diff options
Diffstat (limited to 'libavcodec/truemotion1.c')
| -rw-r--r-- | libavcodec/truemotion1.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/libavcodec/truemotion1.c b/libavcodec/truemotion1.c index 01d4694e14..8af92f501a 100644 --- a/libavcodec/truemotion1.c +++ b/libavcodec/truemotion1.c @@ -2,20 +2,20 @@ * Duck TrueMotion 1.0 Decoder * Copyright (C) 2003 Alex Beregszaszi & Mike Melanson * - * 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 */ @@ -317,7 +317,7 @@ static int truemotion1_decode_header(TrueMotion1Context *s) const uint8_t *sel_vector_table; header.header_size = ((s->buf[0] >> 5) | (s->buf[0] << 3)) & 0x7f; - if (s->buf[0] < 0x10) + if (s->buf[0] < 0x10 || header.header_size >= s->size) { av_log(s->avctx, AV_LOG_ERROR, "invalid header size (%d)\n", s->buf[0]); return AVERROR_INVALIDDATA; @@ -468,6 +468,7 @@ static av_cold int truemotion1_decode_init(AVCodecContext *avctx) // else // avctx->pix_fmt = AV_PIX_FMT_RGB555; + avcodec_get_frame_defaults(&s->frame); s->frame.data[0] = NULL; /* there is a vertical predictor for each pixel in a line; each vertical @@ -513,6 +514,10 @@ hres,vres,i,i%vres (0 < i < 4) } #define APPLY_C_PREDICTOR() \ + if(index > 1023){\ + av_log(s->avctx, AV_LOG_ERROR, " index %d went out of bounds\n", index); \ + return; \ + }\ predictor_pair = s->c_predictor_table[index]; \ horiz_pred += (predictor_pair >> 1); \ if (predictor_pair & 1) { \ @@ -530,6 +535,10 @@ hres,vres,i,i%vres (0 < i < 4) index++; #define APPLY_C_PREDICTOR_24() \ + if(index > 1023){\ + av_log(s->avctx, AV_LOG_ERROR, " index %d went out of bounds\n", index); \ + return; \ + }\ predictor_pair = s->c_predictor_table[index]; \ horiz_pred += (predictor_pair >> 1); \ if (predictor_pair & 1) { \ @@ -548,6 +557,10 @@ hres,vres,i,i%vres (0 < i < 4) #define APPLY_Y_PREDICTOR() \ + if(index > 1023){\ + av_log(s->avctx, AV_LOG_ERROR, " index %d went out of bounds\n", index); \ + return; \ + }\ predictor_pair = s->y_predictor_table[index]; \ horiz_pred += (predictor_pair >> 1); \ if (predictor_pair & 1) { \ @@ -565,6 +578,10 @@ hres,vres,i,i%vres (0 < i < 4) index++; #define APPLY_Y_PREDICTOR_24() \ + if(index > 1023){\ + av_log(s->avctx, AV_LOG_ERROR, " index %d went out of bounds\n", index); \ + return; \ + }\ predictor_pair = s->y_predictor_table[index]; \ horiz_pred += (predictor_pair >> 1); \ if (predictor_pair & 1) { \ |