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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1341 lines
39 KiB
C
1341 lines
39 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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* 2005 Wim Taymans <wim@fluendo.com>
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* 2007 Andy Wingo <wingo at pobox.com>
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* 2008 Sebastian Dröge <slomo@circular-chaos.rg>
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*
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* interleave.c: interleave samples, mostly based on adder.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/* TODO:
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* - handle caps changes
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* - handle more queries/events
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*/
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/**
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* SECTION:element-interleave
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* @title: interleave
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* @see_also: deinterleave
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*
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* Merges separate mono inputs into one interleaved stream.
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*
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* This element handles all raw floating point sample formats and all signed integer sample formats. The first
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* caps on one of the sinkpads will set the caps of the output so usually an audioconvert element should be
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* placed before every sinkpad of interleave.
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*
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* It's possible to change the number of channels while the pipeline is running by adding or removing
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* some of the request pads but this will change the caps of the output buffers. Changing the input
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* caps is _not_ supported yet.
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*
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* The channel number of every sinkpad in the out can be retrieved from the "channel" property of the pad.
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*
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* ## Example launch line
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* |[
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* gst-launch-1.0 filesrc location=file.mp3 ! decodebin ! audioconvert ! "audio/x-raw,channels=2" ! deinterleave name=d interleave name=i ! audioconvert ! wavenc ! filesink location=test.wav d.src_0 ! queue ! audioconvert ! i.sink_1 d.src_1 ! queue ! audioconvert ! i.sink_0
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* ]| Decodes and deinterleaves a Stereo MP3 file into separate channels and
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* then interleaves the channels again to a WAV file with the channels
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* exchanged.
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* |[
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* gst-launch-1.0 interleave name=i ! audioconvert ! wavenc ! filesink location=file.wav filesrc location=file1.wav ! decodebin ! audioconvert ! "audio/x-raw,channels=1,channel-mask=(bitmask)0x1" ! queue ! i.sink_0 filesrc location=file2.wav ! decodebin ! audioconvert ! "audio/x-raw,channels=1,channel-mask=(bitmask)0x2" ! queue ! i.sink_1
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* ]| Interleaves two Mono WAV files to a single Stereo WAV file. Having
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* channel-masks defined in the sink pads ensures a sane mapping of the mono
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* streams into the stereo stream. NOTE: the proper way to map channels in
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* code is by using the channel-positions property of the interleave element.
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*
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*/
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/* FIXME 0.11: suppress warnings for deprecated API such as GValueArray
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* with newer GLib versions (>= 2.31.0) */
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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gst/gst.h>
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#include <string.h>
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#include "gstinterleaveelements.h"
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#include "interleave.h"
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#include <gst/audio/audio.h>
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#include <gst/audio/audio-enumtypes.h>
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GST_DEBUG_CATEGORY_STATIC (gst_interleave_debug);
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#define GST_CAT_DEFAULT gst_interleave_debug
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink_%u",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS ("audio/x-raw, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) 1, "
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"format = (string) " GST_AUDIO_FORMATS_ALL ", "
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"layout = (string) {non-interleaved, interleaved}")
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);
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static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) [ 1, MAX ], "
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"format = (string) " GST_AUDIO_FORMATS_ALL ", "
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"layout = (string) interleaved")
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);
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#define MAKE_FUNC(type) \
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static void interleave_##type (guint##type *out, guint##type *in, \
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guint stride, guint nframes) \
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{ \
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gint i; \
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\
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for (i = 0; i < nframes; i++) { \
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*out = in[i]; \
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out += stride; \
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} \
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}
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MAKE_FUNC (8);
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MAKE_FUNC (16);
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MAKE_FUNC (32);
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MAKE_FUNC (64);
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static void
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interleave_24 (guint8 * out, guint8 * in, guint stride, guint nframes)
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{
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gint i;
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for (i = 0; i < nframes; i++) {
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memcpy (out, in, 3);
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out += stride * 3;
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in += 3;
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}
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}
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typedef struct
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{
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GstPad parent;
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guint channel;
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} GstInterleavePad;
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enum
