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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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7688db602f
Original commit message from CVS: 2005-11-15 Andy Wingo <wingo@pobox.com> * gst/elements/gstfakesrc.c (gst_fake_src_create): It's not an error if the user selected "no clock" as the clocking method.
805 lines
24 KiB
C
805 lines
24 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstfakesrc.c:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:gstfakesrc
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* @short_description: Push empty (no data) buffers around
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* @see_also: #GstFakeSink
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*
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* Dummy source that generates empty buffers.
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*/
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#include <stdlib.h>
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#include <string.h>
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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 "gstfakesrc.h"
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#include <gst/gstmarshal.h>
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static GstStaticPadTemplate srctemplate = 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_ANY);
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GST_DEBUG_CATEGORY_STATIC (gst_fake_src_debug);
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#define GST_CAT_DEFAULT gst_fake_src_debug
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static GstElementDetails gst_fake_src_details =
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GST_ELEMENT_DETAILS ("Fake Source",
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"Source",
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"Push empty (no data) buffers around",
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"Erik Walthinsen <omega@cse.ogi.edu>, "
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"Wim Taymans <wim.taymans@chello.be>");
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/* FakeSrc signals and args */
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enum
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{
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/* FILL ME */
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SIGNAL_HANDOFF,
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LAST_SIGNAL
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};
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#define DEFAULT_OUTPUT FAKE_SRC_FIRST_LAST_LOOP
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#define DEFAULT_DATA FAKE_SRC_DATA_ALLOCATE
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#define DEFAULT_SIZETYPE FAKE_SRC_SIZETYPE_NULL
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#define DEFAULT_SIZEMIN 0
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#define DEFAULT_SIZEMAX 4096
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#define DEFAULT_FILLTYPE FAKE_SRC_FILLTYPE_NULL
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#define DEFAULT_DATARATE 0
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#define DEFAULT_SYNC FALSE
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#define DEFAULT_PATTERN NULL
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#define DEFAULT_EOS FALSE
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#define DEFAULT_SIGNAL_HANDOFFS FALSE
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#define DEFAULT_SILENT FALSE
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#define DEFAULT_DUMP FALSE
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#define DEFAULT_PARENTSIZE 4096*10
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#define DEFAULT_CAN_ACTIVATE_PULL TRUE
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#define DEFAULT_CAN_ACTIVATE_PUSH TRUE
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enum
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{
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PROP_0,
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PROP_OUTPUT,
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PROP_DATA,
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PROP_SIZETYPE,
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PROP_SIZEMIN,
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PROP_SIZEMAX,
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PROP_FILLTYPE,
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PROP_DATARATE,
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PROP_SYNC,
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PROP_PATTERN,
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PROP_EOS,
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PROP_SIGNAL_HANDOFFS,
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PROP_SILENT,
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PROP_DUMP,
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PROP_PARENTSIZE,
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PROP_LAST_MESSAGE,
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PROP_CAN_ACTIVATE_PULL,
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PROP_CAN_ACTIVATE_PUSH,
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PROP_IS_LIVE
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};
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/* not implemented
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#define GST_TYPE_FAKE_SRC_OUTPUT (gst_fake_src_output_get_type())
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static GType
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gst_fake_src_output_get_type (void)
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{
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static GType fakesrc_output_type = 0;
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static GEnumValue fakesrc_output[] = {
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{FAKE_SRC_FIRST_LAST_LOOP, "1", "First-Last loop"},
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{FAKE_SRC_LAST_FIRST_LOOP, "2", "Last-First loop"},
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{FAKE_SRC_PING_PONG, "3", "Ping-Pong"},
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{FAKE_SRC_ORDERED_RANDOM, "4", "Ordered Random"},
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{FAKE_SRC_RANDOM, "5", "Random"},
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{FAKE_SRC_PATTERN_LOOP, "6", "Patttern loop"},
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{FAKE_SRC_PING_PONG_PATTERN, "7", "Ping-Pong Pattern"},
