mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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83bedf3e07
Original commit message from CVS: * docs/plugins/gst-plugins-good-plugins-docs.sgml: * docs/plugins/gst-plugins-good-plugins-sections.txt: * docs/plugins/inspect/plugin-audiofxgood.xml: cleanup -unused.txt to make it useful, add previously missing docs * ext/Makefile.am: * ext/esd/esdmon.c: * ext/esd/esdsink.c: * ext/esd/gstesd.c: (plugin_init): reflow to get rid of two external symbols * gst/audiofxgood/audiofx.c: (plugin_init): re-add
437 lines
13 KiB
C
437 lines
13 KiB
C
/* GStreamer
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* Copyright (C) <2001,2002> Richard Boulton <richard-gst@tartarus.org>
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*
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* Based on example.c:
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "esdmon.h"
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#include <esd.h>
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#include <unistd.h>
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/* elementfactory information */
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static const GstElementDetails esdmon_details =
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GST_ELEMENT_DETAILS ("Esound audio monitor",
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"Source/Audio",
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"Monitors audio from an esound server",
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"Richard Boulton <richard-gst@tartarus.org>");
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/* Signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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ARG_0,
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ARG_DEPTH,
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ARG_BYTESPERREAD,
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ARG_CUROFFSET,
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ARG_CHANNELS,
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ARG_RATE,
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ARG_HOST
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};
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static GstStaticPadTemplate src_factory = 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-int, "
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"endianness = (int) " G_STRINGIFY (G_BYTE_ORDER) ", "
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"signed = (boolean) TRUE, "
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"width = (int) 16, "
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"depth = (int) 16, "
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"rate = [ 8000, 96000 ], "
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"channels = [ 1, 2 ]; "
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"audio/x-raw-int, "
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"signed = (boolean) FALSE, "
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"width = (int) 8, "
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"depth = (int) 8, " "rate = [ 8000, 96000 ], " "channels = [ 1, 2 ]")
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);
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static void gst_esdmon_base_init (gpointer g_class);
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static void gst_esdmon_class_init (gpointer g_class, gpointer class_data);
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static void gst_esdmon_init (GTypeInstance * instance, gpointer g_class);
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static gboolean gst_esdmon_open_audio (GstEsdmon * src);
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static void gst_esdmon_close_audio (GstEsdmon * src);
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static GstStateChangeReturn gst_esdmon_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_esdmon_sync_parms (GstEsdmon * esdmon);
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static GstData *gst_esdmon_get (GstPad * pad);
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static void gst_esdmon_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_esdmon_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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#define GST_TYPE_ESDMON_DEPTHS (gst_esdmon_depths_get_type())
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static GType
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gst_esdmon_depths_get_type (void)
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{
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static GType esdmon_depths_type = 0;
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static const GEnumValue esdmon_depths[] = {
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{8, "8 Bits", "8"},
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{16, "16 Bits", "16"},
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{0, NULL, NULL},
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};
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if (!esdmon_depths_type) {
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esdmon_depths_type =
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g_enum_register_static ("GstEsdmonDepths", esdmon_depths);
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}
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return esdmon_depths_type;
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}
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#define GST_TYPE_ESDMON_CHANNELS (gst_esdmon_channels_get_type())
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static GType
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gst_esdmon_channels_get_type (void)
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{
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static GType esdmon_channels_type = 0;
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static const GEnumValue esdmon_channels[] = {
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{1, "Mono", "mono"},
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{2, "Stereo", "stereo"},
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{0, NULL, NULL},
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};
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if (!esdmon_channels_type) {
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esdmon_channels_type =
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g_enum_register_static ("GstEsdmonChannels", esdmon_channels);
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}
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return esdmon_channels_type;
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}
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static GstElementClass *parent_class = NULL;
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/*static guint gst_esdmon_signals[LAST_SIGNAL] = { 0 }; */
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GType
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gst_esdmon_get_type (void)
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{
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static GType esdmon_type = 0;
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if (!esdmon_type) {
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static const GTypeInfo esdmon_info = {
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sizeof (GstEsdmonClass),
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gst_esdmon_base_init,
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NULL,
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gst_esdmon_class_init,
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NULL,
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NULL,
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sizeof (GstEsdmon),
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0,
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gst_esdmon_init,
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};
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esdmon_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstEsdmon", &esdmon_info, 0);
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}
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return esdmon_type;
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}
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static void
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gst_esdmon_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&src_factory));
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gst_element_class_set_details (element_class, &esdmon_details);
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}
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static void
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gst_esdmon_class_init (gpointer g_class, gpointer class_data)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (g_class);
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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parent_class = g_type_class_peek_parent (g_class);
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g_object_class_install_property (gobject_class, ARG_BYTESPERREAD, g_param_spec_ulong ("bytes_per_read", "bytes_per_read", "bytes_per_read", 0, G_MAXULONG, 0, G_PARAM_READWRITE)); /* CHECKME */
