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gstreamer/gst/avi/gstavimux.c
Thomas Vander Stichele 79bc3ebfa1 change NULL to (NULL) for GST_ELEMENT_ERROR 
Original commit message from CVS:
change NULL to (NULL) for GST_ELEMENT_ERROR
Make sure errors end with "."
2004-02-02 17:23:33 +00:00

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/* AVI muxer plugin for GStreamer
* Copyright (C) 2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* based on:
* - the old avimuxer (by Wim Taymans)
* - xawtv's aviwriter (by Gerd Knorr)
* - mjpegtools' avilib (by Rainer Johanni)
* - openDML large-AVI docs
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gst/gst-i18n-plugin.h"
#include <stdlib.h>
#include <string.h>
#include <gst/video/video.h>
#include "gstavimux.h"
#ifndef LE_FROM_GUINT16
#define LE_FROM_GUINT16 GUINT16_FROM_LE
#endif
#ifndef LE_FROM_GUINT32
#define LE_FROM_GUINT32 GUINT32_FROM_LE
#endif
/* AviMux signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_BIGFILE,
};
static GstStaticPadTemplate src_factory =
GST_STATIC_PAD_TEMPLATE (
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-msvideo")
);
static GstStaticPadTemplate video_sink_factory =
GST_STATIC_PAD_TEMPLATE (
"video_%d",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS (
"video/x-raw-yuv, "
"format = (fourcc) { YUY2, I420 }, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ]; "
"video/x-jpeg, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ]; "
"video/x-divx, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ], "
"divxversion = (int) [ 3, 5 ]; "
"video/x-xvid, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ]; "
"video/x-3ivx, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ]; "
"video/x-msmpeg, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ], "
"msmpegversion = (int) [ 41, 43 ]; "
"video/mpeg, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ], "
"mpegversion = (int) 1, "
"systemstream = (boolean) FALSE; "
"video/x-h263, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ]; "
"video/x-dv, "
"width = (int) 720, "
"height = (int) { 576, 480 }, "
"systemstream = (boolean) FALSE; "
"video/x-huffyuv, "
"width = (int) [ 16, 4096 ], "
"height = (int) [ 16, 4096 ]"
)
);
static GstStaticPadTemplate audio_sink_factory =
GST_STATIC_PAD_TEMPLATE (
"audio_%d",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS (
"audio/x-raw-int, "
"endianness = (int) LITTLE_ENDIAN, "
"signed = (boolean) { TRUE, FALSE }, "
"width = (int) { 8, 16 }, "
"depth = (int) { 8, 16 }, "
"rate = (int) [ 1000, 96000 ], "
"channels = (int) [ 1, 2 ]; "
"audio/mpeg, "
"mpegversion = (int) 1, "
"layer = (int) [ 1, 3 ], "
"rate = (int) [ 1000, 96000 ], "
"channels = (int) [ 1, 2 ]; "
"audio/x-vorbis, "
"rate = (int) [ 1000, 96000 ], "
"channels = (int) [ 1, 2 ]; "
"audio/x-ac3, "
"rate = (int) [ 1000, 96000 ], "
"channels = (int) [ 1, 2 ]"
)
);
static void gst_avimux_base_init (gpointer g_class);
static void gst_avimux_class_init (GstAviMuxClass *klass);
static void gst_avimux_init (GstAviMux *avimux);
static void gst_avimux_loop (GstElement *element);
static gboolean gst_avimux_handle_event (GstPad *pad,
GstEvent *event);
static GstPad* gst_avimux_request_new_pad (GstElement *element,
GstPadTemplate *templ,
const gchar *name);
static void gst_avimux_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gst_avimux_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static GstElementStateReturn gst_avimux_change_state (GstElement *element);
static GstElementClass *parent_class = NULL;
/*static guint gst_avimux_signals[LAST_SIGNAL] = { 0 }; */
GType
gst_avimux_get_type (void)
{
static GType avimux_type = 0;
if (!avimux_type) {
static const GTypeInfo avimux_info = {
sizeof(GstAviMuxClass),
gst_avimux_base_init,
NULL,
(GClassInitFunc)gst_avimux_class_init,
NULL,
NULL,
sizeof(GstAviMux),
0,
(GInstanceInitFunc)gst_avimux_init,
};
avimux_type = g_type_register_static(GST_TYPE_ELEMENT, "GstAviMux", &avimux_info, 0);
}
return avimux_type;
}
static void
gst_avimux_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
static GstElementDetails gst_avimux_details = GST_ELEMENT_DETAILS (
"Avi multiplexer",
"Codec/Muxer",
"Muxes audio and video into an avi stream",
"Ronald Bultje <rbultje@ronald.bitfreak.net>"
