mirror of https://github.com/mpv-player/mpv
228 lines
7.2 KiB
C
228 lines
7.2 KiB
C
/*
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This file is part of FreeSDP
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Copyright (C) 2001,2002,2003 Federico Montesino Pouzols <fedemp@suidzer0.org>
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FreeSDP is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* @file common.c
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*
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* @short Implementation of routines common to parse and formatting
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* modules .
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*
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* This file implements the routines that operate over data structures
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* that are used in both the parse and formatting modules.
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**/
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#include "priv.h"
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#include "common.h"
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static void
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safe_free (void *ptr)
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{
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if (ptr)
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free (ptr);
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}
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fsdp_description_t *
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fsdp_description_new (void)
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{
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fsdp_description_t *result = malloc (sizeof (fsdp_description_t));
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result->version = 0;
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result->o_username = result->o_session_id =
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result->o_announcement_version = NULL;
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result->o_network_type = FSDP_NETWORK_TYPE_UNDEFINED;
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result->o_address_type = FSDP_ADDRESS_TYPE_UNDEFINED;
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result->o_address = NULL;
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result->s_name = NULL;
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result->i_information = NULL;
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result->u_uri = NULL;
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result->emails = NULL;
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result->emails_count = 0;
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result->phones = NULL;
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result->phones_count = 0;
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/* At first, there is no session-level definition for these
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parameters */
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result->c_network_type = FSDP_NETWORK_TYPE_UNDEFINED;
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result->c_address_type = FSDP_ADDRESS_TYPE_UNDEFINED;
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result->c_address.address = NULL;
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/* there is no session-level definition for these parameters */
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result->bw_modifiers = NULL;
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result->bw_modifiers_count = 0;
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result->time_periods = NULL;
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result->time_periods_count = 0;
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result->timezone_adj = NULL;
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result->k_encryption_method = FSDP_ENCRYPTION_METHOD_UNDEFINED;
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result->k_encryption_content = NULL;
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/* Default/undefined values for attributes */
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result->a_category = result->a_keywords = result->a_tool = NULL;
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result->a_type = FSDP_SESSION_TYPE_UNDEFINED;
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result->a_sendrecv_mode = FSDP_SENDRECV_UNDEFINED;
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result->a_charset = NULL;
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result->a_sdplangs = result->a_langs = NULL;
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result->a_controls = NULL;
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result->a_range = NULL;
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result->a_rtpmaps = NULL;
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result->a_rtpmaps_count = 0;
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result->a_sdplangs_count = 0;
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result->a_langs_count = 0;
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result->a_controls_count = 0;
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result->unidentified_attributes = NULL;
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result->unidentified_attributes_count = 0;
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result->media_announcements = NULL;
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result->media_announcements_count = 0;
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return result;
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}
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void
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fsdp_description_delete (fsdp_description_t * dsc)
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{
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fsdp_description_recycle (dsc);
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safe_free (dsc);
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}
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void
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fsdp_description_recycle (fsdp_description_t * dsc)
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{
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/* Recursively free all strings and arrays */
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unsigned int i, j;
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if (!dsc)
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return;
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safe_free (dsc->o_username);
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safe_free (dsc->o_session_id);
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safe_free (dsc->o_announcement_version);
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safe_free (dsc->o_address);
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safe_free (dsc->s_name);
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safe_free (dsc->i_information);
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safe_free (dsc->u_uri);
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for (i = 0; i < dsc->emails_count; i++)
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safe_free ((char *) dsc->emails[i]);
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safe_free (dsc->emails);
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for (i = 0; i < dsc->phones_count; i++)
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safe_free ((char *) dsc->phones[i]);
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safe_free (dsc->phones);
