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Log an error message if failed to set write or read socket as non-blocking. CID 1139608 CID 1139609
1113 lines
33 KiB
C
1113 lines
33 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* <2000> Daniel Fischer <dan@f3c.com>
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* <2004> Wim Taymans <wim@fluendo.com>
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* <2006> Zaheer Abbas Merali <zaheerabbas at merali dot org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-dv1394src
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*
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* Read DV (digital video) data from firewire port.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 dv1394src ! queue ! dvdemux name=d ! queue ! dvdec ! xvimagesink d. ! queue ! alsasink
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* ]| This pipeline captures from the firewire port and displays it (might need
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* format converters for audio/video).
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <unistd.h>
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#include <sys/poll.h>
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#include <sys/socket.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <libavc1394/avc1394.h>
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#include <libavc1394/avc1394_vcr.h>
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#include <libavc1394/rom1394.h>
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#include <libraw1394/raw1394.h>
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#ifdef HAVE_LIBIEC61883
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#include <libiec61883/iec61883.h>
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#endif
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#include <gst/gst.h>
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#include "gstdv1394src.h"
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#include "gst1394probe.h"
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#include "gst1394clock.h"
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#define CONTROL_STOP 'S' /* stop the select call */
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#define CONTROL_SOCKETS(src) src->control_sock
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#define WRITE_SOCKET(src) src->control_sock[1]
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#define READ_SOCKET(src) src->control_sock[0]
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#define SEND_COMMAND(src, command) \
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G_STMT_START { \
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int G_GNUC_UNUSED _res; unsigned char c; c = command; \
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_res = write (WRITE_SOCKET(src), &c, 1); \
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} G_STMT_END
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#define READ_COMMAND(src, command, res) \
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G_STMT_START { \
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res = read(READ_SOCKET(src), &command, 1); \
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} G_STMT_END
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GST_DEBUG_CATEGORY_STATIC (dv1394src_debug);
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#define GST_CAT_DEFAULT (dv1394src_debug)
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#define PAL_FRAMESIZE 144000
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#define PAL_FRAMERATE 25
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#define NTSC_FRAMESIZE 120000
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#define NTSC_FRAMERATE 30
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enum
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{
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SIGNAL_FRAME_DROPPED,
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/* FILL ME */
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LAST_SIGNAL
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};
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#define DEFAULT_PORT -1
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#define DEFAULT_CHANNEL 63
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#define DEFAULT_CONSECUTIVE 1
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#define DEFAULT_SKIP 0
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#define DEFAULT_DROP_INCOMPLETE TRUE
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#define DEFAULT_USE_AVC TRUE
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#define DEFAULT_GUID 0
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enum
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{
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PROP_0,
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PROP_PORT,
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PROP_CHANNEL,
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PROP_CONSECUTIVE,
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PROP_SKIP,
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PROP_DROP_INCOMPLETE,
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PROP_USE_AVC,
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PROP_GUID,
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PROP_DEVICE_NAME
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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 ("video/x-dv, "
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"format = (string) { NTSC, PAL }, " "systemstream = (boolean) true")
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);
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static void gst_dv1394src_uri_handler_init (gpointer g_iface,
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gpointer iface_data);
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static void gst_dv1394src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_dv1394src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_dv1394src_dispose (GObject * object);
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static GstClock *gst_dv1394src_provide_clock (GstElement * element);
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static GstStateChangeReturn gst_dv1394_src_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_dv1394src_start (GstBaseSrc * bsrc);
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static gboolean gst_dv1394src_stop (GstBaseSrc * bsrc);
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static gboolean gst_dv1394src_unlock (GstBaseSrc * bsrc);
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static GstFlowReturn gst_dv1394src_create (GstPushSrc * psrc, GstBuffer ** buf);
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static gboolean gst_dv1394src_query (GstBaseSrc * src, GstQuery * query);
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static void gst_dv1394src_update_device_name (GstDV1394Src * src);
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#define gst_dv1394src_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstDV1394Src, gst_dv1394src, GST_TYPE_PUSH_SRC,
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G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
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gst_dv1394src_uri_handler_init));
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static guint gst_dv1394src_signals[LAST_SIGNAL] = { 0 };
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static void
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gst_dv1394src_class_init (GstDV1394SrcClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSrcClass *gstbasesrc_class;
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GstPushSrcClass *gstpushsrc_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesrc_class = (GstBaseSrcClass *) klass;
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gstpushsrc_class = (GstPushSrcClass *) klass;
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gobject_class->set_property = gst_dv1394src_set_property;
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gobject_class->get_property = gst_dv1394src_get_property;
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gobject_class->dispose = gst_dv1394src_dispose;
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gstelement_class->provide_clock = gst_dv1394src_provide_clock;
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gstelement_class->change_state = gst_dv1394_src_change_state;
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gst_dv1394src_signals[SIGNAL_FRAME_DROPPED] =
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g_signal_new ("frame-dropped", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstDV1394SrcClass, frame_dropped),
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NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
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g_param_spec_int ("port", "Port", "Port number (-1 automatic)",
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-1, 16, DEFAULT_PORT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_CHANNEL,