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{
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PROP_PAD_0,
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PROP_PAD_CHANNEL
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};
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static void gst_interleave_pad_class_init (GstPadClass * klass);
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#define GST_TYPE_INTERLEAVE_PAD (gst_interleave_pad_get_type())
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#define GST_INTERLEAVE_PAD(pad) (G_TYPE_CHECK_INSTANCE_CAST((pad),GST_TYPE_INTERLEAVE_PAD,GstInterleavePad))
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#define GST_INTERLEAVE_PAD_CAST(pad) ((GstInterleavePad *) pad)
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#define GST_IS_INTERLEAVE_PAD(pad) (G_TYPE_CHECK_INSTANCE_TYPE((pad),GST_TYPE_INTERLEAVE_PAD))
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static GType
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gst_interleave_pad_get_type (void)
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{
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static GType type = 0;
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if (G_UNLIKELY (type == 0)) {
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type = g_type_register_static_simple (GST_TYPE_PAD,
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g_intern_static_string ("GstInterleavePad"), sizeof (GstPadClass),
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(GClassInitFunc) gst_interleave_pad_class_init,
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sizeof (GstInterleavePad), NULL, 0);
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}
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return type;
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}
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static void
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gst_interleave_pad_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec)
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{
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GstInterleavePad *self = GST_INTERLEAVE_PAD (object);
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switch (prop_id) {
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case PROP_PAD_CHANNEL:
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g_value_set_uint (value, self->channel);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_interleave_pad_class_init (GstPadClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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gobject_class->get_property = gst_interleave_pad_get_property;
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g_object_class_install_property (gobject_class,
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PROP_PAD_CHANNEL,
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g_param_spec_uint ("channel",
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"Channel number",
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"Number of the channel of this pad in the output", 0, G_MAXUINT, 0,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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}
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#define gst_interleave_parent_class parent_class
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G_DEFINE_TYPE (GstInterleave, gst_interleave, GST_TYPE_ELEMENT);
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GST_ELEMENT_REGISTER_DEFINE (interleave, "interleave",
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GST_RANK_NONE, gst_interleave_get_type ());
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enum
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{
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PROP_0,
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PROP_CHANNEL_POSITIONS,
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PROP_CHANNEL_POSITIONS_FROM_INPUT
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};
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static void gst_interleave_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_interleave_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static GstPad *gst_interleave_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name, const GstCaps * caps);
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static void gst_interleave_release_pad (GstElement * element, GstPad * pad);
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static GstStateChangeReturn gst_interleave_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_interleave_src_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static gboolean gst_interleave_src_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_interleave_sink_event (GstCollectPads * pads,
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GstCollectData * data, GstEvent * event, gpointer user_data);
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static gboolean gst_interleave_sink_query (GstCollectPads * pads,
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GstCollectData * data, GstQuery * query, gpointer user_data);
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static gboolean gst_interleave_sink_setcaps (GstInterleave * self,
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GstPad * pad, const GstCaps * caps, const GstAudioInfo * info);
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static GstCaps *gst_interleave_sink_getcaps (GstPad * pad, GstInterleave * self,
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GstCaps * filter);
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static GstFlowReturn gst_interleave_collected (GstCollectPads * pads,
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GstInterleave * self);
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static void
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gst_interleave_finalize (GObject * object)
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{
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GstInterleave *self = GST_INTERLEAVE (object);
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if (self->collect) {
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gst_object_unref (self->collect);
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self->collect = NULL;
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}
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if (self->channel_positions
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&& self->channel_positions != self->input_channel_positions) {
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g_value_array_free (self->channel_positions);
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self->channel_positions = NULL;
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}
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if (self->input_channel_positions) {
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g_value_array_free (self->input_channel_positions);
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self->input_channel_positions = NULL;
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}
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gst_caps_replace (&self->sinkcaps, NULL);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gint
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compare_positions (gconstpointer a, gconstpointer b, gpointer user_data)
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{
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const gint i = *(const gint *) a;
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const gint j = *(const gint *) b;
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const gint *pos = (const gint *) user_data;
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if (pos[i] < pos[j])
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return -1;
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else if (pos[i] > pos[j])
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return 1;
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else
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return 0;
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}
