mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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taaz's virtual patch
Original commit message from CVS: taaz's virtual patch
This commit is contained in:
Thomas Vander Stichele
parent
6a4c66f0a1
commit
cf0ea9d034
5 changed files with 665 additions and 6 deletions
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@ -1048,7 +1048,7 @@ sys/vcd/Makefile
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sys/vga/Makefile
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sys/xvideo/Makefile
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ext/Makefile
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ext/a52/Makefile
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ext/a52dec/Makefile
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ext/aalib/Makefile
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ext/alsa/Makefile
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ext/arts/Makefile
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@ -1,7 +1,7 @@
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if USE_A52
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A52_DIR=a52
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if USE_A52DEC
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A52DEC_DIR=a52dec
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else
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A52_DIR=
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A52DEC_DIR=
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endif
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if USE_AALIB
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@ -178,7 +178,7 @@ else
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XMMS_DIR=
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endif
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SUBDIRS=$(A52_DIR) $(AALIB_DIR) $(ALSA_DIR) \
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SUBDIRS=$(A52DEC_DIR) $(AALIB_DIR) $(ALSA_DIR) \
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$(ARTS_DIR) $(ARTSC_DIR) $(AUDIOFILE_DIR) \
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$(AVIFILE_DIR) $(CDPARANOIA_DIR) $(DV_DIR) $(DVDREAD_DIR) $(ESD_DIR) \
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$(FESTIVAL_DIR) $(FLAC_DIR) $(GNOMEVFS_DIR) $(GSM_DIR) $(HERMES_DIR) \
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@ -186,7 +186,7 @@ SUBDIRS=$(A52_DIR) $(AALIB_DIR) $(ALSA_DIR) \
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$(OPENQUICKTIME_DIR) $(RTP_DIR) $(SDL_DIR) $(SHOUT_DIR) \
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$(SMOOTHWAVE_DIR) $(VORBIS_DIR) $(XMMS_DIR)
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DIST_SUBDIRS=a52 aalib alsa arts artsd avifile audiofile cdparanoia \
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DIST_SUBDIRS=a52dec aalib alsa arts artsd avifile audiofile cdparanoia \
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dv dvdread esd \
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festival flac gnomevfs gsm hermes http jpeg lame mad mikmod mpeg2dec \
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openquicktime rtp sdl shout smoothwave vorbis xmms
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16
ext/a52dec/Makefile.am
Normal file
16
ext/a52dec/Makefile.am
Normal file
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@ -0,0 +1,16 @@
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filterdir = $(libdir)/gst
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filter_LTLIBRARIES = libgsta52dec.la
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libgsta52dec_la_SOURCES = gsta52dec.c
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libgsta52dec_la_LIBADD = -la52 -lm
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libgsta52dec_la_CFLAGS = -O3 $(ARCHFLAGS) $(FOMIT_FRAME_POINTER) $(GLIB_CFLAGS) $(XML_CFLAGS) $(GST_CFLAGS)
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noinst_HEADERS = gsta52dec.h
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if HAVE_CPU_I386
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ARCHFLAGS = -m486
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else
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ARCHFLAGS =
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endif
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569
ext/a52dec/gsta52dec.c
Normal file
569
ext/a52dec/gsta52dec.c
Normal file
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@ -0,0 +1,569 @@
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/* GStreamer
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* Copyright (C) <2001> David I. Lehn <dlehn@users.sourceforge.net>
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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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#include <string.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <gst/gst.h>
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#include <a52dec/a52.h>
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#include <a52dec/mm_accel.h>
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#include "gsta52dec.h"
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/* elementfactory information */
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static GstElementDetails gst_a52dec_details = {
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"ATSC A/52 audio decoder",
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"Filter/Decoder/Audio",
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"Decodes ATSC A/52 encoded audio streams",
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VERSION,
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"David I. Lehn <dlehn@users.sourceforge.net>",
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"(C) 2001",
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};
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/* A52Dec 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_DRC
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};
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/*
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* "audio/a52" and "audio/ac3" are the same format. The name
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* "ac3" is now deprecated and should not be used in new code.
