBUG_OBJECT (self, "Using provided channel positions");
|
|
for (i = 0; i < self->channels; i++)
|
|
gst_value_array_append_value (&pos_array,
|
|
g_value_array_get_nth (self->channel_positions, i));
|
|
} else {
|
|
GValue pos_none = { 0, };
|
|
|
|
GST_WARNING_OBJECT (self, "Using NONE channel positions");
|
|
|
|
g_value_init (&pos_none, GST_TYPE_AUDIO_CHANNEL_POSITION);
|
|
g_value_set_enum (&pos_none, GST_AUDIO_CHANNEL_POSITION_NONE);
|
|
|
|
for (i = 0; i < self->channels; i++)
|
|
gst_value_array_append_value (&pos_array, &pos_none);
|
|
|
|
g_value_unset (&pos_none);
|
|
}
|
|
gst_structure_set_value (s, "channel-positions", &pos_array);
|
|
g_value_unset (&pos_array);
|
|
}
|
|
|
|
static void
|
|
gst_interleave_base_init (gpointer g_class)
|
|
{
|
|
gst_element_class_set_details_simple (g_class, "Audio interleaver",
|
|
"Filter/Converter/Audio",
|
|
"Folds many mono channels into one interleaved audio stream",
|
|
"Andy Wingo <wingo at pobox.com>, "
|
|
"Sebastian Dröge <slomo@circular-chaos.org>");
|
|
|
|
gst_element_class_add_pad_template (g_class,
|
|
gst_static_pad_template_get (&sink_template));
|
|
gst_element_class_add_pad_template (g_class,
|
|
gst_static_pad_template_get (&src_template));
|
|
}
|
|
|
|
static void
|
|
gst_interleave_class_init (GstInterleaveClass * klass)
|
|
{
|
|
GstElementClass *gstelement_class;
|
|
GObjectClass *gobject_class;
|
|
|
|
gobject_class = G_OBJECT_CLASS (klass);
|
|
gstelement_class = GST_ELEMENT_CLASS (klass);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_interleave_debug, "interleave", 0,
|
|
"interleave element");
|
|
|
|
/* Reference GstInterleavePad class to have the type registered from
|
|
* a threadsafe context
|
|
*/
|
|
g_type_class_ref (GST_TYPE_INTERLEAVE_PAD);
|
|
|
|
gobject_class->finalize = gst_interleave_finalize;
|
|
gobject_class->set_property = gst_interleave_set_property;
|
|
gobject_class->get_property = gst_interleave_get_property;
|
|
|
|
/**
|
|
* GstInterleave:channel-positions
|
|
*
|
|
* Channel positions: This property controls the channel positions
|
|
* that are used on the src caps. The number of elements should be
|
|
* the same as the number of sink pads and the array should contain
|
|
* a valid list of channel positions. The n-th element of the array
|
|
* is the position of the n-th sink pad.
|
|
*
|
|
* These channel positions will only be used if they're valid and the
|
|
* number of elements is the same as the number of channels. If this
|
|
* is not given a NONE layout will be used.
|
|
*
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_CHANNEL_POSITIONS,
|
|
g_param_spec_value_array ("channel-positions", "Channel positions",
|
|
"Channel positions used on the output",
|
|
g_param_spec_enum ("channel-position", "Channel position",
|
|
"Channel position of the n-th input",
|
|
GST_TYPE_AUDIO_CHANNEL_POSITION,
|
|
GST_AUDIO_CHANNEL_POSITION_NONE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstInterleave:channel-positions-from-input
|
|
*
|
|
* Channel positions from input: If this property is set to %TRUE the channel
|
|
* positions will be taken from the input caps if valid channel positions for
|
|
* the output can be constructed from them. If this is set to %TRUE setting the
|
|
* channel-positions property overwrites this property again.