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static gboolean
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gst_interleave_channel_positions_to_mask (GValueArray * positions,
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gint default_ordering_map[64], guint64 * mask)
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{
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gint i;
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guint channels;
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GstAudioChannelPosition *pos;
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gboolean ret;
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channels = positions->n_values;
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pos = g_new (GstAudioChannelPosition, channels);
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for (i = 0; i < channels; i++) {
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GValue *val;
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val = g_value_array_get_nth (positions, i);
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pos[i] = g_value_get_enum (val);
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}
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/* sort the default ordering map according to the position order */
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for (i = 0; i < channels; i++) {
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default_ordering_map[i] = i;
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}
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g_qsort_with_data (default_ordering_map, channels,
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sizeof (*default_ordering_map), compare_positions, pos);
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ret = gst_audio_channel_positions_to_mask (pos, channels, FALSE, mask);
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g_free (pos);
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return ret;
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}
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static void
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gst_interleave_set_channel_positions (GstInterleave * self, GstStructure * s)
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{
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if (self->channels <= 64 &&
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self->channel_positions != NULL &&
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self->channels == self->channel_positions->n_values) {
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if (!gst_interleave_channel_positions_to_mask (self->channel_positions,
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self->default_channels_ordering_map, &self->channel_mask)) {
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GST_WARNING_OBJECT (self, "Invalid channel positions, using NONE");
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self->channel_mask = 0;
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}
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} else {
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self->channel_mask = 0;
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if (self->channels <= 64) {
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GST_WARNING_OBJECT (self, "Using NONE channel positions");
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}
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}
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gst_structure_set (s, "channel-mask", GST_TYPE_BITMASK, self->channel_mask,
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NULL);
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}
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static void
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gst_interleave_send_stream_start (GstInterleave * self)
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{
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GST_OBJECT_LOCK (self);
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if (self->send_stream_start) {
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gchar s_id[32];
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self->send_stream_start = FALSE;
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GST_OBJECT_UNLOCK (self);
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/* stream-start (FIXME: create id based on input ids) */
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g_snprintf (s_id, sizeof (s_id), "interleave-%08x", g_random_int ());
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gst_pad_push_event (self->src, gst_event_new_stream_start (s_id));
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} else {
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GST_OBJECT_UNLOCK (self);
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}
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}
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static void
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gst_interleave_class_init (GstInterleaveClass * klass)
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{
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GstElementClass *gstelement_class;
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GObjectClass *gobject_class;
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gobject_class = G_OBJECT_CLASS (klass);
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gstelement_class = GST_ELEMENT_CLASS (klass);
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GST_DEBUG_CATEGORY_INIT (gst_interleave_debug, "interleave", 0,
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"interleave element");
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gst_element_class_set_static_metadata (gstelement_class, "Audio interleaver",
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"Filter/Converter/Audio",
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"Folds many mono channels into one interleaved audio stream",
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"Andy Wingo <wingo at pobox.com>, "
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"Sebastian Dröge <slomo@circular-chaos.org>");
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gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
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gst_element_class_add_static_pad_template (gstelement_class, &src_template);
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/* Reference GstInterleavePad class to have the type registered from
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* a threadsafe context
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*/
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g_type_class_ref (GST_TYPE_INTERLEAVE_PAD);
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gobject_class->finalize = gst_interleave_finalize;
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gobject_class->set_property = gst_interleave_set_property;
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gobject_class->get_property = gst_interleave_get_property;
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/**
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* GstInterleave:channel-positions
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*
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* Channel positions: This property controls the channel positions
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* that are used on the src caps. The number of elements should be
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* the same as the number of sink pads and the array should contain
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* a valid list of channel positions. The n-th element of the array
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* is the position of the n-th sink pad.
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*
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* These channel positions will only be used if they're valid and the
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* number of elements is the same as the number of channels. If this
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* is not given a NONE layout will be used.