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{FAKE_SRC_GET_ALWAYS_SUCEEDS, "8", "'_get' Always succeeds"},
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{0, NULL, NULL},
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};
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if (!fakesrc_output_type) {
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fakesrc_output_type =
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g_enum_register_static ("GstFakeSrcOutput", fakesrc_output);
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}
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return fakesrc_output_type;
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}
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*/
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#define GST_TYPE_FAKE_SRC_DATA (gst_fake_src_data_get_type())
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static GType
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gst_fake_src_data_get_type (void)
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{
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static GType fakesrc_data_type = 0;
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static GEnumValue fakesrc_data[] = {
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{FAKE_SRC_DATA_ALLOCATE, "1", "Allocate data"},
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{FAKE_SRC_DATA_SUBBUFFER, "2", "Subbuffer data"},
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{0, NULL, NULL},
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};
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if (!fakesrc_data_type) {
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fakesrc_data_type = g_enum_register_static ("GstFakeSrcData", fakesrc_data);
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}
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return fakesrc_data_type;
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}
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#define GST_TYPE_FAKE_SRC_SIZETYPE (gst_fake_src_sizetype_get_type())
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static GType
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gst_fake_src_sizetype_get_type (void)
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{
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static GType fakesrc_sizetype_type = 0;
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static GEnumValue fakesrc_sizetype[] = {
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{FAKE_SRC_SIZETYPE_NULL, "1", "Send empty buffers"},
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{FAKE_SRC_SIZETYPE_FIXED, "2", "Fixed size buffers (sizemax sized)"},
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{FAKE_SRC_SIZETYPE_RANDOM, "3",
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"Random sized buffers (sizemin <= size <= sizemax)"},
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{0, NULL, NULL},
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};
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if (!fakesrc_sizetype_type) {
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fakesrc_sizetype_type =
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g_enum_register_static ("GstFakeSrcSizeType", fakesrc_sizetype);
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}
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return fakesrc_sizetype_type;
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}
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#define GST_TYPE_FAKE_SRC_FILLTYPE (gst_fake_src_filltype_get_type())
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static GType
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gst_fake_src_filltype_get_type (void)
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{
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static GType fakesrc_filltype_type = 0;
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static GEnumValue fakesrc_filltype[] = {
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{FAKE_SRC_FILLTYPE_NOTHING, "1", "Leave data as malloced"},
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{FAKE_SRC_FILLTYPE_NULL, "2", "Fill buffers with zeros"},
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{FAKE_SRC_FILLTYPE_RANDOM, "3", "Fill buffers with random crap"},
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{FAKE_SRC_FILLTYPE_PATTERN, "4", "Fill buffers with pattern 0x00 -> 0xff"},
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{FAKE_SRC_FILLTYPE_PATTERN_CONT, "5",
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"Fill buffers with pattern 0x00 -> 0xff that spans buffers"},
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{0, NULL, NULL},
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};
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if (!fakesrc_filltype_type) {
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fakesrc_filltype_type =
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g_enum_register_static ("GstFakeSrcFillType", fakesrc_filltype);
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}
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return fakesrc_filltype_type;
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}
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#define _do_init(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_fake_src_debug, "fakesrc", 0, "fakesrc element");
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GST_BOILERPLATE_FULL (GstFakeSrc, gst_fake_src, GstBaseSrc, GST_TYPE_BASE_SRC,
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_do_init);
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static void gst_fake_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_fake_src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_fake_src_start (GstBaseSrc * basesrc);
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static gboolean gst_fake_src_stop (GstBaseSrc * basesrc);
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static gboolean gst_fake_src_is_seekable (GstBaseSrc * basesrc);
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static gboolean gst_fake_src_event_handler (GstBaseSrc * src, GstEvent * event);
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static GstFlowReturn gst_fake_src_create (GstBaseSrc * src, guint64 offset,
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guint length, GstBuffer ** buf);
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static guint gst_fake_src_signals[LAST_SIGNAL] = { 0 };
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static void
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gst_fake_src_base_init (gpointer g_class)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&srctemplate));