);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&audio_sink_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&video_sink_factory));
gst_element_class_set_details (element_class, &gst_avimux_details);
}
static void
gst_avimux_class_init (GstAviMuxClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BIGFILE,
g_param_spec_boolean("bigfile","Bigfile Support",
"Support for openDML-2.0 (big) AVI files",
0,G_PARAM_READWRITE));
gstelement_class->request_new_pad = gst_avimux_request_new_pad;
gstelement_class->change_state = gst_avimux_change_state;
gstelement_class->get_property = gst_avimux_get_property;
gstelement_class->set_property = gst_avimux_set_property;
}
static const GstEventMask *
gst_avimux_get_event_masks (GstPad *pad)
{
static const GstEventMask gst_avimux_sink_event_masks[] = {
{ GST_EVENT_EOS, 0 },
{ 0, }
};
return gst_avimux_sink_event_masks;
}
static void
gst_avimux_init (GstAviMux *avimux)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (avimux);
avimux->srcpad = gst_pad_new_from_template (
gst_element_class_get_pad_template (klass, "src"), "src");
gst_element_add_pad (GST_ELEMENT (avimux), avimux->srcpad);
GST_FLAG_SET (GST_ELEMENT(avimux), GST_ELEMENT_EVENT_AWARE);
avimux->audiosinkpad = NULL;
avimux->audio_pad_connected = FALSE;
avimux->videosinkpad = NULL;
avimux->video_pad_connected = FALSE;
avimux->audio_buffer_queue = NULL;
avimux->video_buffer_queue = NULL;
avimux->num_frames = 0;
/* audio/video/AVI header initialisation */
memset(&(avimux->avi_hdr),0,sizeof(gst_riff_avih));
memset(&(avimux->vids_hdr),0,sizeof(gst_riff_strh));
memset(&(avimux->vids),0,sizeof(gst_riff_strf_vids));
memset(&(avimux->auds_hdr),0,sizeof(gst_riff_strh));
memset(&(avimux->auds),0,sizeof(gst_riff_strf_auds));
avimux->vids_hdr.type = GST_MAKE_FOURCC('v','i','d','s');
avimux->vids_hdr.rate = 1000000;
avimux->avi_hdr.max_bps = 10000000;
avimux->auds_hdr.type = GST_MAKE_FOURCC('a','u','d','s');
avimux->vids_hdr.quality = 0xFFFFFFFF;
avimux->auds_hdr.quality = 0xFFFFFFFF;
avimux->idx = NULL;
avimux->write_header = TRUE;
avimux->enable_large_avi = TRUE;
gst_element_set_loop_function(GST_ELEMENT(avimux), gst_avimux_loop);
}
static GstPadLinkReturn
gst_avimux_vidsinkconnect (GstPad *pad, const GstCaps *vscaps)
{
GstAviMux *avimux;
GstStructure *structure;
const gchar* mimetype;
gdouble fps = 0.;
gboolean ret;
avimux = GST_AVIMUX (gst_pad_get_parent (pad));
GST_DEBUG ("avimux: video sinkconnect triggered on %s",
gst_pad_get_name (pad));
structure = gst_caps_get_structure (vscaps, 0);
mimetype = gst_structure_get_name (structure);
/* global */
avimux->vids.size = sizeof(gst_riff_strf_vids);
avimux->vids.planes = 1;
ret = gst_structure_get_int (structure, "width", &avimux->vids.width);
ret &= gst_structure_get_int (structure, "height", &avimux->vids.height);
ret &= gst_structure_get_double (structure, "framerate", &fps);
if (!ret) return GST_PAD_LINK_REFUSED;
if (fps != 0.)
avimux->vids_hdr.scale = avimux->vids_hdr.rate / fps;
if (!strcmp (mimetype, "video/x-raw-yuv")) {
guint32 format;
gst_structure_get_fourcc (structure, "format", &format);
avimux->vids.compression = format;
switch (format)
{
case GST_MAKE_FOURCC('Y','U','Y','2'):
avimux->vids.bit_cnt = 16;
break;
case GST_MAKE_FOURCC('I','4','2','0'):
avimux->vids.bit_cnt = 12;
break;
}
} else {
avimux->vids.bit_cnt = 24;
avimux->vids.compression = 0;
/* find format */
if (!strcmp (mimetype, "video/x-huffyuv")) {
avimux->vids.compression = GST_MAKE_FOURCC('H','F','Y','U');
} else if (!strcmp (mimetype, "video/x-jpeg")) {
avimux->vids.compression = GST_MAKE_FOURCC('M','J','P','G');
} else if (!strcmp (mimetype, "video/x-divx")) {
gint divxversion;
gst_structure_get_int (structure, "divxversion", &divxversion);
switch (divxversion) {
case 3:
avimux->vids.compression = GST_MAKE_FOURCC('D','I','V','3');
break;
case 4:
avimux->vids.compression = GST_MAKE_FOURCC('D','I','V','X');
break;
case 5:
avimux->vids.compression = GST_MAKE_FOURCC('D','X','5','0');
break;
}
} else if (!strcmp (mimetype, "video/x-xvid")) {
avimux->vids.compression = GST_MAKE_FOURCC('X','V','I','D');
} else if (!strcmp (mimetype, "video/x-3ivx")) {
avimux->vids.compression = GST_MAKE_FOURCC('3','I','V','2');
} else if (!strcmp (mimetype, "video/x-msmpeg")) {
gint msmpegversion;