|
|
*
|
|
*/
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_CHANNEL_POSITIONS_FROM_INPUT,
|
|
g_param_spec_boolean ("channel-positions-from-input",
|
|
"Channel positions from input",
|
|
"Take channel positions from the input", TRUE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
gstelement_class->request_new_pad =
|
|
GST_DEBUG_FUNCPTR (gst_interleave_request_new_pad);
|
|
gstelement_class->release_pad =
|
|
GST_DEBUG_FUNCPTR (gst_interleave_release_pad);
|
|
gstelement_class->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_interleave_change_state);
|
|
}
|
|
|
|
static void
|
|
gst_interleave_init (GstInterleave * self, GstInterleaveClass * klass)
|
|
{
|
|
self->src = gst_pad_new_from_static_template (&src_template, "src");
|
|
|
|
gst_pad_set_query_function (self->src,
|
|
GST_DEBUG_FUNCPTR (gst_interleave_src_query));
|
|
gst_pad_set_event_function (self->src,
|
|
GST_DEBUG_FUNCPTR (gst_interleave_src_event));
|
|
|
|
gst_element_add_pad (GST_ELEMENT (self), self->src);
|
|
|
|
self->collect = gst_collect_pads_new ();
|
|
gst_collect_pads_set_function (self->collect,
|
|
(GstCollectPadsFunction) gst_interleave_collected, self);
|
|
|
|
self->input_channel_positions = g_value_array_new (0);
|
|
self->channel_positions_from_input = TRUE;
|
|
self->channel_positions = self->input_channel_positions;
|
|
}
|
|
|
|
static void
|
|
gst_interleave_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_CHANNEL_POSITIONS:
|
|
if (self->channel_positions &&
|
|
self->channel_positions != self->input_channel_positions)
|
|
g_value_array_free (self->channel_positions);
|
|
|
|
self->channel_positions = g_value_dup_boxed (value);
|
|
self->channel_positions_from_input = FALSE;
|
|
break;
|
|
case PROP_CHANNEL_POSITIONS_FROM_INPUT:
|
|
self->channel_positions_from_input = g_value_get_boolean (value);
|
|
|
|
if (self->channel_positions_from_input) {
|
|
if (self->channel_positions &&
|
|
self->channel_positions != self->input_channel_positions)
|
|
g_value_array_free (self->channel_positions);
|
|
self->channel_positions = self->input_channel_positions;
|
|
}
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_interleave_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_CHANNEL_POSITIONS:
|
|
g_value_set_boxed (value, self->channel_positions);
|
|
break;
|
|
case PROP_CHANNEL_POSITIONS_FROM_INPUT:
|
|
g_value_set_boolean (value, self->channel_positions_from_input);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstPad *
|
|
gst_interleave_request_new_pad (GstElement * element, GstPadTemplate * templ,
|
|
const gchar * req_name)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (element);
|
|
GstPad *new_pad;
|
|
gchar *pad_name;
|
|
gint channels, padnumber;
|
|
GValue val = { 0, };
|
|
|
|
if (templ->direction != GST_PAD_SINK)
|
|
goto not_sink_pad;
|
|
|
|
channels = g_atomic_int_exchange_and_add (&self->channels, 1);
|
|
padnumber = g_atomic_int_exchange_and_add (&self->padcounter, 1);
|
|
|
|
pad_name = g_strdup_printf ("sink%d", padnumber);
|
|
new_pad = GST_PAD_CAST (g_object_new (GST_TYPE_INTERLEAVE_PAD,
|
|
"name", pad_name, "direction", templ->direction,
|
|
"template", templ, NULL));
|
|
GST_INTERLEAVE_PAD_CAST (new_pad)->channel = channels;
|
|
GST_DEBUG_OBJECT (self, "requested new pad %s", pad_name);
|
|
g_free (pad_name);
|
|
|
|
gst_pad_set_setcaps_function (new_pad,
|
|