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gst_element_class_set_details (gstelement_class, &gst_fake_src_details);
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}
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static void
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gst_fake_src_class_init (GstFakeSrcClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSrcClass *gstbase_src_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbase_src_class = (GstBaseSrcClass *) klass;
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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_fake_src_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_fake_src_get_property);
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/*
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FIXME: this is not implemented; would make sense once basesrc and fakesrc
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support multiple pads
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_OUTPUT,
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g_param_spec_enum ("output", "output", "Output method (currently unused)",
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GST_TYPE_FAKE_SRC_OUTPUT, DEFAULT_OUTPUT, G_PARAM_READWRITE));
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*/
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DATA,
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g_param_spec_enum ("data", "data", "Data allocation method",
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GST_TYPE_FAKE_SRC_DATA, DEFAULT_DATA, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SIZETYPE,
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g_param_spec_enum ("sizetype", "sizetype",
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"How to determine buffer sizes", GST_TYPE_FAKE_SRC_SIZETYPE,
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DEFAULT_SIZETYPE, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SIZEMIN,
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g_param_spec_int ("sizemin", "sizemin", "Minimum buffer size", 0,
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G_MAXINT, DEFAULT_SIZEMIN, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SIZEMAX,
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g_param_spec_int ("sizemax", "sizemax", "Maximum buffer size", 0,
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G_MAXINT, DEFAULT_SIZEMAX, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PARENTSIZE,
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g_param_spec_int ("parentsize", "parentsize",
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"Size of parent buffer for sub-buffered allocation", 0, G_MAXINT,
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DEFAULT_PARENTSIZE, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FILLTYPE,
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g_param_spec_enum ("filltype", "filltype",
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"How to fill the buffer, if at all", GST_TYPE_FAKE_SRC_FILLTYPE,
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DEFAULT_FILLTYPE, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DATARATE,
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g_param_spec_int ("datarate", "Datarate",
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"Timestamps buffers with number of bytes per second (0 = none)", 0,
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G_MAXINT, DEFAULT_DATARATE, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SYNC,
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g_param_spec_boolean ("sync", "Sync", "Sync to the clock to the datarate",
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DEFAULT_SYNC, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PATTERN,
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g_param_spec_string ("pattern", "pattern", "pattern", DEFAULT_PATTERN,
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G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LAST_MESSAGE,
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g_param_spec_string ("last-message", "last-message",
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"The last status message", NULL, G_PARAM_READABLE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SILENT,
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g_param_spec_boolean ("silent", "Silent",
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"Don't produce last_message events", DEFAULT_SILENT,
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G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SIGNAL_HANDOFFS,
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g_param_spec_boolean ("signal-handoffs", "Signal handoffs",
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"Send a signal before pushing the buffer", DEFAULT_SIGNAL_HANDOFFS,
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G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DUMP,
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g_param_spec_boolean ("dump", "Dump", "Dump produced bytes to stdout",
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DEFAULT_DUMP, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass),
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PROP_CAN_ACTIVATE_PUSH,
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g_param_spec_boolean ("can-activate-push", "Can activate push",
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"Can activate in push mode", DEFAULT_CAN_ACTIVATE_PUSH,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (G_OBJECT_CLASS (klass),
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PROP_CAN_ACTIVATE_PULL,
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g_param_spec_boolean ("can-activate-pull", "Can activate pull",
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"Can activate in pull mode", DEFAULT_CAN_ACTIVATE_PULL,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_IS_LIVE,
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g_param_spec_boolean ("is-live", "Is this a live source",
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"True if the element cannot produce data in PAUSED", FALSE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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/**
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* GstFakeSrc::handoff:
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* @fakesrc: the fakesrc instance
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* @buffer: the buffer that will be pushed
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* @pad: the pad that will sent it
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*
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* This signal gets emitted before sending the buffer.