gst_structure_get_int (structure, "msmpegversion", &msmpegversion);
switch (msmpegversion) {
case 41:
avimux->vids.compression = GST_MAKE_FOURCC('M','P','G','4');
break;
case 42:
avimux->vids.compression = GST_MAKE_FOURCC('M','P','4','2');
break;
case 43:
avimux->vids.compression = GST_MAKE_FOURCC('M','P','4','3');
break;
}
} else if (!strcmp (mimetype, "video/x-dv")) {
avimux->vids.compression = GST_MAKE_FOURCC('D','V','S','D');
} else if (!strcmp (mimetype, "video/x-h263")) {
avimux->vids.compression = GST_MAKE_FOURCC('H','2','6','3');
} else if (!strcmp (mimetype, "video/mpeg")) {
avimux->vids.compression = GST_MAKE_FOURCC('M','P','E','G');
}
if (!avimux->vids.compression) {
return GST_PAD_LINK_DELAYED;
}
}
avimux->vids_hdr.fcc_handler = avimux->vids.compression;
avimux->vids.image_size = avimux->vids.height * avimux->vids.width;
avimux->avi_hdr.width = avimux->vids.width;
avimux->avi_hdr.height = avimux->vids.height;
avimux->avi_hdr.us_frame = avimux->vids_hdr.scale;
return GST_PAD_LINK_OK;
}
static GstPadLinkReturn
gst_avimux_audsinkconnect (GstPad *pad, const GstCaps *vscaps)
{
GstAviMux *avimux;
GstStructure *structure;
const gchar* mimetype;
int i;
avimux = GST_AVIMUX (gst_pad_get_parent (pad));
GST_DEBUG ("avimux: audio sinkconnect triggered on %s",
gst_pad_get_name (pad));
structure = gst_caps_get_structure (vscaps, 0);
mimetype = gst_structure_get_name (structure);
/* we want these for all */
gst_structure_get_int (structure, "channels", &i);
avimux->auds.channels = i;
gst_structure_get_int (structure, "rate", &i);
avimux->auds.rate = i;
if (!strcmp (mimetype, "audio/x-raw-int")) {
avimux->auds.format = GST_RIFF_WAVE_FORMAT_PCM;
gst_structure_get_int (structure, "width", &i);
avimux->auds.blockalign = i;
gst_structure_get_int (structure, "depth", &i);
avimux->auds.size = i;
/* set some more info straight */
avimux->auds.blockalign /= 8;
avimux->auds.blockalign *= avimux->auds.channels;
avimux->auds.av_bps = avimux->auds.blockalign * avimux->auds.rate;
} else if (!strcmp (mimetype, "audio/mpeg") ||
!strcmp (mimetype, "audio/x-vorbis") ||
!strcmp (mimetype, "audio/x-ac3")) {
avimux->auds.format = 0;
if (!strcmp (mimetype, "audio/mpeg")) {
gint layer = 3;
gst_structure_get_int (structure, "layer", &layer);
switch (layer) {
case 3:
avimux->auds.format = GST_RIFF_WAVE_FORMAT_MPEGL3;
break;
case 1: case 2:
avimux->auds.format = GST_RIFF_WAVE_FORMAT_MPEGL12;
break;
}
} else if (!strcmp (mimetype, "audio/x-vorbis")) {
avimux->auds.format = GST_RIFF_WAVE_FORMAT_VORBIS3;
} else if (!strcmp (mimetype, "audio/x-ac3")) {
avimux->auds.format = GST_RIFF_WAVE_FORMAT_A52;
}
avimux->auds.blockalign = 1;
avimux->auds.av_bps = 0;
avimux->auds.size = 16;
if (!avimux->auds.format) {
return GST_PAD_LINK_REFUSED;
}
}
avimux->auds_hdr.rate = avimux->auds.blockalign * avimux->auds.rate;
avimux->auds_hdr.samplesize = avimux->auds.blockalign;
avimux->auds_hdr.scale = avimux->auds.blockalign;
return GST_PAD_LINK_OK;
}
static void
gst_avimux_pad_link (GstPad *pad,
GstPad *peer,
gpointer data)
{
GstAviMux *avimux = GST_AVIMUX(data);
const gchar *padname = gst_pad_get_name (pad);
if (pad == avimux->audiosinkpad)
{
avimux->audio_pad_connected = TRUE;
}
else if (pad == avimux->videosinkpad)
{
avimux->video_pad_connected = TRUE;
}
else
{
g_warning("Unknown padname '%s'", padname);
return;
}
GST_DEBUG ("pad '%s' connected", padname);
}
static void
gst_avimux_pad_unlink (GstPad *pad,
GstPad *peer,
gpointer data)
{
GstAviMux *avimux = GST_AVIMUX(data);
const gchar *padname = gst_pad_get_name (pad);
if (pad == avimux->audiosinkpad)
{
avimux->audio_pad_connected = FALSE;
avimux->audiosinkpad = NULL;
}
else if (pad == avimux->videosinkpad)
{
avimux->video_pad_connected = FALSE;
avimux->videosinkpad = NULL;
}
else
{
g_warning("Unknown padname '%s'", padname);
return;
}
GST_DEBUG ("pad '%s' unlinked", padname);
}
static GstPad*
gst_avimux_request_new_pad (GstElement *element,
GstPadTemplate *templ,
const gchar *req_name)
{
GstAviMux *avimux;
GstPad *newpad;
GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
g_return_val_if_fail (templ != NULL, NULL);
if (templ->direction != GST_PAD_SINK) {
g_warning ("avimux: request pad that is not a SINK pad\n");
return NULL;
}
g_return_val_if_fail (GST_IS_AVIMUX (element), NULL);