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*
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*/
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g_object_class_install_property (gobject_class, PROP_CHANNEL_POSITIONS,
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g_param_spec_value_array ("channel-positions", "Channel positions",
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"Channel positions used on the output",
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g_param_spec_enum ("channel-position", "Channel position",
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"Channel position of the n-th input",
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GST_TYPE_AUDIO_CHANNEL_POSITION,
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GST_AUDIO_CHANNEL_POSITION_NONE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstInterleave:channel-positions-from-input
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*
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* Channel positions from input: If this property is set to %TRUE the channel
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* positions will be taken from the input caps if valid channel positions for
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* the output can be constructed from them. If this is set to %TRUE setting the
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* channel-positions property overwrites this property again.
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*
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*/
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g_object_class_install_property (gobject_class,
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PROP_CHANNEL_POSITIONS_FROM_INPUT,
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g_param_spec_boolean ("channel-positions-from-input",
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"Channel positions from input",
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"Take channel positions from the input", TRUE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gstelement_class->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_interleave_request_new_pad);
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gstelement_class->release_pad =
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GST_DEBUG_FUNCPTR (gst_interleave_release_pad);
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_interleave_change_state);
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}
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static void
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gst_interleave_init (GstInterleave * self)
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{
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self->src = gst_pad_new_from_static_template (&src_template, "src");
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gst_pad_set_query_function (self->src,
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GST_DEBUG_FUNCPTR (gst_interleave_src_query));
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gst_pad_set_event_function (self->src,
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GST_DEBUG_FUNCPTR (gst_interleave_src_event));
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gst_element_add_pad (GST_ELEMENT (self), self->src);
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self->collect = gst_collect_pads_new ();
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gst_collect_pads_set_function (self->collect,
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(GstCollectPadsFunction) gst_interleave_collected, self);
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self->input_channel_positions = g_value_array_new (0);
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self->channel_positions_from_input = TRUE;
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self->channel_positions = self->input_channel_positions;
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}
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static void
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gst_interleave_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstInterleave *self = GST_INTERLEAVE (object);
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switch (prop_id) {
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case PROP_CHANNEL_POSITIONS:
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if (self->channel_positions &&
