mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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61a50361fb
Original commit message from CVS: Initial revision
324 lines
8.6 KiB
C
324 lines
8.6 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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//#define GST_DEBUG_ENABLED
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#include <string.h>
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#include "gstavitypes.h"
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/* elementfactory information */
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static GstElementDetails gst_avi_types_details = {
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"avi type converter",
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"Decoder/Video",
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"Converts avi types into gstreamer types",
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VERSION,
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"Wim Taymans <wim.taymans@tvd.be>",
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"(C) 1999",
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};
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/* AviTypes signals and args */
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enum {
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/* FILL ME */
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_TYPE_FOUND,
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/* FILL ME */
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};
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GST_PADTEMPLATE_FACTORY (sink_templ,
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"sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"avitypes_sink",
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"video/avi",
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"format", GST_PROPS_LIST (
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GST_PROPS_STRING ("strf_vids"),
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GST_PROPS_STRING ("strf_auds"),
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GST_PROPS_STRING ("strf_iavs")
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)
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)
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)
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GST_PADTEMPLATE_FACTORY (src_templ,
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"video_src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"avitypes_src",
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"video/raw",
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"format", GST_PROPS_LIST (
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GST_PROPS_FOURCC (GST_MAKE_FOURCC ('Y','U','Y','2')),
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GST_PROPS_FOURCC (GST_MAKE_FOURCC ('R','G','B',' '))
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),
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"width", GST_PROPS_INT_RANGE (16, 4096),
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"height", GST_PROPS_INT_RANGE (16, 4096)
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),
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GST_CAPS_NEW (
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"avitypes_src",
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"video/avi",
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"format", GST_PROPS_STRING ("strf_vids")
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),
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GST_CAPS_NEW (
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"src_audio",
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"audio/raw",
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0),
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"endianness", GST_PROPS_INT (G_BYTE_ORDER),
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"signed", GST_PROPS_LIST (
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GST_PROPS_BOOLEAN (TRUE),
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GST_PROPS_BOOLEAN (FALSE)
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),
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"width", GST_PROPS_LIST (
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GST_PROPS_INT (8),
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GST_PROPS_INT (16)
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),
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"depth", GST_PROPS_LIST (
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GST_PROPS_INT (8),
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GST_PROPS_INT (16)
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),
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"rate", GST_PROPS_INT_RANGE (11025, 44100),
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"channels", GST_PROPS_INT_RANGE (1, 2)
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),
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GST_CAPS_NEW (
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"src_audio",
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"audio/mp3",
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NULL
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),
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GST_CAPS_NEW (
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"src_video",
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"video/jpeg",
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NULL
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),
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GST_CAPS_NEW (
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"src_dv",
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"video/dv",
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NULL
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)
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)
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static void gst_avi_types_class_init (GstAviTypesClass *klass);
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static void gst_avi_types_init (GstAviTypes *avi_types);
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static void gst_avi_types_chain (GstPad *pad, GstBuffer *buffer);
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static void gst_avi_types_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
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static GstElementClass *parent_class = NULL;
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//static guint gst_avi_types_signals[LAST_SIGNAL] = { 0 };
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GType
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gst_avi_types_get_type(void)
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{
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static GType avi_types_type = 0;
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if (!avi_types_type) {
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static const GTypeInfo avi_types_info = {
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sizeof(GstAviTypesClass),
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NULL,
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NULL,
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(GClassInitFunc)gst_avi_types_class_init,
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NULL,
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NULL,
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sizeof(GstAviTypes),
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0,
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(GInstanceInitFunc)gst_avi_types_init,
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};
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avi_types_type = g_type_register_static(GST_TYPE_ELEMENT, "GstAviTypes", &avi_types_info, 0);
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}
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return avi_types_type;
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}
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static void
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gst_avi_types_class_init (GstAviTypesClass *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TYPE_FOUND,
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g_param_spec_boolean ("type_found","type_found","type_found",
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FALSE, G_PARAM_READABLE));
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gobject_class->get_property = gst_avi_types_get_property;
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}
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static void
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gst_avi_types_newcaps (GstPad *pad, GstCaps *caps)
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{
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GstAviTypes *avi_types;
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const gchar *format;