avimux = GST_AVIMUX (element);
if (templ == gst_element_class_get_pad_template (klass, "audio_%d")) {
g_return_val_if_fail(avimux->audiosinkpad == NULL, NULL);
newpad = gst_pad_new_from_template (templ, "audio_00");
gst_pad_set_link_function (newpad, gst_avimux_audsinkconnect);
avimux->audiosinkpad = newpad;
}
else if (templ == gst_element_class_get_pad_template (klass, "video_%d")) {
g_return_val_if_fail(avimux->videosinkpad == NULL, NULL);
newpad = gst_pad_new_from_template (templ, "video_00");
gst_pad_set_link_function (newpad, gst_avimux_vidsinkconnect);
avimux->videosinkpad = newpad;
}
else {
g_warning ("avimux: this is not our template!\n");
return NULL;
}
g_signal_connect(newpad, "linked",
G_CALLBACK(gst_avimux_pad_link), (gpointer)avimux);
g_signal_connect(newpad, "unlinked",
G_CALLBACK(gst_avimux_pad_unlink), (gpointer)avimux);
gst_element_add_pad (element, newpad);
gst_pad_set_event_mask_function(newpad, gst_avimux_get_event_masks);
return newpad;
}
/* maybe some of these functions should be moved to riff.h? */
/* DISCLAIMER: this function is ugly. So be it (i.e. it makes the rest easier) */
static GstBuffer *
gst_avimux_riff_get_avi_header (GstAviMux *avimux)
{
GstBuffer *buffer;
guint8 *buffdata;
guint16 temp16;
guint32 temp32;
buffer = gst_buffer_new();
/* first, let's see what actually needs to be in the buffer */
GST_BUFFER_SIZE(buffer) = 0;
GST_BUFFER_SIZE(buffer) += 32 + sizeof(gst_riff_avih); /* avi header */
if (avimux->video_pad_connected)
{ /* we have video */
GST_BUFFER_SIZE(buffer) += 28 + sizeof(gst_riff_strh) + sizeof(gst_riff_strf_vids); /* vid hdr */
GST_BUFFER_SIZE(buffer) += 24; /* odml header */
}
if (avimux->audio_pad_connected)
{ /* we have audio */
GST_BUFFER_SIZE(buffer) += 28 + sizeof(gst_riff_strh) + sizeof(gst_riff_strf_auds); /* aud hdr */
}
/* this is the "riff size" */
avimux->header_size = GST_BUFFER_SIZE(buffer);
GST_BUFFER_SIZE(buffer) += 12; /* avi data header */
/* allocate the buffer */
buffdata = GST_BUFFER_DATA(buffer) = g_malloc(GST_BUFFER_SIZE(buffer));
/* avi header metadata */
memcpy(buffdata, "RIFF", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->header_size + avimux->idx_size + avimux->data_size);
memcpy(buffdata, &temp32, 4); buffdata += 4;
memcpy(buffdata, "AVI ", 4); buffdata += 4;
memcpy(buffdata, "LIST", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->header_size - 4*5);
memcpy(buffdata, &temp32, 4); buffdata += 4;
memcpy(buffdata, "hdrl", 4); buffdata += 4;
memcpy(buffdata, "avih", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(gst_riff_avih));
memcpy(buffdata, &temp32, 4); buffdata += 4;
/* the AVI header itself */
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.us_frame);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.max_bps);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.pad_gran);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.flags);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.tot_frames);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.init_frames);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.streams);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.bufsize);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.width);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.height);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.scale);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.rate);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.start);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->avi_hdr.length);
memcpy(buffdata, &temp32, 4); buffdata += 4;
if (avimux->video_pad_connected)
{
/* video header metadata */
memcpy(buffdata, "LIST", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(gst_riff_strh) + sizeof(gst_riff_strf_vids) + 4*5);
memcpy(buffdata, &temp32, 4); buffdata += 4;
memcpy(buffdata, "strl", 4); buffdata += 4;
/* generic header */
memcpy(buffdata, "strh", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(gst_riff_strh));
memcpy(buffdata, &temp32, 4); buffdata += 4;
/* the actual header */
