/*
  * Vidvox Hap utility functions
  * Copyright (C) 2015 Tom Butterworth <bangnoise@gmail.com>
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
  * @file
  * Hap utilities
  */
 #include "hap.h"
 
 int ff_hap_set_chunk_count(HapContext *ctx, int count, int first_in_frame)
 {
     int ret = 0;
     if (first_in_frame == 1 && ctx->chunk_count != count) {
         int ret = av_reallocp_array(&ctx->chunks, count, sizeof(HapChunk));
         if (ret == 0)
             ret = av_reallocp_array(&ctx->chunk_results, count, sizeof(int));
         if (ret < 0) {
             ctx->chunk_count = 0;
         } else {
             ctx->chunk_count = count;
         }
     } else if (ctx->chunk_count != count) {
         /* If this is not the first chunk count calculated for a frame and a
          * different count has already been encountered, then reject the frame:
          * each table in the Decode Instructions Container must describe the
          * same number of chunks. */
         ret = AVERROR_INVALIDDATA;
     }
     return ret;
 }
 
 av_cold void ff_hap_free_context(HapContext *ctx)
 {
     av_freep(&ctx->tex_buf);
     av_freep(&ctx->chunks);
     av_freep(&ctx->chunk_results);
 }