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*/
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GST_PADTEMPLATE_FACTORY (sink_factory,
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"sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"a52dec_sink",
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"audio/a52",
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NULL
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),
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GST_CAPS_NEW (
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"ac3dec_sink",
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"audio/ac3",
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NULL
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)
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);
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GST_PADTEMPLATE_FACTORY (src_factory,
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"src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"a52dec_src",
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"audio/raw",
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0),
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"endianness", GST_PROPS_INT (G_BYTE_ORDER),
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"signed", GST_PROPS_BOOLEAN (TRUE),
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"width", GST_PROPS_INT (16),
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"depth", GST_PROPS_INT (16),
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"rate", GST_PROPS_INT_RANGE (4000, 48000),
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"channels", GST_PROPS_INT_RANGE (1, 6)
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)
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);
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static void gst_a52dec_class_init (GstA52DecClass * klass);
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static void gst_a52dec_init (GstA52Dec * a52dec);
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static void gst_a52dec_loop (GstElement * element);
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static GstElementStateReturn
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gst_a52dec_change_state (GstElement * element);
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static void gst_a52dec_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_a52dec_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstElementClass *parent_class = NULL;
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/* static guint gst_a52dec_signals[LAST_SIGNAL] = { 0 }; */
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GType
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gst_a52dec_get_type (void)
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{
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static GType a52dec_type = 0;
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if (!a52dec_type) {
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static const GTypeInfo a52dec_info = {
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sizeof (GstA52DecClass), NULL, NULL, (GClassInitFunc) gst_a52dec_class_init,
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NULL,
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NULL,
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sizeof (GstA52Dec),
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0,
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(GInstanceInitFunc) gst_a52dec_init,
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};
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a52dec_type = g_type_register_static (GST_TYPE_ELEMENT, "GstA52Dec", &a52dec_info, 0);
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}
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return a52dec_type;
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}
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static void
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gst_a52dec_class_init (GstA52DecClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DRC,
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g_param_spec_boolean ("drc", "Dynamic Range Compression",
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"Use Dynamic Range Compression", FALSE,
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G_PARAM_READWRITE));
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gobject_class->set_property = gst_a52dec_set_property;
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gobject_class->get_property = gst_a52dec_get_property;
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gstelement_class->change_state = gst_a52dec_change_state;
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}
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static void
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gst_a52dec_init (GstA52Dec * a52dec)
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{
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/* create the sink and src pads */
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a52dec->sinkpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (sink_factory), "sink");
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gst_element_add_pad (GST_ELEMENT (a52dec), a52dec->sinkpad);
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gst_pad_set_caps (a52dec->sinkpad, gst_pad_get_padtemplate_caps (a52dec->sinkpad));
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gst_element_set_loop_function ((GstElement *) a52dec, gst_a52dec_loop);
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a52dec->srcpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (src_factory), "src");
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gst_element_add_pad (GST_ELEMENT (a52dec), a52dec->srcpad);
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a52dec->dynamic_range_compression = FALSE;
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}
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/* BEGIN modified a52dec conversion code */
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static inline int16_t
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convert (int32_t i)
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{
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if (i > 0x43c07fff)
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return 32767;
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else if (i < 0x43bf8000)
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return -32768;
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else
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return i - 0x43c00000;
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}
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static inline void
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float_to_int (float *_f, int16_t * s16, int flags)
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{