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.type);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.fcc_handler);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.flags);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.priority);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.init_frames);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.scale);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.rate);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.start);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.length);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.bufsize);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.quality);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids_hdr.samplesize);
memcpy(buffdata, &temp32, 4); buffdata += 4;
/* the video header */
memcpy(buffdata, "strf", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(gst_riff_strf_vids));
memcpy(buffdata, &temp32, 4); buffdata += 4;
/* the actual header */
temp32 = LE_FROM_GUINT32(avimux->vids.size);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids.width);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids.height);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp16 = LE_FROM_GUINT16(avimux->vids.planes);
memcpy(buffdata, &temp16, 2); buffdata += 2;
temp16 = LE_FROM_GUINT16(avimux->vids.bit_cnt);
memcpy(buffdata, &temp16, 2); buffdata += 2;
temp32 = LE_FROM_GUINT32(avimux->vids.compression);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids.image_size);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids.xpels_meter);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids.ypels_meter);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids.num_colors);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->vids.imp_colors);
memcpy(buffdata, &temp32, 4); buffdata += 4;
}
if (avimux->audio_pad_connected)
{
/* audio header */
memcpy(buffdata, "LIST", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(gst_riff_strh) + sizeof(gst_riff_strf_auds) + 4*5);
memcpy(buffdata, &temp32, 4); buffdata += 4;
memcpy(buffdata, "strl", 4); buffdata += 4;
/* generic header */
memcpy(buffdata, "strh", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(gst_riff_strh));
memcpy(buffdata, &temp32, 4); buffdata += 4;
/* the actual header */
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.type);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.fcc_handler);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.flags);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.priority);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.init_frames);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.scale);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.rate);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.start);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.length);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.bufsize);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.quality);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds_hdr.samplesize);
memcpy(buffdata, &temp32, 4); buffdata += 4;
/* the audio header */
memcpy(buffdata, "strf", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(gst_riff_strf_auds));
memcpy(buffdata, &temp32, 4); buffdata += 4;
/* the actual header */
temp16 = LE_FROM_GUINT16(avimux->auds.format);
memcpy(buffdata, &temp16, 2); buffdata += 2;
temp16 = LE_FROM_GUINT16(avimux->auds.channels);
memcpy(buffdata, &temp16, 2); buffdata += 2;
temp32 = LE_FROM_GUINT32(avimux->auds.rate);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->auds.av_bps);
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp16 = LE_FROM_GUINT16(avimux->auds.blockalign);
memcpy(buffdata, &temp16, 2); buffdata += 2;
temp16 = LE_FROM_GUINT16(avimux->auds.size);
memcpy(buffdata, &temp16, 2); buffdata += 2;
}
if (avimux->video_pad_connected)
{
/* odml header */
memcpy(buffdata, "LIST", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(guint32)+4*3);
memcpy(buffdata, &temp32, 4); buffdata += 4;
memcpy(buffdata, "odml", 4); buffdata += 4;
memcpy(buffdata, "dmlh", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(sizeof(guint32));
memcpy(buffdata, &temp32, 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->total_frames);
memcpy(buffdata, &temp32, 4); buffdata += 4;
}
/* avi data header */
memcpy(buffdata, "LIST", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(avimux->data_size);
memcpy(buffdata, &temp32, 4); buffdata += 4;
memcpy(buffdata, "movi", 4);