GST_DEBUG_FUNCPTR (gst_interleave_sink_setcaps));
|
|
gst_pad_set_getcaps_function (new_pad,
|
|
GST_DEBUG_FUNCPTR (gst_interleave_sink_getcaps));
|
|
|
|
gst_collect_pads_add_pad (self->collect, new_pad, sizeof (GstCollectData));
|
|
|
|
/* FIXME: hacked way to override/extend the event function of
|
|
* GstCollectPads; because it sets its own event function giving the
|
|
* element no access to events */
|
|
self->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (new_pad);
|
|
gst_pad_set_event_function (new_pad,
|
|
GST_DEBUG_FUNCPTR (gst_interleave_sink_event));
|
|
|
|
if (!gst_element_add_pad (element, new_pad))
|
|
goto could_not_add;
|
|
|
|
g_value_init (&val, GST_TYPE_AUDIO_CHANNEL_POSITION);
|
|
g_value_set_enum (&val, GST_AUDIO_CHANNEL_POSITION_NONE);
|
|
self->input_channel_positions =
|
|
g_value_array_append (self->input_channel_positions, &val);
|
|
g_value_unset (&val);
|
|
|
|
/* Update the src caps if we already have them */
|
|
if (self->sinkcaps) {
|
|
GstCaps *srccaps;
|
|
GstStructure *s;
|
|
|
|
/* Take lock to make sure processing finishes first */
|
|
GST_OBJECT_LOCK (self->collect);
|
|
|
|
srccaps = gst_caps_copy (self->sinkcaps);
|
|
s = gst_caps_get_structure (srccaps, 0);
|
|
|
|
gst_structure_set (s, "channels", G_TYPE_INT, self->channels, NULL);
|
|
gst_interleave_set_channel_positions (self, s);
|
|
|
|
gst_pad_set_caps (self->src, srccaps);
|
|
gst_caps_unref (srccaps);
|
|
|
|
GST_OBJECT_UNLOCK (self->collect);
|
|
}
|
|
|
|
return new_pad;
|
|
|
|
/* errors */
|
|
not_sink_pad:
|
|
{
|
|
g_warning ("interleave: requested new pad that is not a SINK pad\n");
|
|
return NULL;
|
|
}
|
|
could_not_add:
|
|
{
|
|
GST_DEBUG_OBJECT (self, "could not add pad %s", GST_PAD_NAME (new_pad));
|
|
gst_collect_pads_remove_pad (self->collect, new_pad);
|
|
gst_object_unref (new_pad);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_interleave_release_pad (GstElement * element, GstPad * pad)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (element);
|
|
GList *l;
|
|
|
|
g_return_if_fail (GST_IS_INTERLEAVE_PAD (pad));
|
|
|
|
/* Take lock to make sure we're not changing this when processing buffers */
|
|
GST_OBJECT_LOCK (self->collect);
|
|
|
|
g_atomic_int_add (&self->channels, -1);
|
|
|
|
g_value_array_remove (self->input_channel_positions,
|
|
GST_INTERLEAVE_PAD_CAST (pad)->channel);
|
|
|
|
/* Update channel numbers */
|
|
GST_OBJECT_LOCK (self);
|
|
for (l = GST_ELEMENT_CAST (self)->sinkpads; l != NULL; l = l->next) {
|
|
GstInterleavePad *ipad = GST_INTERLEAVE_PAD (l->data);
|
|
|
|
if (GST_INTERLEAVE_PAD_CAST (pad)->channel < ipad->channel)
|
|
ipad->channel--;
|
|
}
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
/* Update the src caps if we already have them */
|
|
if (self->sinkcaps) {
|
|
if (self->channels > 0) {
|
|
GstCaps *srccaps;
|
|
GstStructure *s;
|
|
|
|
srccaps = gst_caps_copy (self->sinkcaps);
|
|
s = gst_caps_get_structure (srccaps, 0);
|
|
|
|
gst_structure_set (s, "channels", G_TYPE_INT, self->channels, NULL);
|
|
gst_interleave_set_channel_positions (self, s);
|
|
|
|
gst_pad_set_caps (self->src, srccaps);
|
|
gst_caps_unref (srccaps);
|
|
} else {
|
|
gst_caps_replace (&self->sinkcaps, NULL);
|
|
gst_pad_set_caps (self->src, NULL);
|
|
}
|
|
}
|
|
|
|
GST_OBJECT_UNLOCK (self->collect);
|
|
|
|
gst_collect_pads_remove_pad (self->collect, pad);
|
|
