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Original commit message from CVS: * ext/amrwb/gstamrwbdec.c: (gst_amrwbdec_class_init): * ext/amrwb/gstamrwbenc.c: (gst_amrwbenc_class_init): * ext/amrwb/gstamrwbparse.c: (gst_amrwbparse_class_init): * ext/arts/gst_arts.c: (gst_arts_class_init): * ext/artsd/gstartsdsink.c: (gst_artsdsink_class_init): * ext/audiofile/gstafsink.c: (gst_afsink_class_init): * ext/audiofile/gstafsrc.c: (gst_afsrc_class_init): * ext/audioresample/gstaudioresample.c: * ext/cdaudio/gstcdaudio.c: (gst_cdaudio_class_init): * ext/directfb/dfbvideosink.c: (gst_dfbvideosink_class_init): * ext/divx/gstdivxdec.c: (gst_divxdec_class_init): * ext/hermes/gsthermescolorspace.c: (gst_hermes_colorspace_class_init): * ext/ivorbis/vorbisfile.c: (gst_ivorbisfile_class_init): * ext/jack/gstjack.c: (gst_jack_class_init): * ext/jack/gstjackbin.c: (gst_jack_bin_class_init): * ext/lcs/gstcolorspace.c: (gst_colorspace_class_init): * ext/libfame/gstlibfame.c: (gst_fameenc_class_init): * ext/musicbrainz/gsttrm.c: (gst_musicbrainz_class_init): * ext/nas/nassink.c: (gst_nassink_class_init): * ext/shout/gstshout.c: (gst_icecastsend_class_init): * ext/snapshot/gstsnapshot.c: (gst_snapshot_class_init): * ext/sndfile/gstsf.c: (gst_sf_class_init): * ext/swfdec/gstswfdec.c: (gst_swfdecbuffer_class_init), (gst_swfdec_class_init): * ext/tarkin/gsttarkindec.c: (gst_tarkindec_class_init): * ext/tarkin/gsttarkinenc.c: (gst_tarkinenc_class_init): * gst/cdxaparse/gstcdxastrip.c: (gst_cdxastrip_class_init): * gst/chart/gstchart.c: (gst_chart_class_init): * gst/colorspace/gstcolorspace.c: (gst_colorspace_class_init): * gst/deinterlace/gstdeinterlace.c: (gst_deinterlace_class_init): * gst/festival/gstfestival.c: (gst_festival_class_init): * gst/filter/gstbpwsinc.c: (gst_bpwsinc_class_init): * gst/filter/gstiir.c: (gst_iir_class_init): * gst/filter/gstlpwsinc.c: (gst_lpwsinc_class_init): * gst/librfb/gstrfbsrc.c: (gst_rfbsrc_class_init): * gst/mixmatrix/mixmatrix.c: (gst_mixmatrix_class_init): * gst/mpeg1sys/gstmpeg1systemencode.c: (gst_system_encode_class_init): * gst/mpeg1videoparse/gstmp1videoparse.c: (gst_mp1videoparse_class_init): * gst/mpeg2sub/gstmpeg2subt.c: (gst_mpeg2subt_class_init): * gst/mpegaudioparse/gstmpegaudioparse.c: (gst_mp3parse_class_init): * gst/overlay/gstoverlay.c: (gst_overlay_class_init): * gst/passthrough/gstpassthrough.c: (passthrough_class_init): * gst/playondemand/gstplayondemand.c: (play_on_demand_class_init): * gst/rtjpeg/gstrtjpegdec.c: (gst_rtjpegdec_class_init): * gst/rtjpeg/gstrtjpegenc.c: (gst_rtjpegenc_class_init): * gst/smooth/gstsmooth.c: (gst_smooth_class_init): * gst/smoothwave/gstsmoothwave.c: (gst_smoothwave_class_init): * gst/spectrum/gstspectrum.c: (gst_spectrum_class_init): * gst/stereo/gststereo.c: (gst_stereo_class_init): * gst/switch/gstswitch.c: (gst_switch_class_init): * gst/tta/gstttadec.c: (gst_tta_dec_class_init): * gst/tta/gstttaparse.c: (gst_tta_parse_class_init): * gst/vbidec/gstvbidec.c: (gst_vbidec_class_init): * gst/videocrop/gstvideocrop.c: (gst_video_crop_class_init): * gst/virtualdub/gstxsharpen.c: (gst_xsharpen_class_init): * gst/y4m/gsty4mencode.c: (gst_y4mencode_class_init): * sys/cdrom/gstcdplayer.c: (cdplayer_class_init): * sys/directsound/gstdirectsoundsink.c: (gst_directsoundsink_class_init): * sys/dxr3/dxr3audiosink.c: (dxr3audiosink_class_init): * sys/dxr3/dxr3spusink.c: (dxr3spusink_class_init): * sys/dxr3/dxr3videosink.c: (dxr3videosink_class_init): * sys/qcam/gstqcamsrc.c: (gst_qcamsrc_class_init): * sys/v4l2/gstv4l2colorbalance.c: (gst_v4l2_color_balance_channel_class_init): * sys/v4l2/gstv4l2tuner.c: (gst_v4l2_tuner_channel_class_init), (gst_v4l2_tuner_norm_class_init): * sys/ximagesrc/ximagesrc.c: (gst_ximagesrc_class_init): Fix #337365 (g_type_class_ref <-> g_type_class_peek_parent)
744 lines
20 KiB
C
744 lines
20 KiB
C
/* GStreamer
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* Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net>
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*
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* dxr3audiosink.c: Audio sink for em8300 based DVD cards.