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int i;
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int32_t *f = (int32_t *) _f;
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switch (flags) {
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case A52_MONO:
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for (i = 0; i < 256; i++) {
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s16[5 * i] = s16[5 * i + 1] = s16[5 * i + 2] = s16[5 * i + 3] = 0;
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s16[5 * i + 4] = convert (f[i]);
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}
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break;
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case A52_CHANNEL:
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case A52_STEREO:
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case A52_DOLBY:
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for (i = 0; i < 256; i++) {
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s16[2 * i] = convert (f[i]);
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s16[2 * i + 1] = convert (f[i + 256]);
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}
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break;
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case A52_3F:
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for (i = 0; i < 256; i++) {
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s16[5 * i] = convert (f[i]);
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s16[5 * i + 1] = convert (f[i + 512]);
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s16[5 * i + 2] = s16[5 * i + 3] = 0;
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s16[5 * i + 4] = convert (f[i + 256]);
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}
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break;
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case A52_2F2R:
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for (i = 0; i < 256; i++) {
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s16[4 * i] = convert (f[i]);
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s16[4 * i + 1] = convert (f[i + 256]);
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s16[4 * i + 2] = convert (f[i + 512]);
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s16[4 * i + 3] = convert (f[i + 768]);
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}
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break;
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case A52_3F2R:
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for (i = 0; i < 256; i++) {
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s16[5 * i] = convert (f[i]);
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s16[5 * i + 1] = convert (f[i + 512]);
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s16[5 * i + 2] = convert (f[i + 768]);
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s16[5 * i + 3] = convert (f[i + 1024]);
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s16[5 * i + 4] = convert (f[i + 256]);
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}
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break;
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case A52_MONO | A52_LFE:
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for (i = 0; i < 256; i++) {
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s16[6 * i] = s16[6 * i + 1] = s16[6 * i + 2] = s16[6 * i + 3] = 0;
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s16[6 * i + 4] = convert (f[i + 256]);
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s16[6 * i + 5] = convert (f[i]);
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}
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break;
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case A52_CHANNEL | A52_LFE:
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case A52_STEREO | A52_LFE:
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case A52_DOLBY | A52_LFE:
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for (i = 0; i < 256; i++) {
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s16[6 * i] = convert (f[i + 256]);
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s16[6 * i + 1] = convert (f[i + 512]);
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s16[6 * i + 2] = s16[6 * i + 3] = s16[6 * i + 4] = 0;
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s16[6 * i + 5] = convert (f[i]);
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}
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break;
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case A52_3F | A52_LFE:
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for (i = 0; i < 256; i++) {
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s16[6 * i] = convert (f[i + 256]);
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s16[6 * i + 1] = convert (f[i + 768]);
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s16[6 * i + 2] = s16[6 * i + 3] = 0;
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s16[6 * i + 4] = convert (f[i + 512]);
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s16[6 * i + 5] = convert (f[i]);
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}
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break;
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case A52_2F2R | A52_LFE:
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for (i = 0; i < 256; i++) {
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s16[6 * i] = convert (f[i + 256]);
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s16[6 * i + 1] = convert (f[i + 512]);
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s16[6 * i + 2] = convert (f[i + 768]);
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s16[6 * i + 3] = convert (f[i + 1024]);
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s16[6 * i + 4] = 0;
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s16[6 * i + 5] = convert (f[i]);
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}
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break;
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case A52_3F2R | A52_LFE:
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for (i = 0; i < 256; i++) {
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s16[6 * i] = convert (f[i + 256]);
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s16[6 * i + 1] = convert (f[i + 768]);
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s16[6 * i + 2] = convert (f[i + 1024]);
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s16[6 * i + 3] = convert (f[i + 1280]);
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s16[6 * i + 4] = convert (f[i + 512]);
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s16[6 * i + 5] = convert (f[i]);
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}
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break;
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}
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}
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static int
