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Original commit message from CVS: * gst/interleave/Makefile.am: * gst/interleave/deinterleave.h: * gst/interleave/interleave.h: * gst/interleave/plugin.h: Split definitions into separate header files for better documentation generation. * gst/interleave/deinterleave.c: (gst_deinterleave_base_init), (gst_deinterleave_class_init), (gst_deinterleave_sink_setcaps), (gst_deinterleave_process): Don't use alloca, allow caps changes as long as the number of channels does not change, don't use g_warning, return NOT_NEGOTIATED as early as possible and some other cleanup. * gst/interleave/interleave.c: (gst_interleave_base_init), (gst_interleave_class_init): Do some random cleanup. * tests/check/Makefile.am: * tests/check/elements/deinterleave.c: (GST_START_TEST), (deinterleave_chain_func), (deinterleave_pad_added), (deinterleave_suite): Add unit tests for the deinterleave element.
707 lines
18 KiB
C
707 lines
18 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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*
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* interleave.c: interleave samples, based on gstsignalprocessor.c
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-interleave
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*
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* <refsect2>
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* <para>
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* Merges separate mono inputs into one interleaved stream.
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* </para>
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* <title>Example launch line</title>
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* <para>
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* <programlisting>
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* gst-launch-0.10 filesrc location=song.ogg ! decodebin ! audioconvert ! ladspa-gverb name=g ! interleave name=i ! audioconvert ! autoaudiosink g. ! i.
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* </programlisting>
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* Apply ladspa gverb to the music and merge separate left/right outputs into a
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* stereo stream for playback.
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* </para>
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* </refsect2>
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*/
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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 "interleave.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%d",
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GST_PAD_SINK,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS ("audio/x-raw-float, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) 1, "
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"endianness = (int) BYTE_ORDER, " "width = (int) 32")
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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-float, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) [ 1, MAX ], "
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"endianness = (int) BYTE_ORDER, " "width = (int) 32")
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);
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#define GST_TYPE_INTERLEAVE_PAD (gst_interleave_pad_get_type ())
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#define GST_INTERLEAVE_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_INTERLEAVE_PAD,\
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GstInterleavePad))
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typedef struct _GstInterleavePad GstInterleavePad;
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typedef GstPadClass GstInterleavePadClass;
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struct _GstInterleavePad
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{
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GstPad parent;
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GstBuffer *pen;
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guint channel;
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/* these are only used for sink pads */
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guint samples_avail;
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gfloat *data;
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};
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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 (!type) {
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static const GTypeInfo info = {
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sizeof (GstInterleavePadClass), NULL, NULL, NULL, NULL,
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NULL, sizeof (GstInterleavePad), 0, NULL
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};
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type = g_type_register_static (GST_TYPE_PAD, "GstInterleavePad", &info, 0);
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}
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return type;
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}
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GST_BOILERPLATE (GstInterleave, gst_interleave, GstElement, GST_TYPE_ELEMENT);
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static gboolean gst_interleave_src_activate_pull (GstPad * pad,
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gboolean active);
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static gboolean gst_interleave_sink_activate_push (GstPad * pad,
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gboolean active);
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static GstPad *gst_interleave_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static GstFlowReturn gst_interleave_getrange (GstPad * pad,
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guint64 offset, guint length, GstBuffer ** buffer);
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static GstFlowReturn gst_interleave_chain (GstPad * pad, GstBuffer * buffer);
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static gboolean gst_interleave_src_setcaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_interleave_sink_setcaps (GstPad * pad, GstCaps * caps);
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static GstCaps *gst_interleave_src_getcaps (GstPad * pad);
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static void
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gst_interleave_base_init (gpointer g_class)
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{