gst_element_remove_pad (element, pad);
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_interleave_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstInterleave *self;
|
|
GstStateChangeReturn ret;
|
|
|
|
self = GST_INTERLEAVE (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
self->timestamp = 0;
|
|
self->offset = 0;
|
|
self->segment_pending = TRUE;
|
|
self->segment_position = 0;
|
|
self->segment_rate = 1.0;
|
|
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
|
|
gst_collect_pads_start (self->collect);
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Stop before calling the parent's state change function as
|
|
* GstCollectPads might take locks and we would deadlock in that
|
|
* case
|
|
*/
|
|
if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
|
|
gst_collect_pads_stop (self->collect);
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_pad_set_caps (self->src, NULL);
|
|
gst_caps_replace (&self->sinkcaps, NULL);
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
__remove_channels (GstCaps * caps)
|
|
{
|
|
GstStructure *s;
|
|
gint i, size;
|
|
|
|
size = gst_caps_get_size (caps);
|
|
for (i = 0; i < size; i++) {
|
|
s = gst_caps_get_structure (caps, i);
|
|
gst_structure_remove_field (s, "channel-positions");
|
|
gst_structure_remove_field (s, "channels");
|
|
}
|
|
}
|
|
|
|
static void
|
|
__set_channels (GstCaps * caps, gint channels)
|
|
{
|
|
GstStructure *s;
|
|
gint i, size;
|
|
|
|
size = gst_caps_get_size (caps);
|
|
for (i = 0; i < size; i++) {
|
|
s = gst_caps_get_structure (caps, i);
|
|
if (channels > 0)
|
|
gst_structure_set (s, "channels", G_TYPE_INT, channels, NULL);
|
|
else
|
|
gst_structure_set (s, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
|
|
}
|
|
}
|
|
|
|
/* we can only accept caps that we and downstream can handle. */
|
|
static GstCaps *
|
|
gst_interleave_sink_getcaps (GstPad * pad)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
GstCaps *result, *peercaps, *sinkcaps;
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
|
|
/* If we already have caps on one of the sink pads return them */
|
|
if (self->sinkcaps) {
|
|
result = gst_caps_copy (self->sinkcaps);
|
|
} else {
|
|
/* get the downstream possible caps */
|
|
peercaps = gst_pad_peer_get_caps (self->src);
|
|
/* get the allowed caps on this sinkpad */
|
|
sinkcaps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
|
|
__remove_channels (sinkcaps);
|
|
if (peercaps) {
|
|
__remove_channels (peercaps);
|
|
/* if the peer has caps, intersect */
|
|
GST_DEBUG_OBJECT (pad, "intersecting peer and template caps");
|
|
result = gst_caps_intersect (peercaps, sinkcaps);
|
|
gst_caps_unref (peercaps);
|
|
gst_caps_unref (sinkcaps);
|
|
} else {
|
|
/* the peer has no caps (or there is no peer), just use the allowed caps
|
|
* of this sinkpad. */
|
|
GST_DEBUG_OBJECT (pad, "no peer caps, using sinkcaps");
|
|
result = sinkcaps;
|
|
}
|
|
__set_channels (result, 1);
|
|
}
|
|
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
gst_object_unref (self);
|
|
|
|
GST_DEBUG_OBJECT (pad, "Returning caps %" GST_PTR_FORMAT, result);
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
gst_interleave_set_process_function (GstInterleave * self)
|
|
{
|
|
switch (self->width) {
|
|
case 8:
|
|
self->func = (GstInterleaveFunc) interleave_8;
|
|
break;
|
|
case 16:
|
|
self->func = (GstInterleaveFunc) interleave_16;