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g_param_spec_int ("channel", "Channel", "Channel number for listening",
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0, 64, DEFAULT_CHANNEL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_CONSECUTIVE,
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g_param_spec_int ("consecutive", "consecutive frames",
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"send n consecutive frames after skipping", 1, G_MAXINT,
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DEFAULT_CONSECUTIVE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SKIP,
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g_param_spec_int ("skip", "skip frames", "skip n frames",
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0, G_MAXINT, DEFAULT_SKIP,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DROP_INCOMPLETE,
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g_param_spec_boolean ("drop-incomplete", "drop incomplete",
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"drop incomplete frames", DEFAULT_DROP_INCOMPLETE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_USE_AVC,
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g_param_spec_boolean ("use-avc", "Use AV/C", "Use AV/C VTR control",
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DEFAULT_USE_AVC, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_GUID,
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g_param_spec_uint64 ("guid", "GUID",
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"select one of multiple DV devices by its GUID. use a hexadecimal "
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"like 0xhhhhhhhhhhhhhhhh. (0 = no guid)", 0, G_MAXUINT64,
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DEFAULT_GUID, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstDV1394Src:device-name:
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*
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* Descriptive name of the currently opened device
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*/
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEVICE_NAME,
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g_param_spec_string ("device-name", "device name",
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"user-friendly name of the device", "Default",
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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gstbasesrc_class->negotiate = NULL;
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gstbasesrc_class->start = gst_dv1394src_start;
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gstbasesrc_class->stop = gst_dv1394src_stop;
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gstbasesrc_class->unlock = gst_dv1394src_unlock;
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gstbasesrc_class->query = gst_dv1394src_query;
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gstpushsrc_class->create = gst_dv1394src_create;
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&src_factory));
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gst_element_class_set_static_metadata (gstelement_class,
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"Firewire (1394) DV video source", "Source/Video",
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"Source for DV video data from firewire port",
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"Erik Walthinsen <omega@temple-baptist.com>, "
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"Daniel Fischer <dan@f3c.com>, " "Wim Taymans <wim@fluendo.com>, "
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"Zaheer Abbas Merali <zaheerabbas at merali dot org>");
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GST_DEBUG_CATEGORY_INIT (dv1394src_debug, "dv1394src", 0,
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"DV firewire source");
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}
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static void
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gst_dv1394src_init (GstDV1394Src * dv1394src)
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{
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GstPad *srcpad = GST_BASE_SRC_PAD (dv1394src);
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gst_base_src_set_live (GST_BASE_SRC (dv1394src), TRUE);
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gst_base_src_set_format (GST_BASE_SRC (dv1394src), GST_FORMAT_TIME);
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gst_base_src_set_do_timestamp (GST_BASE_SRC (dv1394src), TRUE);
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gst_pad_use_fixed_caps (srcpad);
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dv1394src->port = DEFAULT_PORT;
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dv1394src->channel = DEFAULT_CHANNEL;
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dv1394src->consecutive = DEFAULT_CONSECUTIVE;
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dv1394src->skip = DEFAULT_SKIP;
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dv1394src->drop_incomplete = DEFAULT_DROP_INCOMPLETE;
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dv1394src->use_avc = DEFAULT_USE_AVC;
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dv1394src->guid = DEFAULT_GUID;
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dv1394src->uri = g_strdup_printf ("dv://%d", dv1394src->port);
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dv1394src->device_name = g_strdup_printf ("Default");
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READ_SOCKET (dv1394src) = -1;
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WRITE_SOCKET (dv1394src) = -1;
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/* initialized when first header received */
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dv1394src->frame_size = 0;
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dv1394src->buf = NULL;
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dv1394src->frame = NULL;
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dv1394src->frame_sequence = 0;
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dv1394src->provided_clock = gst_1394_clock_new ("dv1394clock");
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}
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static void
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gst_dv1394src_dispose (GObject * object)
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{
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GstDV1394Src *src = GST_DV1394SRC (object);
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if (src->provided_clock) {
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g_object_unref (src->provided_clock);
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}
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g_free (src->uri);
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src->uri = NULL;
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g_free (src->device_name);
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src->device_name = NULL;
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_dv1394src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstDV1394Src *filter = GST_DV1394SRC (object);
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switch (prop_id) {
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case PROP_PORT:
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filter->port = g_value_get_int (value);
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g_free (filter->uri);
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filter->uri = g_strdup_printf ("dv://%d", filter->port);
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break;
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case PROP_CHANNEL:
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filter->channel = g_value_get_int (value);
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break;
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case PROP_SKIP:
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filter->skip = g_value_get_int (value);
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break;
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case PROP_CONSECUTIVE:
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filter->consecutive = g_value_get_int (value);
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break;
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case PROP_DROP_INCOMPLETE:
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filter->drop_incomplete = g_value_get_boolean (value);
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break;
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case PROP_USE_AVC:
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filter->use_avc = g_value_get_boolean (value);
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break;
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case PROP_GUID:
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filter->guid = g_value_get_uint64 (value);
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gst_dv1394src_update_device_name (filter);
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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_dv1394src_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstDV1394Src *filter = GST_DV1394SRC (object);