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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 <errno.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <linux/soundcard.h>
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#include <linux/em8300.h>
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#include <gst/gst-i18n-plugin.h>
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#include <gst/gst.h>
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#include "dxr3audiosink.h"
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#include "dxr3marshal.h"
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#include "dxr3common.h"
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/* Our only supported AC3 byte rate. */
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#define AC3_BYTE_RATE 48000
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/* Determines the amount of time to play the given number of bytes of
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the original AC3 stream. The result is expressed as MPEG2. */
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#define TIME_FOR_BYTES(bytes) (((bytes) * 90) / 48)
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/* ElementFactory information. */
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static GstElementDetails dxr3audiosink_details = {
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"dxr3/Hollywood+ mpeg decoder board audio plugin",
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"Audio/Sink",
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"Feeds audio to Sigma Designs em8300 based boards",
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"Martin Soto <martinsoto@users.sourceforge.net>"
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};
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/* Dxr3AudioSink signals and args */
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enum
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{
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SIGNAL_FLUSHED,
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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_DIGITAL_PCM
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};
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static GstStaticPadTemplate dxr3audiosink_pcm_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("pcm_sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw-int, "
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"endianness = (int) 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 = (int) { 32000, 44100, 48000, 66000 }, " "channels = (int) 2")
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);
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static GstStaticPadTemplate dxr3audiosink_ac3_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("ac3_sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-ac3"
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/* no parameters needed, we don't need a parsed stream */
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)
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);
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static void dxr3audiosink_class_init (Dxr3AudioSinkClass * klass);
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static void dxr3audiosink_base_init (Dxr3AudioSinkClass * klass);
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static void dxr3audiosink_init (Dxr3AudioSink * sink);
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static void dxr3audiosink_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void dxr3audiosink_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static gboolean dxr3audiosink_open (Dxr3AudioSink * sink);
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static gboolean dxr3audiosink_set_mode_pcm (Dxr3AudioSink * sink);
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static gboolean dxr3audiosink_set_mode_ac3 (Dxr3AudioSink * sink);
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static void dxr3audiosink_close (Dxr3AudioSink * sink);
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static void dxr3audiosink_set_clock (GstElement * element, GstClock * clock);
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static GstPadLinkReturn dxr3audiosink_pcm_sinklink (GstPad * pad,
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const GstCaps * caps);
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static void dxr3audiosink_set_scr (Dxr3AudioSink * sink, guint32 scr);
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static gboolean dxr3audiosink_handle_event (GstPad * pad, GstEvent * event);
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static void dxr3audiosink_chain_pcm (GstPad * pad, GstData * buf);
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static void dxr3audiosink_chain_ac3 (GstPad * pad, GstData * buf);
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/* static void dxr3audiosink_wait (Dxr3AudioSink *sink, */
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/* GstClockTime time); */
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/* static int dxr3audiosink_mvcommand (Dxr3AudioSink *sink, */
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/* int command); */
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static GstStateChangeReturn dxr3audiosink_change_state (GstElement * element,
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GstStateChange transition);
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static void dxr3audiosink_flushed (Dxr3AudioSink * sink);
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static GstElementClass *parent_class = NULL;
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static guint dxr3audiosink_signals[LAST_SIGNAL] = { 0 };
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extern GType
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dxr3audiosink_get_type (void)
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{
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static GType dxr3audiosink_type = 0;
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if (!dxr3audiosink_type) {
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static const GTypeInfo dxr3audiosink_info = {
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sizeof (Dxr3AudioSinkClass),
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(GBaseInitFunc) dxr3audiosink_base_init,
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NULL,
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(GClassInitFunc) dxr3audiosink_class_init,
