diff options
Diffstat (limited to 'libavformat/hevc.c')
| -rw-r--r-- | libavformat/hevc.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/libavformat/hevc.c b/libavformat/hevc.c index 4d43b6a083..16b06b4bf4 100644 --- a/libavformat/hevc.c +++ b/libavformat/hevc.c @@ -1,20 +1,20 @@ /* * Copyright (c) 2014 Tim Walker <tdskywalker@gmail.com> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -189,7 +189,7 @@ static void skip_sub_layer_hrd_parameters(GetBitContext *gb, } } -static void skip_hrd_parameters(GetBitContext *gb, uint8_t cprms_present_flag, +static int skip_hrd_parameters(GetBitContext *gb, uint8_t cprms_present_flag, unsigned int max_sub_layers_minus1) { unsigned int i; @@ -246,8 +246,11 @@ static void skip_hrd_parameters(GetBitContext *gb, uint8_t cprms_present_flag, else low_delay_hrd_flag = get_bits1(gb); - if (!low_delay_hrd_flag) + if (!low_delay_hrd_flag) { cpb_cnt_minus1 = get_ue_golomb_long(gb); + if (cpb_cnt_minus1 > 31) + return AVERROR_INVALIDDATA; + } if (nal_hrd_parameters_present_flag) skip_sub_layer_hrd_parameters(gb, cpb_cnt_minus1, @@ -257,6 +260,8 @@ static void skip_hrd_parameters(GetBitContext *gb, uint8_t cprms_present_flag, skip_sub_layer_hrd_parameters(gb, cpb_cnt_minus1, sub_pic_hrd_params_present_flag); } + + return 0; } static void skip_timing_info(GetBitContext *gb) @@ -457,6 +462,9 @@ static int parse_rps(GetBitContext *gb, unsigned int rps_idx, unsigned int num_negative_pics = get_ue_golomb_long(gb); unsigned int num_positive_pics = get_ue_golomb_long(gb); + if ((num_positive_pics + (uint64_t)num_negative_pics) * 2 > get_bits_left(gb)) + return AVERROR_INVALIDDATA; + num_delta_pocs[rps_idx] = num_negative_pics + num_positive_pics; for (i = 0; i < num_negative_pics; i++) { @@ -799,7 +807,7 @@ static void hvcc_init(HEVCDecoderConfigurationRecord *hvcc) /* * Initialize this field with an invalid value which can be used to detect - * whether we didn't see any VUI (in wich case it should be reset to zero). + * whether we didn't see any VUI (in which case it should be reset to zero). */ hvcc->min_spatial_segmentation_idc = MAX_SPATIAL_SEGMENTATION + 1; } |