return buffer;
}
static GstBuffer *
gst_avimux_riff_get_avix_header (guint32 datax_size)
{
GstBuffer *buffer;
guint8 *buffdata;
guint32 temp32;
buffer = gst_buffer_new();
GST_BUFFER_SIZE(buffer) = 24;
buffdata = GST_BUFFER_DATA(buffer) = g_malloc(GST_BUFFER_SIZE(buffer));
memcpy(buffdata, "LIST", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(datax_size+4*4);
memcpy(buffdata, &temp32, 4); buffdata += 4;
memcpy(buffdata, "AVIX", 4); buffdata += 4;
memcpy(buffdata, "LIST", 4); buffdata += 4;
temp32 = LE_FROM_GUINT32(datax_size);
memcpy(buffdata, &temp32, 4); buffdata += 4;
memcpy(buffdata, "movi", 4);
return buffer;
}
static GstBuffer *
gst_avimux_riff_get_video_header (guint32 video_frame_size)
{
GstBuffer *buffer;
guint32 temp32;
buffer = gst_buffer_new();
GST_BUFFER_DATA(buffer) = g_malloc(8);
GST_BUFFER_SIZE(buffer) = 8;
memcpy(GST_BUFFER_DATA(buffer), "00db", 4);
temp32 = LE_FROM_GUINT32(video_frame_size);
memcpy(GST_BUFFER_DATA(buffer)+4, &temp32, 4);
return buffer;
}
static GstBuffer *
gst_avimux_riff_get_audio_header (guint32 audio_sample_size)
{
GstBuffer *buffer;
guint32 temp32;
buffer = gst_buffer_new();
GST_BUFFER_DATA(buffer) = g_malloc(8);
GST_BUFFER_SIZE(buffer) = 8;
memcpy(GST_BUFFER_DATA(buffer), "01wb", 4);
temp32 = LE_FROM_GUINT32(audio_sample_size);
memcpy(GST_BUFFER_DATA(buffer)+4, &temp32, 4);
return buffer;
}
/* some other usable functions (thankyou xawtv ;-) ) */
static void
gst_avimux_add_index (GstAviMux *avimux, guchar *code, guint32 flags, guint32 size)
{
if (avimux->idx_index == avimux->idx_count)
{
avimux->idx_count += 256;
avimux->idx = realloc(avimux->idx, avimux->idx_count*sizeof(gst_riff_index_entry));
}
memcpy(&(avimux->idx[avimux->idx_index].id), code, 4);
avimux->idx[avimux->idx_index].flags = LE_FROM_GUINT32(flags);
avimux->idx[avimux->idx_index].offset = LE_FROM_GUINT32(avimux->idx_offset);
avimux->idx[avimux->idx_index].size = LE_FROM_GUINT32(size);
avimux->idx_index++;
}
static void
gst_avimux_write_index (GstAviMux *avimux)
{
GstBuffer *buffer;
guint32 temp32;
buffer = gst_buffer_new();
GST_BUFFER_SIZE(buffer) = 8;
GST_BUFFER_DATA(buffer) = g_malloc(8);
memcpy(GST_BUFFER_DATA(buffer), "idx1", 4);
temp32 = LE_FROM_GUINT32(avimux->idx_index * sizeof(gst_riff_index_entry));
memcpy(GST_BUFFER_DATA(buffer)+4, &temp32, 4);
gst_pad_push(avimux->srcpad, GST_DATA (buffer));
buffer = gst_buffer_new();
GST_BUFFER_SIZE(buffer) = avimux->idx_index * sizeof(gst_riff_index_entry);
GST_BUFFER_DATA(buffer) = (unsigned char*) avimux->idx;
avimux->idx = NULL; /* will be free()'ed by gst_buffer_unref() */
avimux->total_data += GST_BUFFER_SIZE(buffer);
gst_pad_push(avimux->srcpad, GST_DATA (buffer));
avimux->idx_size += avimux->idx_index * sizeof(gst_riff_index_entry) + 8;
/* update header */
avimux->avi_hdr.flags |= GST_RIFF_AVIH_HASINDEX;
}
static void
gst_avimux_bigfile(GstAviMux *avimux, gboolean last)
{
GstBuffer *header;
GstEvent *event;
if (avimux->is_bigfile)
{
/* sarch back */
event = gst_event_new_seek (GST_FORMAT_BYTES |
GST_SEEK_METHOD_SET |
GST_SEEK_FLAG_FLUSH,
avimux->avix_start);
/* if the event succeeds */
gst_pad_push(avimux->srcpad, GST_DATA(event));
/* rewrite AVIX header */
header = gst_avimux_riff_get_avix_header(avimux->datax_size);
gst_pad_push(avimux->srcpad, GST_DATA (header));
/* go back to current location */
event = gst_event_new_seek (GST_FORMAT_BYTES |
GST_SEEK_METHOD_SET |
GST_SEEK_FLAG_FLUSH,
avimux->total_data);
gst_pad_push(avimux->srcpad, GST_DATA(event));
}
avimux->avix_start = avimux->total_data;
if (last)
return;
avimux->is_bigfile = TRUE;
avimux->numx_frames = 0;
avimux->datax_size = 0;
header = gst_avimux_riff_get_avix_header(0);
avimux->total_data += GST_BUFFER_SIZE(header);
gst_pad_push(avimux->srcpad, GST_DATA (header));
}
/* enough header blabla now, let's go on to actually writing the headers */
static void
gst_avimux_start_file (GstAviMux *avimux)
{
GstBuffer *header;
avimux->total_data = 0;
avimux->total_frames = 0;
avimux->data_size = 4; /* ? */
avimux->datax_size = 0;
avimux->num_frames = 0;
avimux->numx_frames = 0;
avimux->audio_size = 0;
avimux->audio_time = 0;
avimux->avix_start = 0;
avimux->idx_index = 0;
avimux->idx_offset = 0; /* see 10 lines below */
avimux->idx_size = 0;
avimux->idx_count = 0;