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NULL,
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NULL,
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sizeof (Dxr3AudioSink),
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0,
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(GInstanceInitFunc) dxr3audiosink_init,
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};
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dxr3audiosink_type = g_type_register_static (GST_TYPE_ELEMENT,
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"Dxr3AudioSink", &dxr3audiosink_info, 0);
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}
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return dxr3audiosink_type;
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}
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static void
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dxr3audiosink_base_init (Dxr3AudioSinkClass * klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&dxr3audiosink_pcm_sink_factory));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&dxr3audiosink_ac3_sink_factory));
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gst_element_class_set_details (element_class, &dxr3audiosink_details);
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}
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static void
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dxr3audiosink_class_init (Dxr3AudioSinkClass * 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_peek_parent (klass);
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dxr3audiosink_signals[SIGNAL_FLUSHED] =
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g_signal_new ("flushed", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (Dxr3AudioSinkClass, flushed),
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NULL, NULL, dxr3_marshal_VOID__VOID, G_TYPE_NONE, 0);
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klass->flushed = dxr3audiosink_flushed;
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DIGITAL_PCM,
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g_param_spec_boolean ("digital-pcm", "Digital PCM",
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"Use the digital output for PCM sound", FALSE, G_PARAM_READWRITE));
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gobject_class->set_property = dxr3audiosink_set_property;
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gobject_class->get_property = dxr3audiosink_get_property;
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gstelement_class->change_state = dxr3audiosink_change_state;
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gstelement_class->set_clock = dxr3audiosink_set_clock;
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}
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static void
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dxr3audiosink_init (Dxr3AudioSink * sink)
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{
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GstPadTemplate *temp;
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/* Create the PCM pad. */
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temp = gst_static_pad_template_get (&dxr3audiosink_pcm_sink_factory);
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sink->pcm_sinkpad = gst_pad_new_from_template (temp, "pcm_sink");
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gst_pad_set_chain_function (sink->pcm_sinkpad, dxr3audiosink_chain_pcm);
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gst_pad_set_link_function (sink->pcm_sinkpad, dxr3audiosink_pcm_sinklink);
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gst_element_add_pad (GST_ELEMENT (sink), sink->pcm_sinkpad);
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/* Create the AC3 pad. */
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temp = gst_static_pad_template_get (&dxr3audiosink_ac3_sink_factory);
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sink->ac3_sinkpad = gst_pad_new_from_template (temp, "ac3_sink");
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gst_pad_set_chain_function (sink->ac3_sinkpad, dxr3audiosink_chain_ac3);
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gst_element_add_pad (GST_ELEMENT (sink), sink->ac3_sinkpad);
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GST_OBJECT_FLAG_SET (GST_ELEMENT (sink), GST_ELEMENT_EVENT_AWARE);
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sink->card_number = 0;
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sink->audio_filename = NULL;
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sink->audio_fd = -1;
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sink->control_filename = NULL;
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sink->control_fd = -1;
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/* Since we don't know any better, we set the initial scr to 0. */
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sink->scr = 0;
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/* Initially don't use digital output. */
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sink->digital_pcm = FALSE;
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/* Initially there's no padder. */
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sink->padder = NULL;
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sink->mode = DXR3AUDIOSINK_MODE_NONE;
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}
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static void
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dxr3audiosink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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Dxr3AudioSink *sink;
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sink = DXR3AUDIOSINK (object);
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switch (prop_id) {
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case ARG_DIGITAL_PCM:
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sink->digital_pcm = g_value_get_boolean (value);
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/* Refresh the setup of the device. */
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if (sink->mode == DXR3AUDIOSINK_MODE_PCM) {
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dxr3audiosink_set_mode_pcm (sink);
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}
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g_object_notify (G_OBJECT (sink), "digital-pcm");