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gst_a52dec_channels (int flags)
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{
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int chans = 0;
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if (flags & A52_LFE) {
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chans += 1;
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}
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flags &= A52_CHANNEL_MASK;
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switch (flags) {
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case A52_3F2R:
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chans += 5;
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break;
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case A52_2F2R:
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case A52_3F1R:
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chans += 4;
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break;
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case A52_2F1R:
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case A52_3F:
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chans += 3;
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case A52_CHANNEL:
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case A52_STEREO:
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case A52_DOLBY:
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chans += 2;
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break;
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default:
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/* error */
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fprintf (stderr, "a52dec invalid flags?");
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return 0;
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}
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return chans;
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}
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static int
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gst_a52dec_push (GstPad * srcpad, int flags, sample_t * _samples, gint64 timestamp)
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{
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GstBuffer *buf;
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int chans;
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#ifdef LIBA52_DOUBLE
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float samples[256 * 6];
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int i;
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for (i = 0; i < 256 * 6; i++)
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samples[i] = _samples[i];
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#else
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float *samples = _samples;
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#endif
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flags &= A52_CHANNEL_MASK | A52_LFE;
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chans = gst_a52dec_channels (flags);
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if (!chans) {
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return 1;
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}
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buf = gst_buffer_new ();
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GST_BUFFER_SIZE (buf) = sizeof (int16_t) * 256 * chans;
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GST_BUFFER_DATA (buf) = g_malloc (GST_BUFFER_SIZE (buf));
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GST_BUFFER_TIMESTAMP (buf) = timestamp;
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float_to_int (samples, (int16_t *) GST_BUFFER_DATA (buf), flags);
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gst_pad_push (srcpad, buf);
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return 0;
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}
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/* END modified a52dec conversion code */
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static void
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gst_a52dec_reneg (GstPad * pad, int channels, int rate)
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{
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GST_INFO (GST_CAT_PLUGIN_INFO, "a52dec: reneg channels:%d rate:%d\n", channels, rate);
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gst_pad_set_caps (pad, gst_caps_new ("a52dec_src_caps",
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"audio/raw",
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gst_props_new ("format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0),
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"endianness", GST_PROPS_INT (G_BYTE_ORDER),
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"signed", GST_PROPS_BOOLEAN (TRUE),
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"width", GST_PROPS_INT (16),
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"depth", GST_PROPS_INT (16),
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"channels", GST_PROPS_INT (channels),
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"rate", GST_PROPS_INT (rate), NULL)
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));
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}
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static void
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gst_a52dec_handle_event (GstA52Dec *a52dec)
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{
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guint32 remaining;
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GstEvent *event;
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gst_bytestream_get_status (a52dec->bs, &remaining, &event);
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_DISCONTINUOUS:
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gst_bytestream_flush_fast (a52dec->bs, remaining);
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default:
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gst_pad_event_default (a52dec->sinkpad, event);
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break;
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}
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}
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static void
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gst_a52dec_loop (GstElement *element)
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{
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GstA52Dec *a52dec;
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guint8 *data;
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int i, length, flags, sample_rate, bit_rate;
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int stream_channels;
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GstBuffer *buf;
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|