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g_object_class_install_property (gobject_class, ARG_CUROFFSET, g_param_spec_ulong ("curoffset", "curoffset", "curoffset", 0, G_MAXULONG, 0, G_PARAM_READABLE)); /* CHECKME */
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g_object_class_install_property (gobject_class, ARG_DEPTH, g_param_spec_enum ("depth", "depth", "depth", GST_TYPE_ESDMON_DEPTHS, 16, G_PARAM_READWRITE)); /* CHECKME! */
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g_object_class_install_property (gobject_class, ARG_CHANNELS, g_param_spec_enum ("channels", "channels", "channels", GST_TYPE_ESDMON_CHANNELS, 2, G_PARAM_READWRITE)); /* CHECKME! */
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g_object_class_install_property (gobject_class, ARG_RATE, g_param_spec_int ("frequency", "frequency", "frequency", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
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g_object_class_install_property (gobject_class, ARG_HOST, g_param_spec_string ("host", "host", "host", NULL, G_PARAM_READWRITE)); /* CHECKME */
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gobject_class->set_property = gst_esdmon_set_property;
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gobject_class->get_property = gst_esdmon_get_property;
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gstelement_class->change_state = gst_esdmon_change_state;
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}
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static void
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gst_esdmon_init (GTypeInstance * instance, gpointer g_class)
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{
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GstEsdmon *esdmon = GST_ESDMON (instance);
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esdmon->srcpad =
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gst_pad_new_from_template (gst_element_class_get_pad_template
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(GST_ELEMENT_GET_CLASS (esdmon), "src"), "src");
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gst_pad_set_get_function (esdmon->srcpad, gst_esdmon_get);
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gst_pad_use_explicit_caps (esdmon->srcpad);
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gst_element_add_pad (GST_ELEMENT (esdmon), esdmon->srcpad);
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esdmon->fd = -1;
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/* FIXME: get default from somewhere better than just putting them inline. */
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esdmon->depth = 16;
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esdmon->channels = 2;
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esdmon->frequency = 44100;
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esdmon->host = NULL;
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esdmon->bytes_per_read = 4096;
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esdmon->curoffset = 0;
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esdmon->basetime = 0;
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esdmon->samples_since_basetime = 0;
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}
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static gboolean
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gst_esdmon_sync_parms (GstEsdmon * esdmon)
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{
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g_return_val_if_fail (esdmon != NULL, FALSE);
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g_return_val_if_fail (GST_IS_ESDMON (esdmon), FALSE);
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if (esdmon->fd == -1)
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return TRUE;
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/* Need to set fd to use new parameters: only way to do this is to reopen. */
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gst_esdmon_close_audio (esdmon);
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return gst_esdmon_open_audio (esdmon);
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}
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static GstData *
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gst_esdmon_get (GstPad * pad)
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{
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GstEsdmon *esdmon;
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GstBuffer *buf;
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glong readbytes;
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glong readsamples;
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g_return_val_if_fail (pad != NULL, NULL);
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esdmon = GST_ESDMON (gst_pad_get_parent (pad));
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GST_DEBUG ("attempting to read something from esdmon");
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buf = gst_buffer_new ();
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g_return_val_if_fail (buf, NULL);
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GST_BUFFER_DATA (buf) = (gpointer) g_malloc (esdmon->bytes_per_read);
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readbytes = read (esdmon->fd, GST_BUFFER_DATA (buf), esdmon->bytes_per_read);
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if (readbytes == 0) {
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gst_element_set_eos (GST_ELEMENT (esdmon));
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return NULL;
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}
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if (!GST_PAD_CAPS (pad)) {
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GstCaps *caps = gst_caps_new_simple ("audio/x-raw-int",
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"endianness", G_TYPE_INT, G_BYTE_ORDER,
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"signed", G_TYPE_BOOLEAN, esdmon->depth == 8 ? FALSE : TRUE,
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"width", G_TYPE_INT, esdmon->depth,
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"depth", G_TYPE_INT, esdmon->depth,
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"rate", G_TYPE_INT, esdmon->frequency,
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"channels", G_TYPE_INT, esdmon->channels,
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NULL);
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/* set caps on src pad */
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if (gst_pad_set_explicit_caps (esdmon->srcpad, caps) <= 0) {
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GST_ELEMENT_ERROR (esdmon, CORE, NEGOTIATION, (NULL), (NULL));
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gst_caps_free (caps);
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return NULL;
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}
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gst_caps_free (caps);
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}
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GST_BUFFER_SIZE (buf) = readbytes;
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GST_BUFFER_OFFSET (buf) = esdmon->curoffset;
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GST_BUFFER_TIMESTAMP (buf) = esdmon->basetime +
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esdmon->samples_since_basetime * GST_SECOND / esdmon->frequency;
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esdmon->curoffset += readbytes;
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readsamples = readbytes / esdmon->channels;
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if (esdmon->depth == 16)
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readsamples /= 2;
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esdmon->samples_since_basetime += readsamples;
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GST_DEBUG ("pushed buffer from esdmon of %ld bytes, timestamp %"
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G_GINT64_FORMAT, readbytes, GST_BUFFER_TIMESTAMP (buf));
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gst_object_unref (esdmon);
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return GST_DATA (buf);
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}
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static void
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gst_esdmon_set_property (GObject * object, guint prop_id, const GValue * value,
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GParamSpec * pspec)
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{
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GstEsdmon *esdmon;
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g_return_if_fail (GST_IS_ESDMON (object));
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esdmon = GST_ESDMON (object);
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switch (prop_id) {
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case ARG_BYTESPERREAD:
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esdmon->bytes_per_read = g_value_get_ulong (value);