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switch (prop_id) {
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case PROP_PORT:
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g_value_set_int (value, filter->port);
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break;
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case PROP_CHANNEL:
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g_value_set_int (value, filter->channel);
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break;
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case PROP_SKIP:
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g_value_set_int (value, filter->skip);
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break;
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case PROP_CONSECUTIVE:
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g_value_set_int (value, filter->consecutive);
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break;
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case PROP_DROP_INCOMPLETE:
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g_value_set_boolean (value, filter->drop_incomplete);
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break;
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case PROP_USE_AVC:
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g_value_set_boolean (value, filter->use_avc);
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break;
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case PROP_GUID:
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g_value_set_uint64 (value, filter->guid);
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break;
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case PROP_DEVICE_NAME:
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g_value_set_string (value, filter->device_name);
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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 GstClock *
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gst_dv1394src_provide_clock (GstElement * element)
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{
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GstDV1394Src *dv1394src = GST_DV1394SRC (element);
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return GST_CLOCK_CAST (gst_object_ref (dv1394src->provided_clock));
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}
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static GstStateChangeReturn
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gst_dv1394_src_change_state (GstElement * element, GstStateChange transition)
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{
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GstDV1394Src *src = GST_DV1394SRC (element);
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switch (transition) {
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case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
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gst_element_post_message (element,
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gst_message_new_clock_lost (GST_OBJECT_CAST (element),
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GST_CLOCK_CAST (src->provided_clock)));
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break;
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default:
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break;
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}
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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if (ret == GST_STATE_CHANGE_FAILURE)
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return ret;
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switch (transition) {
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case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
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gst_element_post_message (element,
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gst_message_new_clock_provide (GST_OBJECT_CAST (element),
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GST_CLOCK_CAST (src->provided_clock), TRUE));
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break;
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default:
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break;
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}
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return ret;
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}
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#ifdef HAVE_LIBIEC61883
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static GstDV1394Src *
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gst_dv1394src_from_raw1394handle (raw1394handle_t handle)
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{
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iec61883_dv_t dv = (iec61883_dv_t) raw1394_get_userdata (handle);
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iec61883_dv_fb_t dv_fb =
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(iec61883_dv_fb_t) iec61883_dv_get_callback_data (dv);
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return GST_DV1394SRC (iec61883_dv_fb_get_callback_data (dv_fb));
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}
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#else /* HAVE_LIBIEC61883 */
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static GstDV1394Src *
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gst_dv1394src_from_raw1394handle (raw1394handle_t handle)
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{
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return GST_DV1394SRC (raw1394_get_userdata (handle));
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}
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#endif /* HAVE_LIBIEC61883 */
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|
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#ifdef HAVE_LIBIEC61883
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static int
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gst_dv1394src_iec61883_receive (unsigned char *data, int len,
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int complete, void *cbdata)
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{
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GstDV1394Src *dv1394src = GST_DV1394SRC (cbdata);
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if (G_UNLIKELY (!gst_pad_has_current_caps (GST_BASE_SRC_PAD (dv1394src)))) {
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GstCaps *caps;
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unsigned char *p = data;
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// figure format (NTSC/PAL)
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if (p[3] & 0x80) {
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// PAL
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dv1394src->frame_size = PAL_FRAMESIZE;
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dv1394src->frame_rate = PAL_FRAMERATE;
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GST_DEBUG ("PAL data");
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caps = gst_caps_new_simple ("video/x-dv",
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"format", G_TYPE_STRING, "PAL",
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"systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
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} else {
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// NTSC (untested)
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dv1394src->frame_size = NTSC_FRAMESIZE;
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dv1394src->frame_rate = NTSC_FRAMERATE;
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GST_DEBUG
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("NTSC data [untested] - please report success/failure to <dan@f3c.com>");
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caps = gst_caps_new_simple ("video/x-dv",
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"format", G_TYPE_STRING, "NTSC",
|
|
"systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
}
|
|
gst_pad_set_caps (GST_BASE_SRC_PAD (dv1394src), caps);
|
|
gst_caps_unref (caps);
|
|
}
|
|
|
|
dv1394src->frame = NULL;
|
|
if (G_LIKELY ((dv1394src->frame_sequence + 1) % (dv1394src->skip +
|
|
dv1394src->consecutive) < dv1394src->consecutive)) {
|
|
if (complete && len == dv1394src->frame_size) {
|
|
GstBuffer *buf;
|
|
|
|
buf = gst_buffer_new_and_alloc (dv1394src->frame_size);
|
|
|
|
GST_BUFFER_OFFSET (buf) = dv1394src->frame_sequence;
|
|
gst_buffer_fill (buf, 0, data, len);
|
|
dv1394src->buf = buf;
|
|
}
|
|
}
|
|
dv1394src->frame_sequence++;
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
static int
|
|
gst_dv1394src_iso_receive (raw1394handle_t handle, int channel, size_t len,
|
|
quadlet_t * data)
|
|
{
|
|
GstDV1394Src *dv1394src = gst_dv1394src_from_raw1394handle (handle);
|
|
|
|
if (len > 16) {
|
|
/*
|
|
the following code taken from kino-0.51 (Dan Dennedy/Charles Yates)
|
|
Kindly relicensed under the LGPL. See the commit log for version 1.6 of
|
|
this file in CVS.