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GstCaps *newcaps = NULL;
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avi_types = GST_AVI_TYPES (gst_pad_get_parent (pad));
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format = gst_caps_get_string (caps, "format");
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if (!strcmp (format, "strf_vids")) {
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gulong video_format = gst_caps_get_fourcc_int (caps, "compression");
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switch (video_format) {
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case GST_MAKE_FOURCC ('M','J','P','G'):
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newcaps = gst_caps_new ("avi_type_mjpg",
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"video/jpeg", NULL);
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break;
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case GST_MAKE_FOURCC ('d','v','s','d'):
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newcaps = gst_caps_new ("avi_type_dv",
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"video/dv",
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gst_props_new (
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"format", GST_PROPS_STRING ("NTSC"),
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NULL));
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default:
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break;
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}
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}
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else if (!strcmp (format, "strf_auds")) {
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gint16 audio_format = gst_caps_get_int (caps, "fmt");
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gint blockalign = gst_caps_get_int (caps, "blockalign");
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gint size = gst_caps_get_int (caps, "size");
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gint channels = gst_caps_get_int (caps, "channels");
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gint rate = gst_caps_get_int (caps, "rate");
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gboolean sign = (size == 8 ? FALSE : TRUE);
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GST_DEBUG (GST_CAT_PLUGIN_INFO, "avitypes: new caps with audio format:%04x\n", audio_format);
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switch (audio_format) {
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case 0x0001:
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newcaps = gst_caps_new ("avi_type_pcm",
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"audio/raw",
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gst_props_new (
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0),
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"endianness", GST_PROPS_INT (G_BYTE_ORDER),
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"signed", GST_PROPS_BOOLEAN (sign),
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"width", GST_PROPS_INT ((blockalign*8)/channels),
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"depth", GST_PROPS_INT (size),
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"rate", GST_PROPS_INT (rate),
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"channels", GST_PROPS_INT (channels),
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NULL
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));
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break;
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case 0x0050:
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case 0x0055:
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newcaps = gst_caps_new ("avi_type_mp3",
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"audio/mp3", NULL);
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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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else if (!strcmp (format, "strf_iavs")) {
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newcaps = gst_caps_new ("avi_type_dv",
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"video/dv",
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gst_props_new (
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"format", GST_PROPS_STRING ("NTSC"),
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NULL));
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}
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if (newcaps) {
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gst_pad_set_caps (avi_types->srcpad, newcaps);
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avi_types->type_found = TRUE;
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}
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}
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static void
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gst_avi_types_init (GstAviTypes *avi_types)
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{
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avi_types->sinkpad = gst_pad_new_from_template (
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GST_PADTEMPLATE_GET (sink_templ), "sink");
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gst_element_add_pad (GST_ELEMENT (avi_types), avi_types->sinkpad);
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gst_pad_set_newcaps_function (avi_types->sinkpad, gst_avi_types_newcaps);
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gst_pad_set_chain_function (avi_types->sinkpad, gst_avi_types_chain);
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avi_types->srcpad = gst_pad_new_from_template (
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GST_PADTEMPLATE_GET (src_templ), "src");
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gst_element_add_pad (GST_ELEMENT (avi_types), avi_types->srcpad);
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avi_types->type_found = FALSE;
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}
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static void
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gst_avi_types_chain (GstPad *pad, GstBuffer *buffer)
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{
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GstAviTypes *avi_types;
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avi_types = GST_AVI_TYPES (gst_pad_get_parent (pad));
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if (GST_PAD_CONNECTED (avi_types->srcpad))
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gst_pad_push (avi_types->srcpad, buffer);
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else
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gst_buffer_unref (buffer);
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}
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static void
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gst_avi_types_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
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{
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GstAviTypes *src;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_AVI_TYPES (object));
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src = GST_AVI_TYPES (object);
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switch (prop_id) {
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case ARG_TYPE_FOUND:
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g_value_set_boolean (value, src->type_found);
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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 gboolean
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plugin_init (GModule *module, GstPlugin *plugin)
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{
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GstElementFactory *factory;
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/* create an elementfactory for the avi_types element */
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factory = gst_elementfactory_new ("avitypes",GST_TYPE_AVI_TYPES,
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&gst_avi_types_details);
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g_return_val_if_fail (factory != NULL, FALSE);
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//gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_templ));
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gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (sink_templ));
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gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
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return TRUE;
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}
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GstPluginDesc plugin_desc = {
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GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"avitypes",
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plugin_init
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};
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