|
|
break;
|
|
case 24:
|
|
self->func = (GstInterleaveFunc) interleave_24;
|
|
break;
|
|
case 32:
|
|
self->func = (GstInterleaveFunc) interleave_32;
|
|
break;
|
|
case 64:
|
|
self->func = (GstInterleaveFunc) interleave_64;
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_sink_setcaps (GstPad * pad, GstCaps * caps)
|
|
{
|
|
GstInterleave *self;
|
|
|
|
g_return_val_if_fail (GST_IS_INTERLEAVE_PAD (pad), FALSE);
|
|
|
|
self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
|
|
/* First caps that are set on a sink pad are used as output caps */
|
|
/* TODO: handle caps changes */
|
|
if (self->sinkcaps && !gst_caps_is_subset (caps, self->sinkcaps)) {
|
|
goto cannot_change_caps;
|
|
} else {
|
|
GstCaps *srccaps;
|
|
GstStructure *s;
|
|
gboolean res;
|
|
|
|
s = gst_caps_get_structure (caps, 0);
|
|
|
|
if (!gst_structure_get_int (s, "width", &self->width))
|
|
goto no_width;
|
|
|
|
if (!gst_structure_get_int (s, "rate", &self->rate))
|
|
goto no_rate;
|
|
|
|
gst_interleave_set_process_function (self);
|
|
|
|
if (gst_structure_has_field (s, "channel-positions")) {
|
|
const GValue *pos_array;
|
|
|
|
pos_array = gst_structure_get_value (s, "channel-positions");
|
|
if (GST_VALUE_HOLDS_ARRAY (pos_array)
|
|
&& gst_value_array_get_size (pos_array) == 1) {
|
|
const GValue *pos = gst_value_array_get_value (pos_array, 0);
|
|
|
|
GValue *apos = g_value_array_get_nth (self->input_channel_positions,
|
|
GST_INTERLEAVE_PAD_CAST (pad)->channel);
|
|
|
|
g_value_set_enum (apos, g_value_get_enum (pos));
|
|
}
|
|
}
|
|
|
|
srccaps = gst_caps_copy (caps);
|
|
s = gst_caps_get_structure (srccaps, 0);
|
|
|
|
gst_structure_set (s, "channels", G_TYPE_INT, self->channels, NULL);
|
|
gst_interleave_set_channel_positions (self, s);
|
|
|
|
res = gst_pad_set_caps (self->src, srccaps);
|
|
gst_caps_unref (srccaps);
|
|
|
|
if (!res)
|
|
goto src_did_not_accept;
|
|
}
|
|
|
|
if (!self->sinkcaps) {
|
|
GstCaps *sinkcaps = gst_caps_copy (caps);
|
|
GstStructure *s = gst_caps_get_structure (sinkcaps, 0);
|
|
|
|
gst_structure_remove_field (s, "channel-positions");
|
|
|
|
gst_caps_replace (&self->sinkcaps, sinkcaps);
|
|
|
|
gst_caps_unref (sinkcaps);
|
|
}
|
|
|
|
gst_object_unref (self);
|
|
|
|
return TRUE;
|
|
|
|
cannot_change_caps:
|
|
{
|
|
GST_WARNING_OBJECT (self, "caps of %" GST_PTR_FORMAT " already set, can't "
|
|
"change", self->sinkcaps);
|
|
gst_object_unref (self);
|
|
return FALSE;
|
|
}
|
|
src_did_not_accept:
|
|
{
|
|
GST_WARNING_OBJECT (self, "src did not accept setcaps()");
|
|
gst_object_unref (self);
|
|
return FALSE;
|
|
}
|
|
no_width:
|
|
{
|
|
GST_WARNING_OBJECT (self, "caps did not have width: %" GST_PTR_FORMAT,
|
|
caps);
|
|
gst_object_unref (self);
|
|
return FALSE;
|
|
}
|
|
no_rate:
|
|
{
|
|
GST_WARNING_OBJECT (self, "caps did not have rate: %" GST_PTR_FORMAT, caps);
|
|
gst_object_unref (self);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_sink_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
gboolean ret;
|
|
|
|
GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_FLUSH_STOP:
|
|
/* mark a pending new segment. This event is synchronized
|
|
* with the streaming thread so we can safely update the
|
|
* variable without races. It's somewhat weird because we
|
|
* assume the collectpads forwarded the FLUSH_STOP past us
|
|
* and downstream (using our source pad, the bastard!).