avimux->idx = NULL;
/* header */
avimux->avi_hdr.streams = (avimux->video_pad_connected?1:0) + (avimux->audio_pad_connected?1:0);
avimux->is_bigfile = FALSE;
header = gst_avimux_riff_get_avi_header(avimux);
avimux->total_data += GST_BUFFER_SIZE(header);
avimux->idx_offset = avimux->total_data;
gst_pad_push(avimux->srcpad, GST_DATA (header));
avimux->write_header = FALSE;
avimux->restart = FALSE;
}
static void
gst_avimux_stop_file (GstAviMux *avimux)
{
GstEvent *event;
GstBuffer *header;
/* if bigfile, rewrite header, else write indexes */
if (avimux->video_pad_connected)
{
if (avimux->is_bigfile)
{
gst_avimux_bigfile(avimux, TRUE);
avimux->idx_size = 0;
}
else
{
gst_avimux_write_index(avimux);
}
}
/* statistics/total_frames/... */
avimux->avi_hdr.tot_frames = avimux->num_frames;
if (avimux->video_pad_connected) {
avimux->vids_hdr.length = avimux->num_frames;
}
if (avimux->audio_pad_connected) {
avimux->auds_hdr.length = (avimux->audio_time * avimux->auds.rate)/GST_SECOND;
}
/* set rate and everything having to do with that */
avimux->avi_hdr.max_bps = 0;
if (avimux->audio_pad_connected) {
/* calculate bps if needed */
if (!avimux->auds.av_bps) {
if (avimux->audio_time) {
avimux->auds_hdr.rate = (GST_SECOND * avimux->audio_size) / avimux->audio_time;
} else {
GST_ELEMENT_ERROR (avimux, STREAM, MUX,
(_("No or invalid input audio, AVI stream will be corrupt.")), (NULL));
avimux->auds_hdr.rate = 0;
}
avimux->auds.av_bps = avimux->auds_hdr.rate * avimux->auds_hdr.scale;
}
avimux->avi_hdr.max_bps += avimux->auds.av_bps;
}
if (avimux->video_pad_connected) {
avimux->avi_hdr.max_bps += ((avimux->vids.bit_cnt+7)/8) *
(1000000. / avimux->avi_hdr.us_frame) *
avimux->vids.image_size;
}
/* seek and rewrite the header */
header = gst_avimux_riff_get_avi_header(avimux);
event = gst_event_new_seek (GST_FORMAT_BYTES |
GST_SEEK_METHOD_SET, 0);
gst_pad_push(avimux->srcpad, GST_DATA(event));
gst_pad_push(avimux->srcpad, GST_DATA (header));
event = gst_event_new_seek (GST_FORMAT_BYTES |
GST_SEEK_METHOD_SET, avimux->total_data);
gst_pad_push(avimux->srcpad, GST_DATA(event));
avimux->write_header = TRUE;
}
static void
gst_avimux_restart_file (GstAviMux *avimux)
{
GstEvent *event;
gst_avimux_stop_file(avimux);
event = gst_event_new(GST_EVENT_EOS);
gst_pad_push(avimux->srcpad, GST_DATA(event));
gst_avimux_start_file(avimux);
}
/* handle events (search) */
static gboolean
gst_avimux_handle_event (GstPad *pad, GstEvent *event)
{
GstAviMux *avimux;
GstEventType type;
avimux = GST_AVIMUX (gst_pad_get_parent (pad));
type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
switch (type) {
case GST_EVENT_EOS:
/* is this allright? */
if (pad == avimux->videosinkpad) {
avimux->video_pad_eos = TRUE;
} else if (pad == avimux->audiosinkpad) {
avimux->audio_pad_eos = TRUE;
} else {
g_warning("Unknown pad for EOS!");
}
break;
default:
break;
}
return TRUE;
}
/* fill the internal queue for each available pad */
static void
gst_avimux_fill_queue (GstAviMux *avimux)
{
GstBuffer *buffer;
while (!avimux->audio_buffer_queue &&
avimux->audiosinkpad &&
avimux->audio_pad_connected &&
GST_PAD_IS_USABLE(avimux->audiosinkpad) &&
!avimux->audio_pad_eos)
{
buffer = GST_BUFFER (gst_pad_pull(avimux->audiosinkpad));
if (GST_IS_EVENT(buffer)) {
gst_avimux_handle_event(avimux->audiosinkpad, GST_EVENT(buffer));
} else {
avimux->audio_buffer_queue = buffer;
break;
}
}
while (!avimux->video_buffer_queue &&
avimux->videosinkpad &&
avimux->video_pad_connected &&
GST_PAD_IS_USABLE(avimux->videosinkpad) &&
!avimux->video_pad_eos)
{
buffer = GST_BUFFER (gst_pad_pull(avimux->videosinkpad));
if (GST_IS_EVENT(buffer)) {
gst_avimux_handle_event(avimux->videosinkpad, GST_EVENT(buffer));
} else {
avimux->video_buffer_queue = buffer;
break;
}
}
}
/* send extra 'padding' data */
static void
gst_avimux_send_pad_data (GstAviMux *avimux,
gulong num_bytes)
{
GstBuffer *buffer;
buffer = gst_buffer_new();
GST_BUFFER_SIZE(buffer) = num_bytes;
GST_BUFFER_DATA(buffer) = g_malloc(num_bytes);
memset(GST_BUFFER_DATA(buffer), 0, num_bytes);
gst_pad_push(avimux->srcpad, GST_DATA (buffer));
}
/* do audio buffer */
static void
gst_avimux_do_audio_buffer (GstAviMux *avimux)
{
GstBuffer *data = avimux->audio_buffer_queue, *header;
gulong total_size, pad_bytes = 0;
