blob: 5b3af5e1d0f492e64115d70a6b5179d6660cdebb
| 1 | /* |
| 2 | * Vidvox Hap utility functions |
| 3 | * Copyright (C) 2015 Tom Butterworth <bangnoise@gmail.com> |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * @file |
| 24 | * Hap utilities |
| 25 | */ |
| 26 | #include "hap.h" |
| 27 | |
| 28 | int ff_hap_set_chunk_count(HapContext *ctx, int count, int first_in_frame) |
| 29 | { |
| 30 | int ret = 0; |
| 31 | if (first_in_frame == 1 && ctx->chunk_count != count) { |
| 32 | int ret = av_reallocp_array(&ctx->chunks, count, sizeof(HapChunk)); |
| 33 | if (ret == 0) |
| 34 | ret = av_reallocp_array(&ctx->chunk_results, count, sizeof(int)); |
| 35 | if (ret < 0) { |
| 36 | ctx->chunk_count = 0; |
| 37 | } else { |
| 38 | ctx->chunk_count = count; |
| 39 | } |
| 40 | } else if (ctx->chunk_count != count) { |
| 41 | /* If this is not the first chunk count calculated for a frame and a |
| 42 | * different count has already been encountered, then reject the frame: |
| 43 | * each table in the Decode Instructions Container must describe the |
| 44 | * same number of chunks. */ |
| 45 | ret = AVERROR_INVALIDDATA; |
| 46 | } |
| 47 | return ret; |
| 48 | } |
| 49 | |
| 50 | av_cold void ff_hap_free_context(HapContext *ctx) |
| 51 | { |
| 52 | av_freep(&ctx->tex_buf); |
| 53 | av_freep(&ctx->chunks); |
| 54 | av_freep(&ctx->chunk_results); |
| 55 | } |
| 56 |