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safe_free (dsc->c_address.address);
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for (i = 0; i < dsc->bw_modifiers_count; i++)
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safe_free (dsc->bw_modifiers[i].b_unknown_bw_modt);
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safe_free (dsc->bw_modifiers);
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for (i = 0; i < dsc->time_periods_count; i++)
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{
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for (j = 0; j < dsc->time_periods[i]->repeats_count; j++)
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{
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safe_free (dsc->time_periods[i]->repeats[j]->offsets);
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safe_free (dsc->time_periods[i]->repeats[j]);
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}
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safe_free (dsc->time_periods[i]->repeats);
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safe_free (dsc->time_periods[i]);
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}
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safe_free (dsc->time_periods);
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safe_free (dsc->timezone_adj);
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safe_free (dsc->a_category);
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safe_free (dsc->a_keywords);
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safe_free (dsc->a_tool);
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for (i = 0; i < dsc->a_rtpmaps_count; i++)
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safe_free (dsc->a_rtpmaps[i]);
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safe_free (dsc->a_rtpmaps);
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safe_free (dsc->a_charset);
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for (i = 0; i < dsc->a_sdplangs_count; i++)
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safe_free (dsc->a_sdplangs[i]);
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safe_free (dsc->a_sdplangs);
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for (i = 0; i < dsc->a_langs_count; i++)
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safe_free (dsc->a_langs[i]);
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safe_free (dsc->a_langs);
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for (i = 0; i < dsc->a_controls_count; i++)
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safe_free (dsc->a_controls[i]);
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safe_free (dsc->a_controls);
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safe_free (dsc->a_range);
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for (i = 0; i < dsc->media_announcements_count; i++)
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{
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if (!dsc->media_announcements[i]) continue;
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for (j = 0; j < dsc->media_announcements[i]->formats_count; j++)
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safe_free (dsc->media_announcements[i]->formats[j]);
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safe_free (dsc->media_announcements[i]->formats);
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safe_free (dsc->media_announcements[i]->i_title);
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for (j = 0; j < dsc->media_announcements[i]->bw_modifiers_count; j++)
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{
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if (FSDP_BW_MOD_TYPE_UNKNOWN ==
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dsc->media_announcements[i]->bw_modifiers[j].b_mod_type)
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safe_free (dsc->media_announcements[i]->bw_modifiers[j].
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b_unknown_bw_modt);
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}
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safe_free (dsc->media_announcements[i]->bw_modifiers);
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safe_free (dsc->media_announcements[i]->k_encryption_content);
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for (j = 0; j < dsc->media_announcements[i]->a_rtpmaps_count; j++)
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{
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safe_free (dsc->media_announcements[i]->a_rtpmaps[j]->pt);
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safe_free (dsc->media_announcements[i]->a_rtpmaps[j]->
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encoding_name);
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safe_free (dsc->media_announcements[i]->a_rtpmaps[j]->parameters);
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safe_free (dsc->media_announcements[i]->a_rtpmaps[j]);
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}
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safe_free (dsc->media_announcements[i]->a_rtpmaps);
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for (j = 0; j < dsc->media_announcements[i]->a_sdplangs_count; j++)
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safe_free (dsc->media_announcements[i]->a_sdplangs[j]);
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safe_free (dsc->media_announcements[i]->a_sdplangs);
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for (j = 0; j < dsc->media_announcements[i]->a_langs_count; j++)
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safe_free (dsc->media_announcements[i]->a_langs[j]);
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safe_free (dsc->media_announcements[i]->a_langs);
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for (j = 0; j < dsc->media_announcements[i]->a_controls_count; j++)
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safe_free (dsc->media_announcements[i]->a_controls[j]);
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safe_free (dsc->media_announcements[i]->a_controls);
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for (j = 0; j < dsc->media_announcements[i]->a_fmtps_count; j++)
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safe_free (dsc->media_announcements[i]->a_fmtps[j]);
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safe_free (dsc->media_announcements[i]->a_fmtps);
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for (j = 0;
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j < dsc->media_announcements[i]->unidentified_attributes_count; j++)
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safe_free (dsc->media_announcements[i]->unidentified_attributes[j]);
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safe_free (dsc->media_announcements[i]->unidentified_attributes);
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safe_free (dsc->media_announcements[i]);
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}
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safe_free (dsc->media_announcements);
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/* This prevents the user to make the library crash when incorrectly
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using recycled but not rebuilt descriptions */
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dsc->emails_count = 0;
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dsc->phones_count = 0;
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dsc->bw_modifiers_count = 0;
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dsc->time_periods_count = 0;
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dsc->media_announcements_count = 0;
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}
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