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/* No need to sync params - will just happen on next read. */
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break;
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case ARG_DEPTH:
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esdmon->depth = g_value_get_enum (value);
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gst_esdmon_sync_parms (esdmon);
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break;
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case ARG_CHANNELS:
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esdmon->channels = g_value_get_enum (value);
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gst_esdmon_sync_parms (esdmon);
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break;
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case ARG_RATE:
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/* Preserve the timestamps */
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esdmon->basetime =
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esdmon->samples_since_basetime * GST_SECOND / esdmon->frequency;
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esdmon->samples_since_basetime = 0;
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/* Set the new frequency */
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esdmon->frequency = g_value_get_int (value);
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gst_esdmon_sync_parms (esdmon);
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break;
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case ARG_HOST:
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if (esdmon->host != NULL)
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g_free (esdmon->host);
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if (g_value_get_string (value) == NULL)
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esdmon->host = NULL;
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else
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esdmon->host = g_strdup (g_value_get_string (value));
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break;
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default:
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break;
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}
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}
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static void
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gst_esdmon_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstEsdmon *esdmon;
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g_return_if_fail (GST_IS_ESDMON (object));
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esdmon = GST_ESDMON (object);
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switch (prop_id) {
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case ARG_BYTESPERREAD:
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g_value_set_ulong (value, esdmon->bytes_per_read);
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break;
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case ARG_CUROFFSET:
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g_value_set_ulong (value, esdmon->curoffset);
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break;
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case ARG_DEPTH:
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g_value_set_enum (value, esdmon->depth);
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break;
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case ARG_CHANNELS:
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g_value_set_enum (value, esdmon->channels);
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break;
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case ARG_RATE:
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g_value_set_int (value, esdmon->frequency);
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break;
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case ARG_HOST:
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g_value_set_string (value, esdmon->host);
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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 gboolean
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gst_esdmon_open_audio (GstEsdmon * src)
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{
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/* Name used by esound for this connection. */
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const char connname[] = "GStreamer";
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/* Bitmap describing audio format. */
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esd_format_t esdformat = ESD_STREAM | ESD_PLAY;
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g_return_val_if_fail (src->fd == -1, FALSE);
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if (src->depth == 16)
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esdformat |= ESD_BITS16;
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else if (src->depth == 8)
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esdformat |= ESD_BITS8;
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else {
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GST_DEBUG ("esdmon: invalid bit depth (%d)", src->depth);
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return FALSE;
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}
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if (src->channels == 2)
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esdformat |= ESD_STEREO;
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else if (src->channels == 1)
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esdformat |= ESD_MONO;
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else {
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GST_DEBUG ("esdmon: invalid number of channels (%d)", src->channels);
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return FALSE;
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}
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GST_DEBUG ("esdmon: attempting to open connection to esound server");
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src->fd = esd_monitor_stream (esdformat, src->frequency, src->host, connname);
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if (src->fd < 0) {
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GST_DEBUG ("esdmon: can't open connection to esound server");
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return FALSE;
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}
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GST_OBJECT_FLAG_SET (src, GST_ESDMON_OPEN);
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return TRUE;
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}
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static void
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gst_esdmon_close_audio (GstEsdmon * src)
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{
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if (src->fd < 0)
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return;
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close (src->fd);
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src->fd = -1;
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GST_OBJECT_FLAG_UNSET (src, GST_ESDMON_OPEN);
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GST_DEBUG ("esdmon: closed sound device");
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}
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static GstStateChangeReturn
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gst_esdmon_change_state (GstElement * element, GstStateChange transition)
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{
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g_return_val_if_fail (GST_IS_ESDMON (element), FALSE);
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/* if going down into NULL state, close the fd if it's open */
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if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
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if (GST_OBJECT_FLAG_IS_SET (element, GST_ESDMON_OPEN))
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gst_esdmon_close_audio (GST_ESDMON (element));
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/* otherwise (READY or higher) we need to open the fd */
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} else {
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if (!GST_OBJECT_FLAG_IS_SET (element, GST_ESDMON_OPEN)) {
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if (!gst_esdmon_open_audio (GST_ESDMON (element)))
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return GST_STATE_CHANGE_FAILURE;
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}
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}
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if (GST_ELEMENT_CLASS (parent_class)->change_state)
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return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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return GST_STATE_CHANGE_SUCCESS;
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}
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