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gst_element_class_set_details_simple (g_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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gst_element_class_add_pad_template (g_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_add_pad_template (g_class,
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gst_static_pad_template_get (&src_template));
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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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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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gstelement_class->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_interleave_request_new_pad);
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}
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static void
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gst_interleave_init (GstInterleave * self, GstInterleaveClass * klass)
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{
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self->pending_in = 0;
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self->mode = GST_ACTIVATE_NONE;
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self->src = gst_pad_new_from_static_template (&src_template, "src");
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gst_pad_set_getrange_function (self->src,
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GST_DEBUG_FUNCPTR (gst_interleave_getrange));
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gst_pad_set_activatepull_function (self->src,
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GST_DEBUG_FUNCPTR (gst_interleave_src_activate_pull));
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gst_pad_set_setcaps_function (self->src,
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GST_DEBUG_FUNCPTR (gst_interleave_src_setcaps));
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gst_pad_set_getcaps_function (self->src,
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GST_DEBUG_FUNCPTR (gst_interleave_src_getcaps));
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gst_element_add_pad (GST_ELEMENT (self), self->src);
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}
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static GstPad *
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gst_interleave_request_new_pad (GstElement * element, GstPadTemplate * templ,
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const gchar * name)
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{
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GstInterleave *self = GST_INTERLEAVE (element);
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GstPad *new_pad;
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gchar *pad_name;
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pad_name = g_strdup_printf ("sink%d", self->channels);
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new_pad = g_object_new (GST_TYPE_INTERLEAVE_PAD, "name", pad_name,
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"direction", templ->direction, "template", templ, NULL);
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g_free (pad_name);
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GST_INTERLEAVE_PAD (new_pad)->channel = self->channels;
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++self->channels;
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gst_pad_set_setcaps_function (new_pad,
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GST_DEBUG_FUNCPTR (gst_interleave_sink_setcaps));
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gst_pad_set_chain_function (new_pad,
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GST_DEBUG_FUNCPTR (gst_interleave_chain));
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gst_pad_set_activatepush_function (new_pad,
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GST_DEBUG_FUNCPTR (gst_interleave_sink_activate_push));
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self->pending_in++;
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GST_PAD_UNSET_FLUSHING (new_pad);
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gst_element_add_pad (element, new_pad);
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return new_pad;
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}
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static void
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gst_interleave_unset_caps (GstInterleave * self)
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{
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GstElement *elem;
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GList *sinks;
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elem = GST_ELEMENT (self);
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GST_INFO_OBJECT (self, "unset_caps()");
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for (sinks = elem->sinkpads; sinks; sinks = sinks->next)
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gst_pad_set_caps (GST_PAD (sinks->data), NULL);
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}
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static gboolean
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gst_interleave_sink_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstInterleave *self;
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self = GST_INTERLEAVE (gst_pad_get_parent (pad));
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if (self->sinkcaps && !gst_caps_is_equal (caps, self->sinkcaps))
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goto cannot_change_caps;
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if (self->mode == GST_ACTIVATE_PULL) {
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GstPad *peer;
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if ((peer = gst_pad_get_peer (pad))) {
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gboolean res = gst_pad_set_caps (peer, caps);
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gst_object_unref (peer);
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if (!res)
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goto peer_did_not_accept;
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}
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} else {
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GstCaps *srccaps;
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gboolean res;
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srccaps = gst_caps_copy (caps);
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gst_structure_set (gst_caps_get_structure (srccaps, 0), "channels",
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G_TYPE_INT, self->channels, NULL);