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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dxr3audiosink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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Dxr3AudioSink *sink;
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g_return_if_fail (GST_IS_DXR3AUDIOSINK (object));
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sink = DXR3AUDIOSINK (object);
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switch (prop_id) {
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case ARG_DIGITAL_PCM:
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g_value_set_boolean (value, sink->digital_pcm);
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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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dxr3audiosink_open (Dxr3AudioSink * sink)
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{
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g_return_val_if_fail (!GST_OBJECT_FLAG_IS_SET (sink, DXR3AUDIOSINK_OPEN),
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FALSE);
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/* Compute the name of the audio device file. */
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sink->audio_filename = g_strdup_printf ("/dev/em8300_ma-%d",
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sink->card_number);
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sink->audio_fd = open (sink->audio_filename, O_WRONLY);
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if (sink->audio_fd < 0) {
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GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE,
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(_("Could not open audio device \"%s\" for writing."),
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sink->audio_filename), GST_ERROR_SYSTEM);
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return FALSE;
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}
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/* Open the control device. */
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sink->control_filename = g_strdup_printf ("/dev/em8300-%d",
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sink->card_number);
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sink->control_fd = open (sink->control_filename, O_WRONLY);
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if (sink->control_fd < 0) {
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GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE,
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(_("Could not open control device \"%s\" for writing."),
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sink->control_filename), GST_ERROR_SYSTEM);
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return FALSE;
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}
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GST_OBJECT_FLAG_SET (sink, DXR3AUDIOSINK_OPEN);
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dxr3audiosink_set_mode_pcm (sink);
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return TRUE;
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}
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/**
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* dxr3audiosink_set_mode:
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* @sink: The sink element to operate on.
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*
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* Set the operation mode of the element to PCM.
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*/
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static gboolean
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dxr3audiosink_set_mode_pcm (Dxr3AudioSink * sink)
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{
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int tmp, oss_mode, audiomode;
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if (sink->audio_fd == -1 || sink->control_fd == -1) {
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return FALSE;
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}
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/* Set the audio device mode. */
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oss_mode = (G_BYTE_ORDER == G_BIG_ENDIAN ? AFMT_S16_BE : AFMT_S16_LE);
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tmp = oss_mode;
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if (ioctl (sink->audio_fd, SNDCTL_DSP_SETFMT, &tmp) < 0 || tmp != oss_mode) {
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GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS,
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(_("Could not configure audio device \"%s\"."), sink->audio_filename),
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GST_ERROR_SYSTEM);
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return FALSE;
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}
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/* Set the card's general audio output mode. */
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audiomode = sink->digital_pcm ?
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EM8300_AUDIOMODE_DIGITALPCM : EM8300_AUDIOMODE_ANALOG;
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ioctl (sink->control_fd, EM8300_IOCTL_SET_AUDIOMODE, &audiomode);
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/* Set the sampling rate. */
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tmp = sink->rate;
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if (ioctl (sink->audio_fd, SNDCTL_DSP_SPEED, &tmp) < 0) {
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GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS,
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(_("Could not set audio device \"%s\" to %d Hz."), sink->audio_filename,
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sink->rate), GST_ERROR_SYSTEM);
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return FALSE;
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}
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/* Get rid of the padder, if any. */
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if (sink->padder != NULL) {
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g_free (sink->padder);
|
|
sink->padder = NULL;
|
|
}
|
|
|
|
sink->mode = DXR3AUDIOSINK_MODE_PCM;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**
|
|
* dxr3audiosink_set_mode:
|
|
* @sink: The sink element to operate on
|
|
*
|
|
* Set the operation mode of the element to AC3.