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self->channel_positions != self->input_channel_positions)
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g_value_array_free (self->channel_positions);
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self->channel_positions = g_value_dup_boxed (value);
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self->channel_positions_from_input = FALSE;
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break;
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case PROP_CHANNEL_POSITIONS_FROM_INPUT:
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self->channel_positions_from_input = g_value_get_boolean (value);
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if (self->channel_positions_from_input) {
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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, const GstCaps * caps)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (element);
|
|
GstPad *new_pad;
|
|
gchar *pad_name;
|
|
gint channel, padnumber;
|
|
GValue val = { 0, };
|
|
|
|
if (templ->direction != GST_PAD_SINK)
|
|
goto not_sink_pad;
|
|
|
|
padnumber = g_atomic_int_add (&self->padcounter, 1);
|
|
|
|
channel = g_atomic_int_add (&self->channels, 1);
|
|
if (!self->channel_positions_from_input)
|
|
channel = padnumber;
|
|
|
|
pad_name = g_strdup_printf ("sink_%u", 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 = channel;
|
|
GST_DEBUG_OBJECT (self, "requested new pad %s", pad_name);
|
|
g_free (pad_name);
|
|
|
|
gst_pad_use_fixed_caps (new_pad);
|
|
|
|
gst_collect_pads_add_pad (self->collect, new_pad, sizeof (GstCollectData),
|
|
NULL, TRUE);
|
|
|
|
gst_collect_pads_set_event_function (self->collect,
|
|
(GstCollectPadsEventFunction)
|
|
GST_DEBUG_FUNCPTR (gst_interleave_sink_event), self);
|
|
|
|
gst_collect_pads_set_query_function (self->collect,
|
|
(GstCollectPadsQueryFunction)
|
|
GST_DEBUG_FUNCPTR (gst_interleave_sink_query), self);
|
|
|
|
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_interleave_send_stream_start (self);
|
|
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;
|
|
GstAudioChannelPosition position;
|
|
|
|
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);
|
|
|
|
if (gst_pad_has_current_caps (pad))
|
|
g_atomic_int_add (&self->configured_sinkpads_counter, -1);
|
|
|
|
position = GST_INTERLEAVE_PAD_CAST (pad)->channel;
|
|
g_value_array_remove (self->input_channel_positions, position);
|
|
|
|
/* 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_interleave_send_stream_start (self);
|
|
gst_pad_set_caps (self->src, srccaps);
|
|
gst_caps_unref (srccaps);
|
|
} else {
|
|
gst_caps_replace (&self->sinkcaps, 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;
|
|
gst_event_replace (&self->pending_segment, NULL);
|
|
self->send_stream_start = TRUE;
|
|
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_caps_replace (&self->sinkcaps, NULL);
|
|
gst_event_replace (&self->pending_segment, 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-mask");
|
|
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,
|
|
GstCaps * filter)
|
|
{
|
|
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_query_caps (self->src, NULL);
|
|
|
|
/* get the allowed caps on this sinkpad */
|
|
sinkcaps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
|
|
__remove_channels (sinkcaps);
|
|
if (peercaps) {
|
|
peercaps = gst_caps_make_writable (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);
|
|
|
|
if (filter != NULL) {
|
|
GstCaps *caps = result;
|
|
|
|
GST_LOG_OBJECT (pad, "intersecting filter caps %" GST_PTR_FORMAT " with "
|
|
"preliminary result %" GST_PTR_FORMAT, filter, caps);
|
|
|
|
result = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
|
|
gst_caps_unref (caps);
|
|
}
|
|
|
|
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 (GstInterleave * self, GstPad * pad,
|
|
const GstCaps * caps, const GstAudioInfo * info)
|
|
{
|
|
g_return_val_if_fail (GST_IS_INTERLEAVE_PAD (pad), FALSE);
|
|
|
|
/* 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;
|
|
|
|
self->width = GST_AUDIO_INFO_WIDTH (info);
|
|
self->rate = GST_AUDIO_INFO_RATE (info);
|
|
|
|
gst_interleave_set_process_function (self);
|
|
|
|
srccaps = gst_caps_copy (caps);
|
|
s = gst_caps_get_structure (srccaps, 0);
|
|
|
|
gst_structure_remove_field (s, "channel-mask");
|
|
|
|
gst_structure_set (s, "channels", G_TYPE_INT, self->channels, "layout",
|
|