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res = gst_pad_set_caps (self->src, srccaps);
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gst_caps_unref (srccaps);
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if (!res)
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goto src_did_not_accept;
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}
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if (!self->sinkcaps)
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gst_caps_replace (&self->sinkcaps, caps);
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return TRUE;
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cannot_change_caps:
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{
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GST_DEBUG_OBJECT (self, "caps of %" GST_PTR_FORMAT " already set, can't "
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"change", self->sinkcaps);
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return FALSE;
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}
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peer_did_not_accept:
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{
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GST_DEBUG_OBJECT (self, "peer did not accept setcaps()");
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return FALSE;
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}
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src_did_not_accept:
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{
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GST_DEBUG_OBJECT (self, "src did not accept setcaps()");
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return FALSE;
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}
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}
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static gboolean
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gst_interleave_src_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstInterleave *self;
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gint channels;
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self = GST_INTERLEAVE (gst_pad_get_parent (pad));
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if (!gst_structure_get_int (gst_caps_get_structure (caps, 0), "channels",
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&channels))
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goto impossible;
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if (channels != self->channels)
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goto wrong_num_channels;
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if (self->mode == GST_ACTIVATE_PULL) {
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GstCaps *sinkcaps;
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GList *l;
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sinkcaps = gst_caps_copy (caps);
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gst_structure_set (gst_caps_get_structure (sinkcaps, 0), "channels",
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G_TYPE_INT, 1, NULL);
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for (l = GST_ELEMENT (self)->sinkpads; l; l = l->next)
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if (!gst_pad_set_caps (GST_PAD (l->data), sinkcaps))
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goto sinks_did_not_accept;
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gst_caps_unref (sinkcaps);
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}
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gst_object_unref (self);
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return TRUE;
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impossible:
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{
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g_warning ("caps didn't have channels property, how is this possible");
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gst_object_unref (self);
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return FALSE;
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}
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wrong_num_channels:
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{
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GST_INFO_OBJECT (self, "bad number of channels (%d != %d)",
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self->channels, channels);
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gst_object_unref (self);
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return FALSE;
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}
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sinks_did_not_accept:
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{
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/* assume they already logged */
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gst_object_unref (self);
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return FALSE;
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}
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}
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static GstCaps *
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gst_interleave_src_getcaps (GstPad * pad)
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{
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GstInterleave *self;
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GList *l;
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GstCaps *ret;
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self = GST_INTERLEAVE (gst_pad_get_parent (pad));
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ret = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
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for (l = GST_ELEMENT (self)->sinkpads; l; l = l->next) {
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GstCaps *sinkcaps, *oldcaps;
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oldcaps = ret;
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sinkcaps = gst_pad_get_caps (GST_PAD (l->data));
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ret = gst_caps_intersect (sinkcaps, oldcaps);
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gst_caps_unref (oldcaps);
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gst_caps_unref (sinkcaps);
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}
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if (self->channels)
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gst_structure_set (gst_caps_get_structure (ret, 0), "channels", G_TYPE_INT,
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self->channels, NULL);
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gst_object_unref (self);