|
|
*/
|
|
self->segment_pending = TRUE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* now GstCollectPads can take care of the rest, e.g. EOS */
|
|
ret = self->collect_event (pad, event);
|
|
|
|
gst_object_unref (self);
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_src_query_duration (GstInterleave * self, GstQuery * query)
|
|
{
|
|
gint64 max;
|
|
gboolean res;
|
|
GstFormat format;
|
|
GstIterator *it;
|
|
gboolean done;
|
|
|
|
/* parse format */
|
|
gst_query_parse_duration (query, &format, NULL);
|
|
|
|
max = -1;
|
|
res = TRUE;
|
|
done = FALSE;
|
|
|
|
/* Take maximum of all durations */
|
|
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
|
|
while (!done) {
|
|
GstIteratorResult ires;
|
|
|
|
gpointer item;
|
|
|
|
ires = gst_iterator_next (it, &item);
|
|
switch (ires) {
|
|
case GST_ITERATOR_DONE:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
{
|
|
GstPad *pad = GST_PAD_CAST (item);
|
|
|
|
gint64 duration;
|
|
|
|
/* ask sink peer for duration */
|
|
res &= gst_pad_query_peer_duration (pad, &format, &duration);
|
|
/* take max from all valid return values */
|
|
if (res) {
|
|
/* valid unknown length, stop searching */
|
|
if (duration == -1) {
|
|
max = duration;
|
|
done = TRUE;
|
|
}
|
|
/* else see if bigger than current max */
|
|
else if (duration > max)
|
|
max = duration;
|
|
}
|
|
gst_object_unref (pad);
|
|
break;
|
|
}
|
|
case GST_ITERATOR_RESYNC:
|
|
max = -1;
|
|
res = TRUE;
|
|
gst_iterator_resync (it);
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
done = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
gst_iterator_free (it);
|
|
|
|
if (res) {
|
|
/* If in bytes format we have to multiply with the number of channels
|
|
* to get the correct results. All other formats should be fine */
|
|
if (format == GST_FORMAT_BYTES && max != -1)
|
|
max *= self->channels;
|
|
|
|
/* and store the max */
|
|
GST_DEBUG_OBJECT (self, "Total duration in format %s: %"
|
|
GST_TIME_FORMAT, gst_format_get_name (format), GST_TIME_ARGS (max));
|
|
gst_query_set_duration (query, format, max);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_src_query_latency (GstInterleave * self, GstQuery * query)
|
|
{
|
|
GstClockTime min, max;
|
|
gboolean live;
|
|
gboolean res;
|
|
GstIterator *it;
|
|
gboolean done;
|
|
|
|
res = TRUE;
|
|
done = FALSE;
|
|
|
|
live = FALSE;
|
|
min = 0;
|
|
max = GST_CLOCK_TIME_NONE;
|
|
|
|
/* Take maximum of all latency values */
|
|
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
|
|
while (!done) {
|
|
GstIteratorResult ires;
|
|
gpointer item;
|
|
|
|
ires = gst_iterator_next (it, &item);
|
|
switch (ires) {
|
|
case GST_ITERATOR_DONE:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
{
|
|
GstPad *pad = GST_PAD_CAST (item);
|
|
GstQuery *peerquery;
|
|
GstClockTime min_cur, max_cur;
|
|
gboolean live_cur;
|
|
|
|
peerquery = gst_query_new_latency ();
|
|
|
|
/* Ask peer for latency */
|
|
res &= gst_pad_peer_query (pad, peerquery);
|
|
|
|
/* take max from all valid return values */
|
|
if (res) {
|
|
gst_query_parse_latency (peerquery, &live_cur, &min_cur, &max_cur);
|
|
|
|
if (min_cur > min)
|
|
min = min_cur;
|
|
|
|
if (max_cur != GST_CLOCK_TIME_NONE &&
|
|
((max != GST_CLOCK_TIME_NONE && max_cur > max) ||
|
|
(max == GST_CLOCK_TIME_NONE)))
|
|
max = max_cur;
|
|
|
|
live = live || live_cur;
|
|
}
|
|
|
|
gst_query_unref (peerquery);
|
|
gst_object_unref (pad);
|
|
break;
|
|
}
|
|
case GST_ITERATOR_RESYNC:
|
|
live = FALSE;
|
|
min = 0;
|
|
max = GST_CLOCK_TIME_NONE;
|
|
res = TRUE;
|
|
gst_iterator_resync (it);
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
done = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
gst_iterator_free (it);
|
|
|
|
if (res) {
|
|