||||
a52dec = GST_A52DEC (element);
|
||||
|
||||
/* find and read header */
|
||||
while (1) {
|
||||
data = gst_bytestream_peek_bytes (a52dec->bs, 7);
|
||||
if (!data) {
|
||||
gst_a52dec_handle_event (a52dec);
|
||||
return;
|
||||
}
|
||||
length = a52_syncinfo (data, &flags, &sample_rate, &bit_rate);
|
||||
if (length == 0) {
|
||||
/* slide window to next 7 bytesa */
|
||||
gst_bytestream_flush_fast (a52dec->bs, 1);
|
||||
}
|
||||
else
|
||||
break;
|
||||
|
||||
/* FIXME this can potentially be an infinite loop, we have to
|
||||
* insert a yield operations here */
|
||||
}
|
||||
|
||||
/* check if params have changed since last call */
|
||||
stream_channels = flags & A52_CHANNEL_MASK;
|
||||
|
||||
if ((sample_rate != a52dec->sample_rate) ||
|
||||
(bit_rate != a52dec->bit_rate) ||
|
||||
(stream_channels != a52dec->stream_channels))
|
||||
{
|
||||
a52dec->sample_rate = sample_rate;
|
||||
a52dec->bit_rate = bit_rate;
|
||||
a52dec->stream_channels = stream_channels;
|
||||
/* FIXME force stereo for now */
|
||||
a52dec->req_channels = A52_STEREO;
|
||||
gst_a52dec_reneg (a52dec->srcpad,
|
||||
gst_a52dec_channels (a52dec->req_channels), a52dec->sample_rate);
|
||||
}
|
||||
|
||||
/* read the header + rest of frame */
|
||||
buf = gst_bytestream_read (a52dec->bs, length);
|
||||
if (!buf) {
|
||||
gst_a52dec_handle_event (a52dec);
|
||||
return;
|
||||
}
|
||||
data = GST_BUFFER_DATA (buf);
|
||||
|
||||
/* process */
|
||||
flags = a52dec->req_channels | A52_ADJUST_LEVEL;
|
||||
a52dec->level = 1;
|
||||
|
||||
memset (a52dec->state, 0, sizeof (a52_state_t));
|
||||
|
||||
if (a52_frame (a52dec->state, data, &flags, &a52dec->level, a52dec->bias)) {
|
||||
fprintf (stderr, "a52dec a52_frame error\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
if ((flags & A52_CHANNEL_MASK) != a52dec->req_channels) {
|
||||
gst_a52dec_reneg (a52dec->srcpad, gst_a52dec_channels (flags), a52dec->sample_rate);
|
||||
}
|
||||
|
||||
if (a52dec->dynamic_range_compression == FALSE) {
|
||||
a52_dynrng (a52dec->state, NULL, NULL);
|
||||
}
|
||||
|
||||
for (i = 0; i < 6; i++) {
|
||||
if (a52_block (a52dec->state, a52dec->samples)) {
|
||||
gst_element_info (element, "a52dec a52_block error %d\n", i);
|
||||
continue;
|
||||
}
|
||||
/* push on */
|
||||
gst_a52dec_push (a52dec->srcpad, a52dec->req_channels, a52dec->samples, GST_BUFFER_TIMESTAMP (buf));
|
||||
}
|
||||
|
||||
end:
|
||||
/* FIXME, this is a possible leak */
|
||||
gst_buffer_unref (buf);
|
||||
}
|
||||
|
||||
static GstElementStateReturn
|
||||
gst_a52dec_change_state (GstElement * element)
|
||||
{
|
||||
GstA52Dec *a52dec = GST_A52DEC (element);
|
||||
|
||||
switch (GST_STATE_TRANSITION (element)) {
|
||||
case GST_STATE_NULL_TO_READY:
|
||||
break;
|
||||
case GST_STATE_READY_TO_PAUSED:
|
||||
a52dec->bs = gst_bytestream_new (a52dec->sinkpad);
|
||||
a52dec->samples = a52_init (0); /* mm_accel()); */
|
||||
/* FIXME this is 0ed only untill a liba52 bug is fixed */
|
||||
a52dec->state = g_new (a52_state_t, 1);
|
||||
a52dec->bit_rate = -1;
|
||||
a52dec->sample_rate = -1;
|
||||
a52dec->stream_channels = -1;
|
||||
a52dec->req_channels = -1;
|
||||
a52dec->level = 1;
|
||||
a52dec->bias = 384;
|
||||
break;
|
||||
case GST_STATE_PAUSED_TO_PLAYING:
|
||||
break;
|
||||
case GST_STATE_PLAYING_TO_PAUSED:
|
||||
break;
|
||||
case GST_STATE_PAUSED_TO_READY:
|
||||
gst_bytestream_destroy (a52dec->bs);
|
||||
a52dec->bs = NULL;
|
||||
g_free (a52dec->state);
|
||||
g_free (a52dec->samples);
|
||||
break;
|
||||
case GST_STATE_READY_TO_NULL:
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
|
||||
}
|
||||
|
||||
GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
||||
|
||||
return GST_STATE_SUCCESS;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_a52dec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstA52Dec *src;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_A52DEC (object));
|
||||
src = GST_A52DEC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_DRC:
|
||||
src->dynamic_range_compression = g_value_get_boolean (value);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_a52dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstA52Dec *src;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_A52DEC (object));
|
||||
src = GST_A52DEC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_DRC:
|
||||
g_value_set_int (value, src->dynamic_range_compression);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static gboolean
|
||||
plugin_init (GModule * module, GstPlugin * plugin)
|
||||
{
|
||||
GstElementFactory *factory;
|
||||
|
||||
/* this filter needs the bytestream package */
|
||||
if (!gst_library_load ("gstbytestream")) {
|
||||
gst_info ("a52dec:: could not load support library: 'gstbytestream'\n");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* create an elementfactory for the a52dec element */
|
||||
factory = gst_elementfactory_new ("a52dec", GST_TYPE_A52DEC, &gst_a52dec_details);
|
||||
g_return_val_if_fail (factory != NULL, FALSE);
|
||||
|
||||
gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_factory));
|
||||
gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (sink_factory));
|
||||
|
||||
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
GstPluginDesc plugin_desc = {
|
||||
GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"a52dec",
|
||||
plugin_init
|
||||
};
|
||||
74
ext/a52dec/gsta52dec.h
Normal file
74
ext/a52dec/gsta52dec.h
Normal file
|
|
@ -0,0 +1,74 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <2001> David I. Lehn <dlehn@users.sourceforge.net>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef __GST_A52DEC_H__
|
||||
#define __GST_A52DEC_H__
|
||||
|
||||
|
||||
#include <config.h>
|
||||
#include <gst/gst.h>
|
||||
#include <gst/bytestream/bytestream.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
|
||||
#define GST_TYPE_A52DEC \
|
||||
(gst_a52dec_get_type())
|
||||
#define GST_A52DEC(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_A52DEC,GstA52Dec))
|
||||
#define GST_A52DEC_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_A52DEC,GstA52Dec))
|
||||
#define GST_IS_A52DEC(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_A52DEC))
|
||||
#define GST_IS_A52DEC_CLASS(obj) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_A52DEC))
|
||||
|
||||
typedef struct _GstA52Dec GstA52Dec;
|
||||
typedef struct _GstA52DecClass GstA52DecClass;
|
||||
|
||||
struct _GstA52Dec {
|
||||
GstElement element;
|
||||
|
||||
/* pads */
|
||||
GstPad *sinkpad,*srcpad;
|
||||
int bit_rate;
|
||||
int sample_rate;
|
||||
int stream_channels;
|
||||
int req_channels;
|
||||
sample_t level;
|
||||
sample_t bias;
|
||||
gboolean dynamic_range_compression;
|
||||
sample_t *samples;
|
||||
a52_state_t *state;
|
||||
GstByteStream *bs;
|
||||
};
|
||||
|
||||
struct _GstA52DecClass {
|
||||
GstElementClass parent_class;
|
||||
};
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
|
||||
#endif /* __GST_A52DEC_H__ */
|
||||
Loading…
Reference in a new issue