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return ret;
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}
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static void
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gst_interleave_update_inputs (GstInterleave * self, guint nprocessed)
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{
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GstElement *elem = (GstElement *) self;
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GList *sinks;
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for (sinks = elem->sinkpads; sinks; sinks = sinks->next) {
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GstInterleavePad *sinkpad;
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sinkpad = (GstInterleavePad *) sinks->data;
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g_assert (sinkpad->samples_avail >= nprocessed);
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if (sinkpad->pen && sinkpad->samples_avail == nprocessed) {
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/* used up this buffer, unpen */
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gst_buffer_unref (sinkpad->pen);
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sinkpad->pen = NULL;
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}
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if (!sinkpad->pen) {
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/* this buffer was used up */
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self->pending_in++;
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sinkpad->data = NULL;
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sinkpad->samples_avail = 0;
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} else {
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/* advance ->data pointers and decrement ->samples_avail, unreffing buffer
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if no samples are left */
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sinkpad->samples_avail -= nprocessed;
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sinkpad->data += nprocessed; /* gfloat* arithmetic */
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}
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}
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}
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static GstFlowReturn
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gst_interleave_process (GstInterleave * self, guint nframes, GstBuffer ** buf)
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{
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GstFlowReturn ret;
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GstElement *elem;
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GList *sinks;
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guint bufsize, i, j, channels;
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gfloat *in, *out;
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g_return_val_if_fail (self->pending_in == 0, GST_FLOW_ERROR);
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elem = GST_ELEMENT (self);
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/* determine the number of samples that we can process */
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for (sinks = elem->sinkpads; sinks; sinks = sinks->next) {
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GstInterleavePad *sinkpad = (GstInterleavePad *) sinks->data;
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g_assert (sinkpad->samples_avail > 0);
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nframes = MIN (nframes, sinkpad->samples_avail);
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}
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channels = self->channels;
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bufsize = nframes * channels * sizeof (gfloat);
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ret = gst_pad_alloc_buffer (GST_PAD (self->src), -1,
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bufsize, GST_PAD_CAPS (self->src), buf);
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if (ret != GST_FLOW_OK)
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goto alloc_buffer_failed;
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if (GST_BUFFER_SIZE (*buf) != bufsize)
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goto alloc_buffer_bad_size;
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gst_buffer_set_caps (*buf, GST_PAD_CAPS (self->src));
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/* do the thing */
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for (sinks = elem->sinkpads, i = 0; sinks; sinks = sinks->next, i++) {
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GstInterleavePad *sinkpad = (GstInterleavePad *) sinks->data;
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out = (gfloat *) GST_BUFFER_DATA (*buf);
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out += i; /* gfloat* arith */
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in = sinkpad->data;
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for (j = 0; j < nframes; j++)
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out[j * channels] = in[j];
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}
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gst_interleave_update_inputs (self, nframes);
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return ret;
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alloc_buffer_failed:
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{
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GST_WARNING ("gst_pad_alloc_buffer() returned %d", ret);
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return ret;
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}
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alloc_buffer_bad_size:
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{
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GST_WARNING ("called alloc_buffer() for %d bytes but got %d", bufsize,
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GST_BUFFER_SIZE (*buf));
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gst_buffer_unref (*buf);
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return GST_FLOW_NOT_NEGOTIATED;
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}
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}
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static GstFlowReturn
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gst_interleave_pen_buffer (GstInterleave * self, GstPad * pad,
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GstBuffer * buffer)
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{