|
|
*/
|
|
static gboolean
|
|
dxr3audiosink_set_mode_ac3 (Dxr3AudioSink * sink)
|
|
{
|
|
int tmp, audiomode;
|
|
|
|
if (sink->audio_fd == -1 || sink->control_fd == -1) {
|
|
return FALSE;
|
|
}
|
|
|
|
/* Set the sampling rate. */
|
|
tmp = AC3_BYTE_RATE;
|
|
if (ioctl (sink->audio_fd, SNDCTL_DSP_SPEED, &tmp) < 0 ||
|
|
tmp != AC3_BYTE_RATE) {
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS,
|
|
(_("Could not set audio device \"%s\" to %d Hz."), sink->audio_filename,
|
|
AC3_BYTE_RATE), GST_ERROR_SYSTEM);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Set the card's general audio output mode to AC3. */
|
|
audiomode = EM8300_AUDIOMODE_DIGITALAC3;
|
|
ioctl (sink->control_fd, EM8300_IOCTL_SET_AUDIOMODE, &audiomode);
|
|
|
|
/* Create a padder if necessary, */
|
|
if (sink->padder == NULL) {
|
|
sink->padder = g_malloc (sizeof (ac3_padder));
|
|
ac3p_init (sink->padder);
|
|
}
|
|
|
|
sink->mode = DXR3AUDIOSINK_MODE_AC3;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static void
|
|
dxr3audiosink_close (Dxr3AudioSink * sink)
|
|
{
|
|
g_return_if_fail (GST_OBJECT_FLAG_IS_SET (sink, DXR3AUDIOSINK_OPEN));
|
|
|
|
if (close (sink->audio_fd) != 0) {
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, CLOSE,
|
|
(_("Could not close audio device \"%s\"."), sink->audio_filename),
|
|
GST_ERROR_SYSTEM);
|
|
return;
|
|
}
|
|
|
|
if (close (sink->control_fd) != 0) {
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, CLOSE,
|
|
(_("Could not close control device \"%s\"."), sink->audio_filename),
|
|
GST_ERROR_SYSTEM);
|
|
return;
|
|
}
|
|
|
|
GST_OBJECT_FLAG_UNSET (sink, DXR3AUDIOSINK_OPEN);
|
|
|
|
g_free (sink->audio_filename);
|
|
sink->audio_filename = NULL;
|
|
|
|
g_free (sink->control_filename);
|
|
sink->control_filename = NULL;
|
|
|
|
/* Get rid of the padder, if any. */
|
|
if (sink->padder != NULL) {
|
|
g_free (sink->padder);
|
|
sink->padder = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
dxr3audiosink_set_clock (GstElement * element, GstClock * clock)
|
|
{
|
|
Dxr3AudioSink *src = DXR3AUDIOSINK (element);
|
|
|
|
src->clock = clock;
|
|
}
|
|
|
|
|
|
static GstPadLinkReturn
|
|
dxr3audiosink_pcm_sinklink (GstPad * pad, const GstCaps * caps)
|
|
{
|
|
Dxr3AudioSink *sink = DXR3AUDIOSINK (gst_pad_get_parent (pad));
|
|
GstStructure *structure = gst_caps_get_structure (caps, 0);
|
|
gint rate;
|
|
|
|
if (!gst_caps_is_fixed (caps)) {
|
|
return GST_PAD_LINK_DELAYED;
|
|
}
|
|
|
|
gst_structure_get_int (structure, "rate", &rate);
|
|
sink->rate = rate;
|
|
|
|
return GST_PAD_LINK_OK;
|
|
}
|
|
|
|
|
|
static void
|
|
dxr3audiosink_set_scr (Dxr3AudioSink * sink, guint32 scr)
|
|
{
|
|
guint32 zero = 0;
|
|
|
|
/* fprintf (stderr, "====== Adjusting SCR\n"); */
|
|
ioctl (sink->control_fd, EM8300_IOCTL_SCR_SET, &zero);
|
|
ioctl (sink->control_fd, EM8300_IOCTL_SCR_SET, &scr);
|
|
}
|
|
|
|
|
|
static gboolean
|
|
dxr3audiosink_handle_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstEventType type;
|
|
Dxr3AudioSink *sink = DXR3AUDIOSINK (gst_pad_get_parent (pad));
|
|
|
|
type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
|
|
|
|
switch (type) {
|
|
case GST_EVENT_FLUSH:
|
|
if (sink->control_fd >= 0) {
|
|
unsigned audiomode;
|
|
|
|