|
|
*/
|
|
unsigned char *p = (unsigned char *) &data[3];
|
|
|
|
int section_type = p[0] >> 5; /* section type is in bits 5 - 7 */
|
|
int dif_sequence = p[1] >> 4; /* dif sequence number is in bits 4 - 7 */
|
|
int dif_block = p[2];
|
|
|
|
/* if we are at the beginning of a frame,
|
|
we set buf=frame, and alloc a new buffer for frame
|
|
*/
|
|
if (section_type == 0 && dif_sequence == 0) { // dif header
|
|
if (!GST_PAD_CAPS (GST_BASE_SRC_PAD (dv1394src))) {
|
|
GstCaps *caps;
|
|
|
|
// figure format (NTSC/PAL)
|
|
if (p[3] & 0x80) {
|
|
// PAL
|
|
dv1394src->frame_size = PAL_FRAMESIZE;
|
|
dv1394src->frame_rate = PAL_FRAMERATE;
|
|
GST_DEBUG ("PAL data");
|
|
caps = gst_caps_new_simple ("video/x-dv",
|
|
"format", G_TYPE_STRING, "PAL",
|
|
"systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
} else {
|
|
// NTSC (untested)
|
|
dv1394src->frame_size = NTSC_FRAMESIZE;
|
|
dv1394src->frame_rate = NTSC_FRAMERATE;
|
|
GST_DEBUG
|
|
("NTSC data [untested] - please report success/failure to <dan@f3c.com>");
|
|
caps = gst_caps_new_simple ("video/x-dv",
|
|
"format", G_TYPE_STRING, "NTSC",
|
|
"systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
}
|
|
gst_pad_set_caps (GST_BASE_SRC_PAD (dv1394src), caps);
|
|
gst_caps_unref (caps);
|
|
}
|
|
// drop last frame when not complete
|
|
if (!dv1394src->drop_incomplete
|
|
|| dv1394src->bytes_in_frame == dv1394src->frame_size) {
|
|
dv1394src->buf = dv1394src->frame;
|
|
} else {
|
|
GST_INFO_OBJECT (GST_ELEMENT (dv1394src), "incomplete frame dropped");
|
|
g_signal_emit (G_OBJECT (dv1394src),
|
|
gst_dv1394src_signals[SIGNAL_FRAME_DROPPED], 0);
|
|
if (dv1394src->frame) {
|
|
gst_buffer_unref (dv1394src->frame);
|
|
}
|
|
}
|
|
if ((dv1394src->frame_sequence + 1) % (dv1394src->skip +
|
|
dv1394src->consecutive) < dv1394src->consecutive) {
|
|
GstBuffer *buf;
|
|
gint64 i64;
|
|
|
|
buf = gst_buffer_new_and_alloc (dv1394src->frame_size);
|
|
|
|
/* fill in offset, duration, timestamp */
|
|
GST_BUFFER_OFFSET (buf) = dv1394src->frame_sequence;
|
|
dv1394src->frame = buf;
|
|
}
|
|
dv1394src->frame_sequence++;
|
|
dv1394src->bytes_in_frame = 0;
|
|
}
|
|
|
|
if (dv1394src->frame != NULL) {
|
|
guint8 *data = GST_BUFFER_DATA (dv1394src->frame);
|
|
|
|
switch (section_type) {
|
|
case 0: /* 1 Header block */
|
|
/* p[3] |= 0x80; // hack to force PAL data */
|
|
memcpy (data + dif_sequence * 150 * 80, p, 480);
|
|
break;
|
|
|
|
case 1: /* 2 Subcode blocks */
|
|
memcpy (data + dif_sequence * 150 * 80 + (1 + dif_block) * 80, p,
|
|
480);
|
|
break;
|
|
|
|
case 2: /* 3 VAUX blocks */
|
|
memcpy (data + dif_sequence * 150 * 80 + (3 + dif_block) * 80, p,
|
|
480);
|
|
break;
|
|
|
|
case 3: /* 9 Audio blocks interleaved with video */
|
|
memcpy (data + dif_sequence * 150 * 80 + (6 + dif_block * 16) * 80, p,
|
|
480);
|
|
break;
|
|
|
|
case 4: /* 135 Video blocks interleaved with audio */
|
|
memcpy (data + dif_sequence * 150 * 80 + (7 + (dif_block / 15) +
|
|
dif_block) * 80, p, 480);
|
|
break;
|
|
|
|
default: /* we can't handle any other data */
|
|
break;
|
|
}
|
|
dv1394src->bytes_in_frame += 480;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
/*
|
|
* When an ieee1394 bus reset happens, usually a device has been removed
|
|
* or added. We send a message on the message bus with the node count
|
|
* and whether the capture device used in this element connected, disconnected
|
|
* or was unchanged
|
|
* Message structure:
|
|
* nodecount - integer with number of nodes on bus
|
|
* current-device-change - integer (1 if device connected, 0 if no change to
|
|