/* store the results */
|
|
GST_DEBUG_OBJECT (self, "Calculated total latency: live %s, min %"
|
|
GST_TIME_FORMAT ", max %" GST_TIME_FORMAT,
|
|
(live ? "yes" : "no"), GST_TIME_ARGS (min), GST_TIME_ARGS (max));
|
|
gst_query_set_latency (query, live, min, max);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_src_query (GstPad * pad, GstQuery * query)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
gboolean res = FALSE;
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_POSITION:
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_position (query, &format, NULL);
|
|
|
|
switch (format) {
|
|
case GST_FORMAT_TIME:
|
|
/* FIXME, bring to stream time, might be tricky */
|
|
gst_query_set_position (query, format, self->timestamp);
|
|
res = TRUE;
|
|
break;
|
|
case GST_FORMAT_BYTES:
|
|
gst_query_set_position (query, format,
|
|
self->offset * self->channels * self->width);
|
|
res = TRUE;
|
|
break;
|
|
case GST_FORMAT_DEFAULT:
|
|
gst_query_set_position (query, format, self->offset);
|
|
res = TRUE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case GST_QUERY_DURATION:
|
|
res = gst_interleave_src_query_duration (self, query);
|
|
break;
|
|
case GST_QUERY_LATENCY:
|
|
res = gst_interleave_src_query_latency (self, query);
|
|
break;
|
|
default:
|
|
/* FIXME, needs a custom query handler because we have multiple
|
|
* sinkpads */
|
|
res = gst_pad_query_default (pad, query);
|
|
break;
|
|
}
|
|
|
|
gst_object_unref (self);
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
forward_event_func (GstPad * pad, GValue * ret, GstEvent * event)
|
|
{
|
|
gst_event_ref (event);
|
|
GST_LOG_OBJECT (pad, "About to send event %s", GST_EVENT_TYPE_NAME (event));
|
|
if (!gst_pad_push_event (pad, event)) {
|
|
g_value_set_boolean (ret, FALSE);
|
|
GST_WARNING_OBJECT (pad, "Sending event %p (%s) failed.",
|
|
event, GST_EVENT_TYPE_NAME (event));
|
|
} else {
|
|
GST_LOG_OBJECT (pad, "Sent event %p (%s).",
|
|
event, GST_EVENT_TYPE_NAME (event));
|
|
}
|
|
gst_object_unref (pad);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
forward_event (GstInterleave * self, GstEvent * event)
|
|
{
|
|
GstIterator *it;
|
|
GValue vret = { 0 };
|
|
|
|
GST_LOG_OBJECT (self, "Forwarding event %p (%s)", event,
|
|
GST_EVENT_TYPE_NAME (event));
|
|
|
|
g_value_init (&vret, G_TYPE_BOOLEAN);
|
|
g_value_set_boolean (&vret, TRUE);
|
|
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
|
|
gst_iterator_fold (it, (GstIteratorFoldFunction) forward_event_func, &vret,
|
|
event);
|
|
gst_iterator_free (it);
|
|
gst_event_unref (event);
|
|
|
|
return g_value_get_boolean (&vret);
|
|
}
|
|
|
|
|
|
static gboolean
|
|
gst_interleave_src_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
gboolean result;
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_QOS:
|
|
/* QoS might be tricky */
|
|
result = FALSE;
|
|
break;
|
|
case GST_EVENT_SEEK:
|
|
{
|
|
GstSeekFlags flags;
|
|
GstSeekType curtype;
|
|
gint64 cur;
|
|
|
|
/* parse the seek parameters */
|
|
gst_event_parse_seek (event, &self->segment_rate, NULL, &flags, &curtype,
|
|
&cur, NULL, NULL);
|
|
|
|
/* check if we are flushing */
|
|
if (flags & GST_SEEK_FLAG_FLUSH) {
|
|
/* make sure we accept nothing anymore and return WRONG_STATE */
|
|
gst_collect_pads_set_flushing (self->collect, TRUE);
|
|
|
|
/* flushing seek, start flush downstream, the flush will be done
|
|
* when all pads received a FLUSH_STOP. */
|
|
gst_pad_push_event (self->src, gst_event_new_flush_start ());
|
|
}
|
|
|
|
/* now wait for the collected to be finished and mark a new
|
|
* segment */
|
|
GST_OBJECT_LOCK (self->collect);
|
|
if (curtype == GST_SEEK_TYPE_SET)
|
|
self->segment_position = cur;
|
|
else
|
|
self->segment_position = 0;
|
|
self->segment_pending = TRUE;