/* write a audio header + index entry */
if (GST_BUFFER_SIZE(data) & 1) {
pad_bytes = 2 - (GST_BUFFER_SIZE(data) & 1);
}
header = gst_avimux_riff_get_audio_header(GST_BUFFER_SIZE(data));
total_size = GST_BUFFER_SIZE(header) + GST_BUFFER_SIZE(data) + pad_bytes;
if (avimux->is_bigfile)
{
avimux->datax_size += total_size;
}
else
{
avimux->data_size += total_size;
avimux->audio_size += GST_BUFFER_SIZE(data);
avimux->audio_time += GST_BUFFER_DURATION(data);
gst_avimux_add_index(avimux, "01wb", 0x0, GST_BUFFER_SIZE(data));
}
gst_pad_push(avimux->srcpad, GST_DATA (header));
gst_pad_push(avimux->srcpad, GST_DATA (data));
if (pad_bytes) {
gst_avimux_send_pad_data(avimux, pad_bytes);
}
avimux->total_data += total_size;
avimux->idx_offset += total_size;
avimux->audio_buffer_queue = NULL;
}
/* do video buffer */
static void
gst_avimux_do_video_buffer (GstAviMux *avimux)
{
GstBuffer *data = avimux->video_buffer_queue, *header;
gulong total_size, pad_bytes = 0;
if (avimux->restart)
gst_avimux_restart_file(avimux);
/* write a video header + index entry */
if ((avimux->is_bigfile?avimux->datax_size:avimux->data_size)+GST_BUFFER_SIZE(data)>1024*1024*2000)
{
if (avimux->enable_large_avi)
gst_avimux_bigfile(avimux, FALSE);
else
gst_avimux_restart_file(avimux);
}
if (GST_BUFFER_SIZE(data) & 1) {
pad_bytes = 2 - (GST_BUFFER_SIZE(data) & 1);
}
header = gst_avimux_riff_get_video_header(GST_BUFFER_SIZE(data));
total_size = GST_BUFFER_SIZE(header) + GST_BUFFER_SIZE(data) + pad_bytes;
avimux->total_frames++;
if (avimux->is_bigfile)
{
avimux->datax_size += total_size;
avimux->numx_frames++;
}
else
{
guint flags = 0x2;
if (GST_BUFFER_FLAG_IS_SET (data, GST_BUFFER_KEY_UNIT))
flags |= 0x10;
avimux->data_size += total_size;
avimux->num_frames++;
gst_avimux_add_index(avimux, "00db", flags, GST_BUFFER_SIZE(data));
}
gst_pad_push(avimux->srcpad, GST_DATA (header));
gst_pad_push(avimux->srcpad, GST_DATA (data));
if (pad_bytes) {
gst_avimux_send_pad_data(avimux, pad_bytes);
}
avimux->total_data += total_size;
avimux->idx_offset += total_size;
avimux->video_buffer_queue = NULL;
}
/* take the oldest buffer in our internal queue and push-it */
static gboolean
gst_avimux_do_one_buffer (GstAviMux *avimux)
{
if (avimux->video_buffer_queue &&
avimux->audio_buffer_queue)
{
if (GST_BUFFER_TIMESTAMP(avimux->video_buffer_queue) <=
GST_BUFFER_TIMESTAMP(avimux->audio_buffer_queue))
gst_avimux_do_video_buffer(avimux);
else
gst_avimux_do_audio_buffer(avimux);
}
else if (avimux->video_buffer_queue ||
avimux->audio_buffer_queue)
{
if (avimux->video_buffer_queue)
gst_avimux_do_video_buffer(avimux);
else
gst_avimux_do_audio_buffer(avimux);
}
else {
/* simply finish off the file and send EOS */
gst_avimux_stop_file(avimux);
gst_pad_push(avimux->srcpad,
GST_DATA(gst_event_new(GST_EVENT_EOS)));
gst_element_set_eos(GST_ELEMENT(avimux));
return FALSE;
}
return TRUE;
}
static void
gst_avimux_loop (GstElement *element)
{
GstAviMux *avimux;
avimux = GST_AVIMUX(element);
/* first fill queue (some elements only set caps when
* flowing data), then write header */
gst_avimux_fill_queue(avimux);
if (avimux->write_header)
gst_avimux_start_file(avimux);
gst_avimux_do_one_buffer(avimux);
}
static void
gst_avimux_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GstAviMux *avimux;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_AVIMUX(object));
avimux = GST_AVIMUX(object);
switch (prop_id)
{
case ARG_BIGFILE:
g_value_set_boolean(value, avimux->enable_large_avi);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_avimux_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GstAviMux *avimux;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_AVIMUX(object));
avimux = GST_AVIMUX(object);
switch (prop_id)
{
case ARG_BIGFILE:
avimux->enable_large_avi = g_value_get_boolean(value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstElementStateReturn
gst_avimux_change_state (GstElement *element)
{
GstAviMux *avimux;
gint transition = GST_STATE_TRANSITION (element);
g_return_val_if_fail(GST_IS_AVIMUX(element), GST_STATE_FAILURE);
avimux = GST_AVIMUX(element);
switch (transition) {
case GST_STATE_PAUSED_TO_PLAYING:
avimux->video_pad_eos = avimux->audio_pad_eos = FALSE;
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
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