* current device status, -1 if device disconnected)
|
|
*/
|
|
static int
|
|
gst_dv1394src_bus_reset (raw1394handle_t handle, unsigned int generation)
|
|
{
|
|
GstDV1394Src *src;
|
|
gint nodecount;
|
|
GstMessage *message;
|
|
GstStructure *structure;
|
|
gint current_device_change;
|
|
gint i;
|
|
|
|
src = gst_dv1394src_from_raw1394handle (handle);
|
|
|
|
GST_INFO_OBJECT (src, "have bus reset");
|
|
|
|
/* update generation - told to do so by docs */
|
|
raw1394_update_generation (handle, generation);
|
|
nodecount = raw1394_get_nodecount (handle);
|
|
/* allocate memory for portinfo */
|
|
|
|
/* current_device_change is -1 if camera disconnected, 0 if other device
|
|
* connected or 1 if camera has now connected */
|
|
current_device_change = -1;
|
|
for (i = 0; i < nodecount; i++) {
|
|
if (src->guid == rom1394_get_guid (handle, i)) {
|
|
/* Camera is with us */
|
|
GST_DEBUG ("Camera is with us");
|
|
if (!src->connected) {
|
|
current_device_change = 1;
|
|
src->connected = TRUE;
|
|
} else
|
|
current_device_change = 0;
|
|
}
|
|
}
|
|
if (src->connected && current_device_change == -1) {
|
|
GST_DEBUG ("Camera has disconnected");
|
|
src->connected = FALSE;
|
|
} else if (!src->connected && current_device_change == -1) {
|
|
GST_DEBUG ("Camera is still not with us");
|
|
current_device_change = 0;
|
|
}
|
|
|
|
structure = gst_structure_new ("ieee1394-bus-reset", "nodecount", G_TYPE_INT,
|
|
nodecount, "current-device-change", G_TYPE_INT, current_device_change,
|
|
NULL);
|
|
message = gst_message_new_element (GST_OBJECT (src), structure);
|
|
gst_element_post_message (GST_ELEMENT (src), message);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_dv1394src_create (GstPushSrc * psrc, GstBuffer ** buf)
|
|
{
|
|
GstDV1394Src *dv1394src = GST_DV1394SRC (psrc);
|
|
struct pollfd pollfds[2];
|
|
|
|
pollfds[0].fd = raw1394_get_fd (dv1394src->handle);
|
|
pollfds[0].events = POLLIN | POLLERR | POLLHUP | POLLPRI;
|
|
pollfds[1].fd = READ_SOCKET (dv1394src);
|
|
pollfds[1].events = POLLIN | POLLERR | POLLHUP | POLLPRI;
|
|
|
|
if (G_UNLIKELY (dv1394src->buf)) {
|
|
/* maybe we had an error before, and there's a stale buffer? */
|
|
gst_buffer_unref (dv1394src->buf);
|
|
dv1394src->buf = NULL;
|
|
}
|
|
|
|
while (TRUE) {
|
|
int res = poll (pollfds, 2, -1);
|
|
|
|
if (G_UNLIKELY (res < 0)) {
|
|
if (errno == EAGAIN || errno == EINTR)
|
|
continue;
|
|
else
|
|
goto error_while_polling;
|
|
}
|
|
|
|
if (G_UNLIKELY (pollfds[1].revents)) {
|
|
char command;
|
|
|
|
if (pollfds[1].revents & POLLIN)
|
|
READ_COMMAND (dv1394src, command, res);
|
|
|
|
goto told_to_stop;
|
|
} else if (G_LIKELY (pollfds[0].revents & POLLIN)) {
|
|
/* shouldn't block in theory */
|
|
raw1394_loop_iterate (dv1394src->handle);
|
|
|
|
if (dv1394src->buf)
|
|
break;
|
|
}
|
|
}
|
|
|
|
g_assert (dv1394src->buf);
|
|
|
|
*buf = dv1394src->buf;
|
|
dv1394src->buf = NULL;
|
|
return GST_FLOW_OK;
|
|
|
|
error_while_polling:
|
|
{
|
|
GST_ELEMENT_ERROR (dv1394src, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
|
|
return GST_FLOW_EOS;
|
|
}
|
|
told_to_stop:
|
|
{
|
|
GST_DEBUG_OBJECT (dv1394src, "told to stop, shutting down");
|
|
return GST_FLOW_FLUSHING;
|
|
}
|
|
}
|
|
|
|
static int
|
|
gst_dv1394src_discover_avc_node (GstDV1394Src * src)
|
|
{
|
|
int node = -1;
|
|
int i, j = 0;
|
|
int m = src->num_ports;
|
|
|
|
if (src->port >= 0) {
|
|
/* search on explicit port */
|
|
j = src->port;
|
|
m = j + 1;
|
|
}
|
|
|
|
/* loop over all our ports */
|
|
for (; j < m && node == -1; j++) {
|
|
raw1394handle_t handle;
|
|
struct raw1394_portinfo pinf[16];
|
|
|
|