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*/
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gst_fake_src_signals[SIGNAL_HANDOFF] =
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g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstFakeSrcClass, handoff), NULL, NULL,
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gst_marshal_VOID__OBJECT_OBJECT, G_TYPE_NONE, 2, GST_TYPE_BUFFER,
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GST_TYPE_PAD);
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gstbase_src_class->is_seekable = GST_DEBUG_FUNCPTR (gst_fake_src_is_seekable);
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gstbase_src_class->start = GST_DEBUG_FUNCPTR (gst_fake_src_start);
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gstbase_src_class->stop = GST_DEBUG_FUNCPTR (gst_fake_src_stop);
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gstbase_src_class->event = GST_DEBUG_FUNCPTR (gst_fake_src_event_handler);
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gstbase_src_class->create = GST_DEBUG_FUNCPTR (gst_fake_src_create);
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}
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static void
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gst_fake_src_init (GstFakeSrc * fakesrc, GstFakeSrcClass * g_class)
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{
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fakesrc->output = FAKE_SRC_FIRST_LAST_LOOP;
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fakesrc->segment_start = -1;
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fakesrc->segment_end = -1;
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fakesrc->buffer_count = 0;
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fakesrc->silent = DEFAULT_SILENT;
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fakesrc->signal_handoffs = DEFAULT_SIGNAL_HANDOFFS;
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fakesrc->dump = DEFAULT_DUMP;
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fakesrc->pattern_byte = 0x00;
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fakesrc->data = FAKE_SRC_DATA_ALLOCATE;
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fakesrc->sizetype = FAKE_SRC_SIZETYPE_NULL;
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fakesrc->filltype = FAKE_SRC_FILLTYPE_NOTHING;
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fakesrc->sizemin = DEFAULT_SIZEMIN;
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fakesrc->sizemax = DEFAULT_SIZEMAX;
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fakesrc->parent = NULL;
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fakesrc->parentsize = DEFAULT_PARENTSIZE;
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fakesrc->last_message = NULL;
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fakesrc->datarate = DEFAULT_DATARATE;
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fakesrc->sync = DEFAULT_SYNC;
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}
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static gboolean
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gst_fake_src_event_handler (GstBaseSrc * basesrc, GstEvent * event)
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{
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GstFakeSrc *src;
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src = GST_FAKE_SRC (basesrc);
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if (!src->silent) {
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const GstStructure *s;
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gchar *sstr;
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GST_LOCK (src);
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g_free (src->last_message);
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if ((s = gst_event_get_structure (event)))
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sstr = gst_structure_to_string (s);
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else
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sstr = g_strdup ("");
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src->last_message =
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g_strdup_printf ("event ******* E (type: %d, %s) %p",
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GST_EVENT_TYPE (event), sstr, event);