G_TYPE_STRING, "interleaved", NULL);
|
|
gst_interleave_set_channel_positions (self, s);
|
|
|
|
gst_interleave_send_stream_start (self);
|
|
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-mask");
|
|
|
|
GST_DEBUG_OBJECT (self, "setting sinkcaps %" GST_PTR_FORMAT, sinkcaps);
|
|
|
|
gst_caps_replace (&self->sinkcaps, sinkcaps);
|
|
|
|
gst_caps_unref (sinkcaps);
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
cannot_change_caps:
|
|
{
|
|
GST_WARNING_OBJECT (self, "caps of %" GST_PTR_FORMAT " already set, can't "
|
|
"change", self->sinkcaps);
|
|
return FALSE;
|
|
}
|
|
src_did_not_accept:
|
|
{
|
|
GST_WARNING_OBJECT (self, "src did not accept setcaps()");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_sink_event (GstCollectPads * pads, GstCollectData * data,
|
|
GstEvent * event, gpointer user_data)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (user_data);
|
|
gboolean ret = TRUE;
|
|
|
|
GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
|
|
GST_DEBUG_PAD_NAME (data->pad));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_FLUSH_STOP:
|
|
GST_OBJECT_LOCK (self);
|
|
gst_event_replace (&self->pending_segment, NULL);
|
|
GST_OBJECT_UNLOCK (self);
|
|
break;
|
|
case GST_EVENT_SEGMENT:
|
|
{
|
|
GST_OBJECT_LOCK (self);
|
|
gst_event_replace (&self->pending_segment, event);
|
|
GST_OBJECT_UNLOCK (self);
|
|
break;
|
|
}
|
|
case GST_EVENT_CAPS:
|
|
{
|
|
GstCaps *caps;
|
|
GstAudioInfo info;
|
|
GValue *val;
|
|
guint channel;
|
|
|
|
gst_event_parse_caps (event, &caps);
|
|
|
|
if (!gst_audio_info_from_caps (&info, caps)) {
|
|
GST_WARNING_OBJECT (self, "invalid sink caps");
|
|
gst_event_unref (event);
|
|
event = NULL;
|
|
ret = FALSE;
|
|
break;
|
|
}
|
|
|
|
if (self->channel_positions_from_input
|
|
&& GST_AUDIO_INFO_CHANNELS (&info) == 1) {
|
|
channel = GST_INTERLEAVE_PAD_CAST (data->pad)->channel;
|
|
val = g_value_array_get_nth (self->input_channel_positions, channel);
|
|
g_value_set_enum (val, GST_AUDIO_INFO_POSITION (&info, 0));
|
|
}
|
|
|
|
if (!gst_pad_has_current_caps (data->pad))
|
|
g_atomic_int_add (&self->configured_sinkpads_counter, 1);
|
|
|
|
/* Last caps that are set on a sink pad are used as output caps */
|
|
if (g_atomic_int_get (&self->configured_sinkpads_counter) ==
|
|
self->channels) {
|
|
ret = gst_interleave_sink_setcaps (self, data->pad, caps, &info);
|
|
gst_event_unref (event);
|
|
event = NULL;
|
|
}
|
|
break;
|
|
}
|
|
case GST_EVENT_TAG:
|
|
GST_FIXME_OBJECT (self, "FIXME: merge tags and send after stream-start");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* now GstCollectPads can take care of the rest, e.g. EOS */
|
|
if (event != NULL)
|
|
return gst_collect_pads_event_default (pads, data, event, FALSE);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_sink_query (GstCollectPads * pads,
|
|
GstCollectData * data, GstQuery * query, gpointer user_data)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (user_data);
|
|
gboolean ret = TRUE;
|
|
|
|
GST_DEBUG ("Got %s query on pad %s:%s", GST_QUERY_TYPE_NAME (query),
|
|
GST_DEBUG_PAD_NAME (data->pad));
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_CAPS:
|
|
{
|
|
GstCaps *filter, *caps;
|
|
|
|
gst_query_parse_caps (query, &filter);
|
|
caps = gst_interleave_sink_getcaps (data->pad, self, filter);
|
|
gst_query_set_caps_result (query, caps);
|
|
gst_caps_unref (caps);
|
|
ret = TRUE;
|
|
break;
|
|
}
|
|
default:
|
|
ret = gst_collect_pads_query_default (pads, data, query, FALSE);
|
|
break;
|
|
}
|
|
|
|
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;
|
|
|
|
GValue item = { 0, };
|
|
|
|
ires = gst_iterator_next (it, &item);
|
|
switch (ires) {
|
|
case GST_ITERATOR_DONE:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
{
|
|
GstPad *pad = GST_PAD_CAST (g_value_dup_object (&item));
|
|
|
|
gint64 duration;
|
|
|
|
/* ask sink peer for duration */
|
|
res &= gst_pad_peer_query_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);
|
|
g_value_unset (&item);
|
|
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 (GstPad * pad, GstObject * parent, GstQuery * query)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (parent);
|
|
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;
|
|
default:
|
|
/* FIXME, needs a custom query handler because we have multiple
|
|
* sinkpads */
|
|
res = gst_pad_query_default (pad, parent, query);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
forward_event_func (const GValue * item, GValue * ret, GstEvent * event)