/* open the port */
|
|
handle = raw1394_new_handle ();
|
|
if (!handle) {
|
|
GST_WARNING ("raw1394 - failed to get handle: %s.\n", strerror (errno));
|
|
continue;
|
|
}
|
|
if (raw1394_get_port_info (handle, pinf, 16) < 0) {
|
|
GST_WARNING ("raw1394 - failed to get port info: %s.\n",
|
|
strerror (errno));
|
|
goto next;
|
|
}
|
|
|
|
/* tell raw1394 which host adapter to use */
|
|
if (raw1394_set_port (handle, j) < 0) {
|
|
GST_WARNING ("raw1394 - failed to set set port: %s.\n", strerror (errno));
|
|
goto next;
|
|
}
|
|
|
|
/* now loop over all the nodes */
|
|
for (i = 0; i < raw1394_get_nodecount (handle); i++) {
|
|
/* are we looking for an explicit GUID ? */
|
|
if (src->guid != 0) {
|
|
if (src->guid == rom1394_get_guid (handle, i)) {
|
|
node = i;
|
|
src->port = j;
|
|
g_free (src->uri);
|
|
src->uri = g_strdup_printf ("dv://%d", src->port);
|
|
break;
|
|
}
|
|
} else {
|
|
rom1394_directory rom_dir;
|
|
|
|
/* select first AV/C Tape Recorder Player node */
|
|
if (rom1394_get_directory (handle, i, &rom_dir) < 0) {
|
|
GST_WARNING ("error reading config rom directory for node %d\n", i);
|
|
continue;
|
|
}
|
|
if ((rom1394_get_node_type (&rom_dir) == ROM1394_NODE_TYPE_AVC) &&
|
|
avc1394_check_subunit_type (handle, i, AVC1394_SUBUNIT_TYPE_VCR)) {
|
|
node = i;
|
|
src->port = j;
|
|
src->guid = rom1394_get_guid (handle, i);
|
|
g_free (src->uri);
|
|
src->uri = g_strdup_printf ("dv://%d", src->port);
|
|
g_free (src->device_name);
|
|
src->device_name = g_strdup (rom_dir.label);
|
|
break;
|
|
}
|
|
rom1394_free_directory (&rom_dir);
|
|
}
|
|
}
|
|
next:
|
|
raw1394_destroy_handle (handle);
|
|
}
|
|
return node;
|
|
}
|
|
|
|
static gboolean
|
|
gst_dv1394src_start (GstBaseSrc * bsrc)
|
|
{
|
|
GstDV1394Src *src = GST_DV1394SRC (bsrc);
|
|
int control_sock[2];
|
|
|
|
src->connected = FALSE;
|
|
|
|
if (socketpair (PF_UNIX, SOCK_STREAM, 0, control_sock) < 0)
|
|
goto socket_pair;
|
|
|
|
READ_SOCKET (src) = control_sock[0];
|
|
WRITE_SOCKET (src) = control_sock[1];
|
|
|
|
if (fcntl (READ_SOCKET (src), F_SETFL, O_NONBLOCK) < 0)
|
|
GST_ERROR_OBJECT (src, "failed to make read socket non-blocking: %s",
|
|
g_strerror (errno));
|
|
if (fcntl (WRITE_SOCKET (src), F_SETFL, O_NONBLOCK) < 0)
|
|
GST_ERROR_OBJECT (src, "failed to make write socket non-blocking: %s",
|
|
g_strerror (errno));
|
|
|
|
src->handle = raw1394_new_handle ();
|
|
|
|
if (!src->handle) {
|
|
if (errno == EACCES)
|
|
goto permission_denied;
|
|
else if (errno == ENOENT)
|
|
goto not_found;
|
|
else
|
|
goto no_handle;
|
|
}
|
|
|
|
src->num_ports = raw1394_get_port_info (src->handle, src->pinfo, 16);
|
|
|
|
if (src->num_ports == 0)
|
|
goto no_ports;
|
|
|
|
if (src->use_avc || src->port == -1)
|
|
src->avc_node = gst_dv1394src_discover_avc_node (src);
|
|
|
|
/* lets destroy handle and create one on port
|
|
this is more reliable than setting port on
|
|
the existing handle */
|
|
raw1394_destroy_handle (src->handle);
|
|
src->handle = raw1394_new_handle_on_port (src->port);
|
|
if (!src->handle)
|
|
goto cannot_set_port;
|
|
|
|
raw1394_set_userdata (src->handle, src);
|
|
raw1394_set_bus_reset_handler (src->handle, gst_dv1394src_bus_reset);
|
|
|
|
#ifdef HAVE_LIBIEC61883
|
|
if ((src->iec61883dv =
|
|
iec61883_dv_fb_init (src->handle,
|
|
gst_dv1394src_iec61883_receive, src)) == NULL)
|
|
goto cannot_initialise_dv;
|
|
|
|
#else
|
|
raw1394_set_iso_handler (src->handle, src->channel,
|
|
gst_dv1394src_iso_receive);
|
|
#endif
|
|
|
|
GST_DEBUG_OBJECT (src, "successfully opened up 1394 connection");
|
|
src->connected = TRUE;
|
|
|
|
#ifdef HAVE_LIBIEC61883