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g_free (sstr);
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GST_UNLOCK (src);
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g_object_notify (G_OBJECT (src), "last_message");
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}
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return TRUE;
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}
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static void
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gst_fake_src_alloc_parent (GstFakeSrc * src)
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{
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GstBuffer *buf;
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buf = gst_buffer_new ();
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GST_BUFFER_DATA (buf) = g_malloc (src->parentsize);
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GST_BUFFER_SIZE (buf) = src->parentsize;
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src->parent = buf;
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src->parentoffset = 0;
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}
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static void
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gst_fake_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstFakeSrc *src;
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GstBaseSrc *basesrc;
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src = GST_FAKE_SRC (object);
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basesrc = GST_BASE_SRC (object);
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switch (prop_id) {
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case PROP_OUTPUT:
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g_warning ("not yet implemented");
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break;
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case PROP_DATA:
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src->data = g_value_get_enum (value);
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if (src->data == FAKE_SRC_DATA_SUBBUFFER) {
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if (!src->parent)
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gst_fake_src_alloc_parent (src);
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} else {
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if (src->parent) {
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gst_buffer_unref (src->parent);
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src->parent = NULL;
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}
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}
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break;
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case PROP_SIZETYPE:
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src->sizetype = g_value_get_enum (value);
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break;
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case PROP_SIZEMIN:
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src->sizemin = g_value_get_int (value);
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break;
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case PROP_SIZEMAX:
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src->sizemax = g_value_get_int (value);
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break;
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case PROP_PARENTSIZE:
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src->parentsize = g_value_get_int (value);
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break;
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case PROP_FILLTYPE:
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src->filltype = g_value_get_enum (value);
|
|
break;
|
|
case PROP_DATARATE:
|
|
src->datarate = g_value_get_int (value);
|
|
break;
|
|
case PROP_SYNC:
|
|
src->sync = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_PATTERN:
|
|
break;
|
|
case PROP_SILENT:
|
|
src->silent = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_SIGNAL_HANDOFFS:
|
|
src->signal_handoffs = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_DUMP:
|
|
src->dump = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_CAN_ACTIVATE_PUSH:
|
|