|
|
GST_OBJECT_UNLOCK (self->collect);
|
|
|
|
result = forward_event (self, event);
|
|
break;
|
|
}
|
|
case GST_EVENT_NAVIGATION:
|
|
/* navigation is rather pointless. */
|
|
result = FALSE;
|
|
break;
|
|
default:
|
|
/* just forward the rest for now */
|
|
result = forward_event (self, event);
|
|
break;
|
|
}
|
|
gst_object_unref (self);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_interleave_collected (GstCollectPads * pads, GstInterleave * self)
|
|
{
|
|
guint size;
|
|
GstBuffer *outbuf;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GSList *collected;
|
|
guint nsamples;
|
|
guint ncollected = 0;
|
|
gboolean empty = TRUE;
|
|
gint width = self->width / 8;
|
|
|
|
g_return_val_if_fail (self->func != NULL, GST_FLOW_NOT_NEGOTIATED);
|
|
g_return_val_if_fail (self->width > 0, GST_FLOW_NOT_NEGOTIATED);
|
|
g_return_val_if_fail (self->channels > 0, GST_FLOW_NOT_NEGOTIATED);
|
|
g_return_val_if_fail (self->rate > 0, GST_FLOW_NOT_NEGOTIATED);
|
|
|
|
size = gst_collect_pads_available (pads);
|
|
|
|
g_return_val_if_fail (size % width == 0, GST_FLOW_ERROR);
|
|
|
|
GST_DEBUG_OBJECT (self, "Starting to collect %u bytes from %d channels", size,
|
|
self->channels);
|
|
|
|
nsamples = size / width;
|
|
|
|
ret =
|
|
gst_pad_alloc_buffer (self->src, GST_BUFFER_OFFSET_NONE,
|
|
size * self->channels, GST_PAD_CAPS (self->src), &outbuf);
|
|
|
|
if (ret != GST_FLOW_OK) {
|
|
return ret;
|
|
} else if (outbuf == NULL || GST_BUFFER_SIZE (outbuf) < size * self->channels) {
|
|
gst_buffer_unref (outbuf);
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
} else if (!gst_caps_is_equal (GST_BUFFER_CAPS (outbuf),
|
|
GST_PAD_CAPS (self->src))) {
|
|
gst_buffer_unref (outbuf);
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
|
|
memset (GST_BUFFER_DATA (outbuf), 0, size * self->channels);
|
|
|
|
for (collected = pads->data; collected != NULL; collected = collected->next) {
|
|
GstCollectData *cdata;
|
|
GstBuffer *inbuf;
|
|
guint8 *outdata;
|
|
|
|
cdata = (GstCollectData *) collected->data;
|
|
|
|
inbuf = gst_collect_pads_take_buffer (pads, cdata, size);
|
|
if (inbuf == NULL) {
|
|
GST_DEBUG_OBJECT (cdata->pad, "No buffer available");
|
|
goto next;
|
|
}
|
|
ncollected++;
|
|
|
|
if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP))
|
|
goto next;
|
|
|
|
empty = FALSE;
|
|
outdata =
|
|
GST_BUFFER_DATA (outbuf) +
|
|
width * GST_INTERLEAVE_PAD_CAST (cdata->pad)->channel;
|
|
|
|
self->func (outdata, GST_BUFFER_DATA (inbuf), self->channels, nsamples);
|
|
|
|
next:
|
|
if (inbuf)
|
|
gst_buffer_unref (inbuf);
|
|
}
|
|
|
|
if (ncollected == 0)
|
|
goto eos;
|
|
|
|
if (self->segment_pending) {
|
|
GstEvent *event;
|
|
|
|
event = gst_event_new_new_segment_full (FALSE, self->segment_rate,
|
|
1.0, GST_FORMAT_TIME, self->timestamp, -1, self->segment_position);
|
|
|
|
gst_pad_push_event (self->src, event);
|
|
self->segment_pending = FALSE;
|
|
self->segment_position = 0;
|
|
}
|
|
|
|
GST_BUFFER_TIMESTAMP (outbuf) = self->timestamp;
|
|
GST_BUFFER_OFFSET (outbuf) = self->offset;
|
|
|
|
self->offset += nsamples;
|
|
self->timestamp = gst_util_uint64_scale_int (self->offset,
|
|
GST_SECOND, self->rate);
|
|
|
|
GST_BUFFER_DURATION (outbuf) = self->timestamp -
|
|
GST_BUFFER_TIMESTAMP (outbuf);
|
|
|
|
if (empty)
|
|
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
|
|
|
|
GST_LOG_OBJECT (self, "pushing outbuf, timestamp %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
|
|
ret = gst_pad_push (self->src, outbuf);
|
|
|
|
return ret;
|
|
|
|
eos:
|
|
{
|
|
GST_DEBUG_OBJECT (self, "no data available, must be EOS");
|
|
gst_buffer_unref (outbuf);
|
|
gst_pad_push_event (self->src, gst_event_new_eos ());
|
|
return GST_FLOW_UNEXPECTED;
|
|
}
|
|
}
|