|
|
if (iec61883_dv_fb_start (src->iec61883dv, src->channel) != 0)
|
|
goto cannot_start;
|
|
#else
|
|
if (raw1394_start_iso_rcv (src->handle, src->channel) < 0)
|
|
goto cannot_start;
|
|
#endif
|
|
|
|
if (src->use_avc) {
|
|
raw1394handle_t avc_handle = raw1394_new_handle_on_port (src->port);
|
|
|
|
/* start the VCR */
|
|
if (avc_handle) {
|
|
if (!avc1394_vcr_is_recording (avc_handle, src->avc_node)
|
|
&& avc1394_vcr_is_playing (avc_handle, src->avc_node)
|
|
!= AVC1394_VCR_OPERAND_PLAY_FORWARD)
|
|
avc1394_vcr_play (avc_handle, src->avc_node);
|
|
raw1394_destroy_handle (avc_handle);
|
|
} else {
|
|
GST_WARNING_OBJECT (src, "Starting VCR via avc1394 failed: %s",
|
|
g_strerror (errno));
|
|
}
|
|
}
|
|
|
|
gst_1394_clock_set_handle (src->provided_clock, src->handle);
|
|
|
|
return TRUE;
|
|
|
|
socket_pair:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ_WRITE, (NULL),
|
|
GST_ERROR_SYSTEM);
|
|
return FALSE;
|
|
}
|
|
permission_denied:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
|
|
return FALSE;
|
|
}
|
|
not_found:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL), GST_ERROR_SYSTEM);
|
|
return FALSE;
|
|
}
|
|
no_handle:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
|
|
("can't get raw1394 handle (%s)", g_strerror (errno)));
|
|
return FALSE;
|
|
}
|
|
no_ports:
|
|
{
|
|
raw1394_destroy_handle (src->handle);
|
|
src->handle = NULL;
|
|
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
|
|
("no ports available for raw1394"));
|
|
return FALSE;
|
|
}
|
|
cannot_set_port:
|
|
{
|
|
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
|
|
("can't set 1394 port %d", src->port));
|
|
return FALSE;
|
|
}
|
|
cannot_start:
|
|
{
|
|
raw1394_destroy_handle (src->handle);
|
|
src->handle = NULL;
|
|
#ifdef HAVE_LIBIEC61883
|
|
iec61883_dv_fb_close (src->iec61883dv);
|
|
src->iec61883dv = NULL;
|
|
#endif
|
|
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
|
|
("can't start 1394 iso receive"));
|
|
return FALSE;
|
|
}
|
|
#ifdef HAVE_LIBIEC61883
|
|
cannot_initialise_dv:
|
|
{
|
|
raw1394_destroy_handle (src->handle);
|
|
src->handle = NULL;
|
|
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
|
|
("can't initialise iec61883 dv"));
|
|
return FALSE;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static gboolean
|
|
gst_dv1394src_stop (GstBaseSrc * bsrc)
|
|
{
|
|
GstDV1394Src *src = GST_DV1394SRC (bsrc);
|
|
|
|
close (READ_SOCKET (src));
|
|
close (WRITE_SOCKET (src));
|
|
READ_SOCKET (src) = -1;
|
|
WRITE_SOCKET (src) = -1;
|
|
#ifdef HAVE_LIBIEC61883
|
|
iec61883_dv_fb_close (src->iec61883dv);
|
|
#else
|
|
raw1394_stop_iso_rcv (src->handle, src->channel);
|
|
#endif
|
|
|
|
if (src->use_avc) {
|
|
raw1394handle_t avc_handle = raw1394_new_handle_on_port (src->port);
|
|
|
|
/* pause and stop the VCR */
|
|
if (avc_handle) {
|
|
if (!avc1394_vcr_is_recording (avc_handle, src->avc_node)
|
|
&& (avc1394_vcr_is_playing (avc_handle, src->avc_node)
|
|
!= AVC1394_VCR_OPERAND_PLAY_FORWARD_PAUSE))
|
|
avc1394_vcr_pause (avc_handle, src->avc_node);
|
|
avc1394_vcr_stop (avc_handle, src->avc_node);
|
|
raw1394_destroy_handle (avc_handle);
|
|
} else {
|
|
GST_WARNING_OBJECT (src, "Starting VCR via avc1394 failed: %s",
|
|
g_strerror (errno));
|
|
}
|
|
}
|
|
|
|
gst_1394_clock_unset_handle (src->provided_clock);
|
|
|
|
raw1394_destroy_handle (src->handle);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_dv1394src_unlock (GstBaseSrc * bsrc)
|
|
{
|
|
GstDV1394Src *src = GST_DV1394SRC (bsrc);
|
|
|
|
SEND_COMMAND (src, CONTROL_STOP);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_dv1394src_query (GstBaseSrc * basesrc, GstQuery * query)