g_return_if_fail (!GST_OBJECT_FLAG_IS_SET (object, GST_BASE_SRC_STARTED));
|
|
GST_BASE_SRC (src)->can_activate_push = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_CAN_ACTIVATE_PULL:
|
|
g_return_if_fail (!GST_OBJECT_FLAG_IS_SET (object, GST_BASE_SRC_STARTED));
|
|
src->can_activate_pull = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_IS_LIVE:
|
|
gst_base_src_set_live (basesrc, g_value_get_boolean (value));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_fake_src_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstFakeSrc *src;
|
|
GstBaseSrc *basesrc;
|
|
|
|
g_return_if_fail (GST_IS_FAKE_SRC (object));
|
|
|
|
src = GST_FAKE_SRC (object);
|
|
basesrc = GST_BASE_SRC (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_OUTPUT:
|
|
g_value_set_enum (value, src->output);
|
|
break;
|
|
case PROP_DATA:
|
|
g_value_set_enum (value, src->data);
|
|
break;
|
|
case PROP_SIZETYPE:
|
|
g_value_set_enum (value, src->sizetype);
|
|
break;
|
|
case PROP_SIZEMIN:
|
|
g_value_set_int (value, src->sizemin);
|
|
break;
|
|
case PROP_SIZEMAX:
|
|
g_value_set_int (value, src->sizemax);
|
|
break;
|
|
case PROP_PARENTSIZE:
|
|
g_value_set_int (value, src->parentsize);
|
|
break;
|
|
case PROP_FILLTYPE:
|
|
g_value_set_enum (value, src->filltype);
|
|
break;
|
|
case PROP_DATARATE:
|
|
g_value_set_int (value, src->datarate);
|
|
break;
|
|
case PROP_SYNC:
|
|
g_value_set_boolean (value, src->sync);
|
|
break;
|
|
case PROP_PATTERN:
|
|
g_value_set_string (value, src->pattern);
|
|
break;
|
|
case PROP_SILENT:
|
|
g_value_set_boolean (value, src->silent);
|
|
break;
|
|
case PROP_SIGNAL_HANDOFFS:
|
|
g_value_set_boolean (value, src->signal_handoffs);
|
|
break;
|
|
case PROP_DUMP:
|
|
g_value_set_boolean (value, src->dump);
|
|
break;
|
|
case PROP_LAST_MESSAGE:
|
|
GST_LOCK (src);
|
|
g_value_set_string (value, src->last_message);
|
|
GST_UNLOCK (src);
|
|
break;
|
|
case PROP_CAN_ACTIVATE_PUSH:
|
|
g_value_set_boolean (value, GST_BASE_SRC (src)->can_activate_push);
|
|
break;
|
|
case PROP_CAN_ACTIVATE_PULL:
|
|
g_value_set_boolean (value, src->can_activate_pull);
|
|
break;
|
|
case PROP_IS_LIVE:
|
|
g_value_set_boolean (value, gst_base_src_is_live (basesrc));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_fake_src_prepare_buffer (GstFakeSrc * src, GstBuffer * buf)
|
|
{
|
|
if (GST_BUFFER_SIZE (buf) == 0)
|
|
return;
|
|
|
|
switch (src->filltype) {
|
|
case FAKE_SRC_FILLTYPE_NULL:
|
|
memset (GST_BUFFER_DATA (buf), 0, GST_BUFFER_SIZE (buf));
|
|
break;
|
|
case FAKE_SRC_FILLTYPE_RANDOM:
|
|
{
|
|
gint i;
|
|
guint8 *ptr = GST_BUFFER_DATA (buf);
|
|
|
|
for (i = GST_BUFFER_SIZE (buf); i; i--) {
|
|
*ptr++ = (gint8) ((255.0) * rand () / (RAND_MAX));
|
|
}
|
|
break;
|
|
}
|
|
case FAKE_SRC_FILLTYPE_PATTERN:
|
|
src->pattern_byte = 0x00;
|
|
case FAKE_SRC_FILLTYPE_PATTERN_CONT:
|
|
{
|
|
gint i;
|
|
guint8 *ptr = GST_BUFFER_DATA (buf);
|
|
|
|
for (i = GST_BUFFER_SIZE (buf); i; i--) {
|
|
*ptr++ = src->pattern_byte++;
|
|
}
|
|
break;
|
|
}
|
|
case FAKE_SRC_FILLTYPE_NOTHING:
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_fake_src_alloc_buffer (GstFakeSrc * src, guint size)
|
|
{
|
|
GstBuffer *buf;
|
|
|
|
buf = gst_buffer_new ();
|
|
GST_BUFFER_SIZE (buf) = size;
|
|
|
|
if (size != 0) {
|
|
switch (src->filltype) {
|
|
case FAKE_SRC_FILLTYPE_NOTHING:
|
|
GST_BUFFER_DATA (buf) = g_malloc (size);
|
|
break;
|
|
case FAKE_SRC_FILLTYPE_NULL:
|
|
GST_BUFFER_DATA (buf) = g_malloc0 (size);
|
|
break;
|
|
case FAKE_SRC_FILLTYPE_RANDOM:
|
|
case FAKE_SRC_FILLTYPE_PATTERN:
|
|
case FAKE_SRC_FILLTYPE_PATTERN_CONT:
|
|
default:
|
|
GST_BUFFER_DATA (buf) = g_malloc (size);
|
|
gst_fake_src_prepare_buffer (src, buf);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
static guint
|
|
gst_fake_src_get_size (GstFakeSrc * src)
|
|
{
|
|
guint size;
|
|
|
|
switch (src->sizetype) {
|
|
case FAKE_SRC_SIZETYPE_FIXED:
|
|
size = src->sizemax;
|
|
break;
|
|
case FAKE_SRC_SIZETYPE_RANDOM:
|
|
size =
|
|
src->sizemin +
|
|
(guint8) (((gfloat) src->sizemax) * rand () / (RAND_MAX +
|
|
(gfloat) src->sizemin));
|
|
break;
|
|
case FAKE_SRC_SIZETYPE_NULL:
|
|
default:
|
|
size = 0;
|
|
break;
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_fake_src_create_buffer (GstFakeSrc * src)
|
|
{
|
|
GstBuffer *buf;
|
|
guint size;
|
|
gboolean dump = src->dump;
|
|
|
|
size = gst_fake_src_get_size (src);