|
|
{
|
|
GstPad *pad = GST_PAD_CAST (g_value_dup_object (item));
|
|
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, GstObject * parent, GstEvent * event)
|
|
{
|
|
GstInterleave *self = GST_INTERLEAVE (parent);
|
|
gboolean result;
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_QOS:
|
|
/* QoS might be tricky */
|
|
result = FALSE;
|
|
break;
|
|
case GST_EVENT_SEEK:
|
|
{
|
|
GstSeekFlags flags;
|
|
|
|
gst_event_parse_seek (event, NULL, NULL, &flags, NULL, NULL, 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 ());
|
|
}
|
|
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;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_interleave_collected (GstCollectPads * pads, GstInterleave * self)
|
|
{
|
|
guint size;
|
|
GstBuffer *outbuf = NULL;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GSList *collected;
|
|
guint nsamples;
|
|
guint ncollected = 0;
|
|
gboolean empty = TRUE;
|
|
gint width = self->width / 8;
|
|
GstMapInfo write_info;
|
|
GstClockTime timestamp = -1;
|
|
|
|
size = gst_collect_pads_available (pads);
|
|
if (size == 0)
|
|
goto eos;
|
|
|
|
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);
|
|
|
|
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;
|
|
|
|
outbuf = gst_buffer_new_allocate (NULL, size * self->channels, NULL);
|
|
|
|
if (outbuf == NULL || gst_buffer_get_size (outbuf) < size * self->channels) {
|
|
gst_buffer_unref (outbuf);
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
|
|
gst_buffer_map (outbuf, &write_info, GST_MAP_WRITE);
|
|
memset (write_info.data, 0, size * self->channels);
|
|
|
|
for (collected = pads->data; collected != NULL; collected = collected->next) {
|
|
GstCollectData *cdata;
|
|
GstBuffer *inbuf;
|
|
guint8 *outdata;
|
|
GstMapInfo input_info;
|
|
gint channel;
|
|
|
|
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 (timestamp == -1)
|
|
timestamp = GST_BUFFER_TIMESTAMP (inbuf);
|
|
|
|
if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP))
|
|
goto next;
|
|
|
|
empty = FALSE;
|
|
channel = GST_INTERLEAVE_PAD_CAST (cdata->pad)->channel;
|
|
if (self->channels <= 64 && self->channel_mask) {
|
|
channel = self->default_channels_ordering_map[channel];
|
|
}
|
|
outdata = write_info.data + width * channel;
|
|
|
|
gst_buffer_map (inbuf, &input_info, GST_MAP_READ);
|
|
self->func (outdata, input_info.data, self->channels, nsamples);
|
|
gst_buffer_unmap (inbuf, &input_info);
|
|
|
|
next:
|
|
if (inbuf)
|
|
gst_buffer_unref (inbuf);
|
|
}
|
|
|
|
if (ncollected == 0) {
|
|
gst_buffer_unmap (outbuf, &write_info);
|
|
goto eos;
|
|
}
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
if (self->pending_segment) {
|
|
GstEvent *event;
|
|
GstSegment segment;
|
|
|
|
event = self->pending_segment;
|
|
self->pending_segment = NULL;
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
/* convert the input segment to time now */
|
|
gst_event_copy_segment (event, &segment);
|
|
|
|
if (segment.format != GST_FORMAT_TIME) {
|
|
gst_event_unref (event);
|
|
|
|
/* not time, convert */
|
|
switch (segment.format) {
|
|
case GST_FORMAT_BYTES:
|
|
segment.start *= width;
|
|
if (segment.stop != -1)
|
|
segment.stop *= width;
|
|
if (segment.position != -1)
|
|
segment.position *= width;
|
|
/* fallthrough for the samples case */
|
|
case GST_FORMAT_DEFAULT:
|
|
segment.start =
|
|
gst_util_uint64_scale_int (segment.start, GST_SECOND, self->rate);
|
|
if (segment.stop != -1)
|
|
segment.stop =
|
|
gst_util_uint64_scale_int (segment.stop, GST_SECOND,
|
|
self->rate);
|
|
if (segment.position != -1)
|
|
segment.position =
|
|
gst_util_uint64_scale_int (segment.position, GST_SECOND,
|
|
self->rate);
|
|
break;
|
|
default:
|
|
GST_WARNING ("can't convert segment values");
|
|
segment.start = 0;
|
|
segment.stop = -1;
|
|
segment.position = 0;
|
|
break;
|
|
}
|
|
event = gst_event_new_segment (&segment);
|
|
}
|
|
gst_pad_push_event (self->src, event);
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
}
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
if (timestamp != -1) {
|
|
self->offset = gst_util_uint64_scale_int (timestamp, self->rate,
|
|
GST_SECOND);
|
|
self->timestamp = timestamp;
|
|
}
|
|
|
|
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_buffer_unmap (outbuf, &write_info);
|
|
|
|
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");
|
|
if (outbuf)
|
|
gst_buffer_unref (outbuf);
|
|
gst_pad_push_event (self->src, gst_event_new_eos ());
|
|
return GST_FLOW_EOS;
|
|
}
|
|
}
|