if (sink->mode == DXR3AUDIOSINK_MODE_AC3) {
|
|
audiomode = EM8300_AUDIOMODE_DIGITALPCM;
|
|
ioctl (sink->control_fd, EM8300_IOCTL_SET_AUDIOMODE, &audiomode);
|
|
audiomode = EM8300_AUDIOMODE_DIGITALAC3;
|
|
ioctl (sink->control_fd, EM8300_IOCTL_SET_AUDIOMODE, &audiomode);
|
|
}
|
|
|
|
/* Report the flush operation. */
|
|
g_signal_emit (G_OBJECT (sink),
|
|
dxr3audiosink_signals[SIGNAL_FLUSHED], 0);
|
|
}
|
|
break;
|
|
default:
|
|
gst_pad_event_default (pad, event);
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static void
|
|
dxr3audiosink_chain_pcm (GstPad * pad, GstData * _data)
|
|
{
|
|
Dxr3AudioSink *sink;
|
|
gint bytes_written = 0;
|
|
GstBuffer *buf;
|
|
|
|
g_return_if_fail (pad != NULL);
|
|
g_return_if_fail (GST_IS_PAD (pad));
|
|
g_return_if_fail (_data != NULL);
|
|
|
|
sink = DXR3AUDIOSINK (gst_pad_get_parent (pad));
|
|
|
|
if (GST_IS_EVENT (_data)) {
|
|
dxr3audiosink_handle_event (pad, GST_EVENT (_data));
|
|
return;
|
|
}
|
|
|
|
buf = GST_BUFFER (_data);
|
|
|
|
if (sink->mode != DXR3AUDIOSINK_MODE_PCM) {
|
|
/* Switch to PCM mode. */
|
|
dxr3audiosink_set_mode_pcm (sink);
|
|
}
|
|
|
|
if (GST_OBJECT_FLAG_IS_SET (sink, DXR3AUDIOSINK_OPEN)) {
|
|
if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
|
|
/* We have a new scr value. */
|
|
sink->scr = GSTTIME_TO_MPEGTIME (GST_BUFFER_TIMESTAMP (buf));
|
|
}
|
|
|
|
/* Update the system reference clock (SCR) in the card. */
|
|
{
|
|
unsigned in, out, odelay;
|
|
unsigned diff;
|
|
|
|
ioctl (sink->control_fd, EM8300_IOCTL_SCR_GET, &out);
|
|
|
|
ioctl (sink->audio_fd, SNDCTL_DSP_GETODELAY, &odelay);
|
|
|
|
in = MPEGTIME_TO_DXRTIME (sink->scr - (odelay * 90) / 192);
|
|
diff = in > out ? in - out : out - in;
|
|
if (diff > 1800) {
|
|
dxr3audiosink_set_scr (sink, in);
|
|
}
|
|
}
|
|
|
|
/* Update our SCR value. */
|
|
sink->scr += (unsigned) (GST_BUFFER_SIZE (buf) *
|
|
(90000.0 / ((float) sink->rate * 4)));
|
|
|
|
/* Write the buffer to the sound device. */
|
|
bytes_written = write (sink->audio_fd, GST_BUFFER_DATA (buf),
|
|
GST_BUFFER_SIZE (buf));
|
|
if (bytes_written < GST_BUFFER_SIZE (buf)) {
|
|
fprintf (stderr, "dxr3audiosink: Warning: %d bytes should be "
|
|
"written, only %d bytes written\n",
|
|
GST_BUFFER_SIZE (buf), bytes_written);
|
|
}
|
|
}
|
|
|
|
gst_buffer_unref (buf);
|
|
}
|
|
|
|
|
|
static void
|
|
dxr3audiosink_chain_ac3 (GstPad * pad, GstData * _data)
|
|
{
|
|
Dxr3AudioSink *sink;
|
|
gint bytes_written = 0;
|
|
GstBuffer *buf;
|
|
|
|
g_return_if_fail (pad != NULL);
|
|
g_return_if_fail (GST_IS_PAD (pad));
|
|
g_return_if_fail (_data != NULL);
|
|
|
|
sink = DXR3AUDIOSINK (gst_pad_get_parent (pad));
|
|
|
|
if (GST_IS_EVENT (_data)) {
|
|
dxr3audiosink_handle_event (pad, GST_EVENT (_data));
|
|
return;
|
|
}
|
|
|
|
buf = GST_BUFFER (_data);
|
|
|
|
if (sink->mode != DXR3AUDIOSINK_MODE_AC3) {
|
|
/* Switch to AC3 mode. */
|
|
dxr3audiosink_set_mode_ac3 (sink);
|
|
}
|
|
|
|
if (GST_OBJECT_FLAG_IS_SET (sink, DXR3AUDIOSINK_OPEN)) {
|
|
int event;
|
|
|
|
if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
|
|
/* We have a new scr value. */
|
|
|
|
/* fprintf (stderr, "------ Audio Time %.04f\n", */
|
|
/* (double) GST_BUFFER_TIMESTAMP (buf) / GST_SECOND); */
|
|
|
|
sink->scr = GSTTIME_TO_MPEGTIME (GST_BUFFER_TIMESTAMP (buf));