|
|
if (size == 0)
|
|
return gst_buffer_new ();
|
|
|
|
switch (src->data) {
|
|
case FAKE_SRC_DATA_ALLOCATE:
|
|
buf = gst_fake_src_alloc_buffer (src, size);
|
|
break;
|
|
case FAKE_SRC_DATA_SUBBUFFER:
|
|
/* see if we have a parent to subbuffer */
|
|
if (!src->parent) {
|
|
gst_fake_src_alloc_parent (src);
|
|
g_assert (src->parent);
|
|
}
|
|
/* see if it's large enough */
|
|
if ((GST_BUFFER_SIZE (src->parent) - src->parentoffset) >= size) {
|
|
buf = gst_buffer_create_sub (src->parent, src->parentoffset, size);
|
|
src->parentoffset += size;
|
|
} else {
|
|
/* the parent is useless now */
|
|
gst_buffer_unref (src->parent);
|
|
src->parent = NULL;
|
|
/* try again (this will allocate a new parent) */
|
|
return gst_fake_src_create_buffer (src);
|
|
}
|
|
gst_fake_src_prepare_buffer (src, buf);
|
|
break;
|
|
default:
|
|
g_warning ("fakesrc: dunno how to allocate buffers !");
|
|
buf = gst_buffer_new ();
|
|
break;
|
|
}
|
|
if (dump) {
|
|
gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_fake_src_create (GstBaseSrc * basesrc, guint64 offset, guint length,
|
|
GstBuffer ** ret)
|
|
{
|
|
GstFakeSrc *src;
|
|
GstBuffer *buf;
|
|
GstClockTime time;
|
|
|
|
src = GST_FAKE_SRC (basesrc);
|
|
|
|
if (src->buffer_count == src->segment_end) {
|
|
GST_INFO ("buffer_count reaches segment_end %d %d", src->buffer_count,
|
|
src->segment_end);
|
|
return GST_FLOW_UNEXPECTED;
|
|
}
|
|
|
|
buf = gst_fake_src_create_buffer (src);
|
|
GST_BUFFER_OFFSET (buf) = src->buffer_count++;
|
|
|
|
if (src->datarate > 0) {
|
|
time = (src->bytes_sent * GST_SECOND) / src->datarate;
|
|
if (src->sync) {
|
|
/* gst_element_wait (GST_ELEMENT (src), time); */
|
|
}
|
|
|
|
GST_BUFFER_DURATION (buf) =
|
|
GST_BUFFER_SIZE (buf) * GST_SECOND / src->datarate;
|
|
} else if (gst_base_src_is_live (basesrc)) {
|
|
GstClock *clock;
|
|
|
|
clock = gst_element_get_clock (GST_ELEMENT (src));
|
|
|
|
if (clock) {
|
|
time = gst_clock_get_time (clock);
|
|
time -= gst_element_get_base_time (GST_ELEMENT (src));
|
|
gst_object_unref (clock);
|
|
} else {
|
|
/* not an error not to have a clock */
|
|
time = GST_CLOCK_TIME_NONE;
|
|
}
|
|
} else {
|
|
time = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
GST_BUFFER_TIMESTAMP (buf) = time;
|
|
|
|
if (!src->silent) {
|
|
gchar ts_str[64], dur_str[64];
|
|
|
|
GST_LOCK (src);
|
|
g_free (src->last_message);
|
|
|
|
if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
|
|
g_snprintf (ts_str, sizeof (ts_str), "%" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
|
|
} else {
|
|
g_strlcpy (ts_str, "none", sizeof (ts_str));
|
|
}
|
|
|
|
if (GST_BUFFER_DURATION (buf) != GST_CLOCK_TIME_NONE) {
|
|
g_snprintf (dur_str, sizeof (dur_str), "%" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
|
|
} else {
|
|
g_strlcpy (dur_str, "none", sizeof (dur_str));
|
|
}
|
|
|
|
src->last_message =
|
|
g_strdup_printf ("get ******* > (%5d bytes, timestamp: %s"
|
|
", duration: %s, offset: %" G_GINT64_FORMAT ", offset_end: %"
|
|
G_GINT64_FORMAT ", flags: %d) %p", GST_BUFFER_SIZE (buf), ts_str,
|
|
dur_str, GST_BUFFER_OFFSET (buf), GST_BUFFER_OFFSET_END (buf),
|
|
GST_MINI_OBJECT (buf)->flags, buf);
|
|
GST_UNLOCK (src);
|
|
|
|
g_object_notify (G_OBJECT (src), "last_message");
|
|
}
|
|
|
|
if (src->signal_handoffs) {
|
|
GST_LOG_OBJECT (src, "pre handoff emit");
|
|
g_signal_emit (G_OBJECT (src), gst_fake_src_signals[SIGNAL_HANDOFF], 0,
|
|
buf, basesrc->srcpad);
|
|
GST_LOG_OBJECT (src, "post handoff emit");
|
|
}
|
|
|
|
src->bytes_sent += GST_BUFFER_SIZE (buf);
|
|
|
|
*ret = buf;
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static gboolean
|
|
gst_fake_src_start (GstBaseSrc * basesrc)
|
|
{
|
|
GstFakeSrc *src;
|
|
|
|
src = GST_FAKE_SRC (basesrc);
|
|
|
|
src->buffer_count = 0;
|
|
src->pattern_byte = 0x00;
|
|
src->bytes_sent = 0;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_fake_src_stop (GstBaseSrc * basesrc)
|
|
{
|
|
GstFakeSrc *src;
|
|
|
|
src = GST_FAKE_SRC (basesrc);
|
|
|
|
GST_LOCK (src);
|
|
if (src->parent) {
|
|
gst_buffer_unref (src->parent);
|
|
src->parent = NULL;
|
|
}
|
|
g_free (src->last_message);
|
|
src->last_message = NULL;
|
|
GST_UNLOCK (src);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_fake_src_is_seekable (GstBaseSrc * basesrc)
|
|
{
|
|
GstFakeSrc *src = GST_FAKE_SRC (basesrc);
|
|
|
|
return src->can_activate_pull;
|
|
}
|