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GstInterleavePad *spad = (GstInterleavePad *) pad;
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if (spad->pen)
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goto had_buffer;
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/* keep the reference */
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spad->pen = buffer;
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spad->data = (gfloat *) GST_BUFFER_DATA (buffer);
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spad->samples_avail = GST_BUFFER_SIZE (buffer) / sizeof (float);
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g_assert (self->pending_in != 0);
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self->pending_in--;
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return GST_FLOW_OK;
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/* ERRORS */
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had_buffer:
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{
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GST_WARNING ("Pad %s:%s already has penned buffer",
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GST_DEBUG_PAD_NAME (pad));
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gst_buffer_unref (buffer);
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return GST_FLOW_ERROR;
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}
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}
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static void
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gst_interleave_flush (GstInterleave * self)
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{
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GList *pads;
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|
|
|
GST_INFO_OBJECT (self, "flush()");
|
|
|
|
for (pads = GST_ELEMENT (self)->sinkpads; pads; pads = pads->next) {
|
|
GstInterleavePad *spad = (GstInterleavePad *) pads->data;
|
|
|
|
if (spad->pen) {
|
|
gst_buffer_unref (spad->pen);
|
|
spad->pen = NULL;
|
|
spad->data = NULL;
|
|
spad->samples_avail = 0;
|
|
}
|
|
}
|
|
|
|
self->pending_in = GST_ELEMENT (self)->numsinkpads;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_interleave_do_pulls (GstInterleave * self, guint nframes)
|
|
{
|
|
GList *sinkpads;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
/* FIXME: not threadsafe atm */
|
|
|
|
sinkpads = GST_ELEMENT (self)->sinkpads;
|
|
|
|
for (; sinkpads; sinkpads = sinkpads->next) {
|
|
GstInterleavePad *spad = (GstInterleavePad *) sinkpads->data;
|
|
GstBuffer *buf;
|
|
|
|
if (spad->pen) {
|
|
g_warning ("Unexpectedly full buffer pen for pad %s:%s",
|
|
GST_DEBUG_PAD_NAME (spad));
|
|
continue;
|
|
}
|
|
|
|
ret =
|
|
gst_pad_pull_range (GST_PAD (spad), -1, nframes * sizeof (gfloat),
|
|
&buf);
|
|
if (ret != GST_FLOW_OK)
|
|
goto pull_failed;
|
|
|
|
if (!buf)
|
|
goto no_buffer;
|
|
|
|
ret = gst_interleave_pen_buffer (self, GST_PAD (spad), buf);
|
|
if (ret != GST_FLOW_OK)
|
|
goto pull_failed;
|
|
}
|
|
|
|
return ret;
|
|
|
|
pull_failed:
|
|
{
|
|
gst_interleave_flush (self);
|
|
return ret;
|
|
}
|
|
no_buffer:
|
|
{
|
|
g_critical ("Pull failed to make a buffer!");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_interleave_getrange (GstPad * pad, guint64 offset,
|
|
guint length, GstBuffer ** buffer)
|
|
{
|
|
GstInterleave *self;
|
|
GstFlowReturn ret = GST_FLOW_ERROR;
|
|
guint nframes;
|
|
|
|
self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
|
|
nframes = length / self->channels / sizeof (gfloat);
|
|
|
|
ret = gst_interleave_do_pulls (self, nframes);
|
|
|
|
if (ret == GST_FLOW_OK)
|
|
ret = gst_interleave_process (self, nframes, buffer);
|
|
|
|
GST_DEBUG_OBJECT (self, "returns %s", gst_flow_get_name (ret));
|
|
|
|
gst_object_unref (self);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_interleave_chain (GstPad * pad, GstBuffer * buffer)
|
|
{
|
|
GstFlowReturn ret;
|
|
GstInterleave *self;
|
|
|
|
self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
|
|
ret = gst_interleave_pen_buffer (self, pad, buffer);
|
|
if (ret != GST_FLOW_OK)
|
|
goto pen_failed;
|
|
|
|
if (self->pending_in == 0) {
|
|
GstBuffer *out;
|
|
|
|
ret = gst_interleave_process (self, G_MAXUINT, &out);
|
|
if (ret != GST_FLOW_OK)
|
|
goto process_failed;
|
|
|
|
ret = gst_pad_push (self->src, out);
|
|
}
|
|
|
|
done:
|
|
gst_object_unref (self);
|
|
return ret;
|
|
|
|
pen_failed:
|
|
{
|
|
GST_WARNING_OBJECT (self, "pen failed");
|
|
goto done;
|
|
}
|
|
process_failed:
|
|
{
|
|
GST_WARNING_OBJECT (self, "process failed");
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_sink_activate_push (GstPad * pad, gboolean active)
|
|
{
|
|
gboolean result = TRUE;
|
|
GstInterleave *self;
|
|
|
|
self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
|
|
if (active) {
|
|
if (self->mode == GST_ACTIVATE_NONE) {
|
|
self->mode = GST_ACTIVATE_PUSH;
|
|
result = TRUE;
|
|
} else if (self->mode == GST_ACTIVATE_PUSH) {
|
|
result = TRUE;
|
|
} else {
|
|
g_warning ("foo");
|
|
result = FALSE;
|
|
}
|
|
} else {
|
|
if (self->mode == GST_ACTIVATE_NONE) {
|
|
result = TRUE;
|
|
} else if (self->mode == GST_ACTIVATE_PUSH) {
|
|
self->mode = GST_ACTIVATE_NONE;
|
|
result = TRUE;
|
|
} else {
|
|
g_warning ("foo");
|
|
result = FALSE;
|
|
}
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (self, "result : %d", result);
|
|
|
|
gst_object_unref (self);
|
|
|
|
return result;
|
|
}
|
|
|
|
static gboolean
|
|
gst_interleave_src_activate_pull (GstPad * pad, gboolean active)
|
|
{
|
|
gboolean result = TRUE;
|
|
GstInterleave *self;
|
|
|
|
self = GST_INTERLEAVE (gst_pad_get_parent (pad));
|
|
|
|
if (active) {
|
|
if (self->mode == GST_ACTIVATE_NONE) {
|
|
GList *l;
|
|
|
|
if (GST_ELEMENT (self)->sinkpads) {
|
|
for (l = GST_ELEMENT (self)->sinkpads; l; l = l->next)
|
|
result &= gst_pad_activate_pull (GST_PAD (l->data), active);
|
|
} else {
|
|
/* nobody has requested pads, seems i am operating in delayed-request
|
|
push mode */
|
|
result = FALSE;
|
|
}
|
|
if (result)
|
|
self->mode = GST_ACTIVATE_PULL;
|
|
} else if (self->mode == GST_ACTIVATE_PULL) {
|
|
result = TRUE;
|
|
} else {
|
|
g_warning ("foo");
|
|
result = FALSE;
|
|
}
|
|
} else {
|
|
if (self->mode == GST_ACTIVATE_NONE) {
|
|
result = TRUE;
|
|
} else if (self->mode == GST_ACTIVATE_PULL) {
|
|
GList *l;
|
|
|
|
for (l = GST_ELEMENT (self)->sinkpads; l; l = l->next)
|
|
result &= gst_pad_activate_pull (GST_PAD (l->data), active);
|
|
if (result)
|
|
self->mode = GST_ACTIVATE_NONE;
|
|
result = TRUE;
|
|
} else {
|
|
g_warning ("foo");
|
|
result = FALSE;
|
|
}
|
|
|
|
gst_interleave_unset_caps (self);
|
|
gst_interleave_flush (self);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (self, "result : %d", result);
|
|
|
|
gst_object_unref (self);
|
|
|
|
return result;
|
|
}
|