|
|
}
|
|
|
|
/* Push the new data into the padder. */
|
|
ac3p_push_data (sink->padder, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
|
|
|
|
/* Parse the data. */
|
|
event = ac3p_parse (sink->padder);
|
|
while (event != AC3P_EVENT_PUSH) {
|
|
switch (event) {
|
|
case AC3P_EVENT_FRAME:
|
|
/* We have a new frame: */
|
|
|
|
/* Update the system reference clock (SCR) in the card. */
|
|
{
|
|
unsigned in, out, odelay;
|
|
unsigned diff;
|
|
|
|
ioctl (sink->control_fd, EM8300_IOCTL_SCR_GET, &out);
|
|
|
|
ioctl (sink->audio_fd, SNDCTL_DSP_GETODELAY, &odelay);
|
|
/* 192000 bytes/sec */
|
|
|
|
in = MPEGTIME_TO_DXRTIME (sink->scr - (odelay * 90) / 192);
|
|
diff = in > out ? in - out : out - in;
|
|
if (diff > 1800) {
|
|
dxr3audiosink_set_scr (sink, in);
|
|
}
|
|
}
|
|
|
|
/* Update our SCR value. */
|
|
sink->scr += TIME_FOR_BYTES (ac3p_frame_size (sink->padder));
|
|
|
|
/* Write the frame to the sound device. */
|
|
bytes_written = write (sink->audio_fd, ac3p_frame (sink->padder),
|
|
AC3P_IEC_FRAME_SIZE);
|
|
|
|
if (bytes_written < AC3P_IEC_FRAME_SIZE) {
|
|
fprintf (stderr, "dxr3audiosink: Warning: %d bytes should be "
|
|
"written, only %d bytes written\n",
|
|
AC3P_IEC_FRAME_SIZE, bytes_written);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
event = ac3p_parse (sink->padder);
|
|
}
|
|
}
|
|
|
|
gst_buffer_unref (buf);
|
|
}
|
|
|
|
#if 0
|
|
/**
|
|
* dxr3audiosink_wait:
|
|
*
|
|
* Make the sink wait the specified amount of time.
|
|
*/
|
|
static void
|
|
dxr3audiosink_wait (Dxr3AudioSink * sink, GstClockTime time)
|
|
{
|
|
GstClockID id;
|
|
GstClockTimeDiff jitter;
|
|
GstClockReturn ret;
|
|
GstClockTime current_time = gst_clock_get_time (sink->clock);
|
|
|
|
id = gst_clock_new_single_shot_id (sink->clock, current_time + time);
|
|
ret = gst_clock_id_wait (id, &jitter);
|
|
gst_clock_id_free (id);
|
|
}
|
|
|
|
|
|
static int
|
|
dxr3audiosink_mvcommand (Dxr3AudioSink * sink, int command)
|
|
{
|
|
em8300_register_t regs;
|
|
|
|
regs.microcode_register = 1;
|
|
regs.reg = 0;
|
|
regs.val = command;
|
|
|
|
return ioctl (sink->control_fd, EM8300_IOCTL_WRITEREG, ®s);
|
|
}
|
|
#endif
|
|
|
|
static GstStateChangeReturn
|
|
dxr3audiosink_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
g_return_val_if_fail (GST_IS_DXR3AUDIOSINK (element),
|
|
GST_STATE_CHANGE_FAILURE);
|
|
|
|
if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
|
|
if (GST_OBJECT_FLAG_IS_SET (element, DXR3AUDIOSINK_OPEN)) {
|
|
dxr3audiosink_close (DXR3AUDIOSINK (element));
|
|
}
|
|
} else {
|
|
if (!GST_OBJECT_FLAG_IS_SET (element, DXR3AUDIOSINK_OPEN)) {
|
|
if (!dxr3audiosink_open (DXR3AUDIOSINK (element))) {
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (GST_ELEMENT_CLASS (parent_class)->change_state) {
|
|
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
}
|
|
|
|
return GST_STATE_CHANGE_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* dxr3audiosink_flushed:
|
|
*
|
|
* Default do nothing implementation for the "flushed" signal. The
|
|
* "flushed" signal will be fired right after flushing the hardware
|
|
* queues due to a received flush event
|
|
*/
|
|
static void
|
|
dxr3audiosink_flushed (Dxr3AudioSink * sink)
|
|
{
|
|
/* Do nothing. */
|
|
}
|