|
|
{
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_LATENCY:
|
|
{
|
|
gst_query_set_latency (query, TRUE, GST_SECOND / 25, GST_SECOND / 25);
|
|
}
|
|
break;
|
|
default:
|
|
goto not_supported;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
not_supported:
|
|
return GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
|
|
}
|
|
|
|
static void
|
|
gst_dv1394src_update_device_name (GstDV1394Src * src)
|
|
{
|
|
raw1394handle_t handle;
|
|
gint portcount, port, nodecount, node;
|
|
rom1394_directory directory;
|
|
|
|
g_free (src->device_name);
|
|
src->device_name = NULL;
|
|
|
|
GST_LOG_OBJECT (src, "updating device name for current GUID");
|
|
|
|
handle = raw1394_new_handle ();
|
|
|
|
if (handle == NULL)
|
|
goto gethandle_failed;
|
|
|
|
portcount = raw1394_get_port_info (handle, NULL, 0);
|
|
for (port = 0; port < portcount; port++) {
|
|
if (raw1394_set_port (handle, port) >= 0) {
|
|
nodecount = raw1394_get_nodecount (handle);
|
|
for (node = 0; node < nodecount; node++) {
|
|
if (src->guid == rom1394_get_guid (handle, node)) {
|
|
if (rom1394_get_directory (handle, node, &directory) >= 0) {
|
|
g_free (src->device_name);
|
|
src->device_name = g_strdup (directory.label);
|
|
rom1394_free_directory (&directory);
|
|
goto done;
|
|
} else {
|
|
GST_WARNING ("error reading rom directory for node %d", node);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
src->device_name = g_strdup ("Unknown"); /* FIXME: translate? */
|
|
|
|
done:
|
|
|
|
raw1394_destroy_handle (handle);
|
|
return;
|
|
|
|
/* ERRORS */
|
|
gethandle_failed:
|
|
{
|
|
GST_WARNING ("failed to get raw1394 handle: %s", g_strerror (errno));
|
|
src->device_name = g_strdup ("Unknown"); /* FIXME: translate? */
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*** GSTURIHANDLER INTERFACE *************************************************/
|
|
|
|
static GstURIType
|
|
gst_dv1394src_uri_get_type (GType type)
|
|
{
|
|
return GST_URI_SRC;
|
|
}
|
|
|
|
static const gchar *const *
|
|
gst_dv1394src_uri_get_protocols (GType type)
|
|
{
|
|
static const gchar *protocols[] = { (char *) "dv", NULL };
|
|
|
|
return protocols;
|
|
}
|
|
|
|
static gchar *
|
|
gst_dv1394src_uri_get_uri (GstURIHandler * handler)
|
|
{
|
|
GstDV1394Src *gst_dv1394src = GST_DV1394SRC (handler);
|
|
|
|
return gst_dv1394src->uri;
|
|
}
|
|
|
|
static gboolean
|
|
gst_dv1394src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
|
|
GError ** error)
|
|
{
|
|
gchar *protocol, *location;
|
|
gboolean ret = TRUE;
|
|
GstDV1394Src *gst_dv1394src = GST_DV1394SRC (handler);
|
|
|
|
protocol = gst_uri_get_protocol (uri);
|
|
if (strcmp (protocol, "dv") != 0) {
|
|
g_free (protocol);
|
|
g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_BAD_URI, "Invalid DV URI");
|
|
return FALSE;
|
|
}
|
|
g_free (protocol);
|
|
|
|
location = gst_uri_get_location (uri);
|
|
if (location && *location != '\0')
|
|
gst_dv1394src->port = strtol (location, NULL, 10);
|
|
else
|
|
gst_dv1394src->port = DEFAULT_PORT;
|
|
g_free (location);
|
|
g_free (gst_dv1394src->uri);
|
|
gst_dv1394src->uri = g_strdup_printf ("dv://%d", gst_dv1394src->port);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_dv1394src_uri_handler_init (gpointer g_iface, gpointer iface_data)
|
|
{
|
|
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
|
|
|
|
iface->get_type = gst_dv1394src_uri_get_type;
|
|
iface->get_protocols = gst_dv1394src_uri_get_protocols;
|
|
iface->get_uri = gst_dv1394src_uri_get_uri;
|
|
iface->set_uri = gst_dv1394src_uri_set_uri;
|
|
}
|