diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c index ad32cc9c1f..3f45428dd6 100644 --- a/libavcodec/vp3.c +++ b/libavcodec/vp3.c @@ -1788,29 +1788,34 @@ static av_cold int vp3_decode_init(AVCodecContext *avctx) for (i = 0; i < 16; i++) { /* DC histograms */ - init_vlc(&s->dc_vlc[i], 5, 32, + if (init_vlc(&s->dc_vlc[i], 5, 32, &s->huffman_table[i][0][1], 4, 2, - &s->huffman_table[i][0][0], 4, 2, 0); + &s->huffman_table[i][0][0], 4, 2, 0) < 0) + goto vlc_fail; /* group 1 AC histograms */ - init_vlc(&s->ac_vlc_1[i], 5, 32, + if (init_vlc(&s->ac_vlc_1[i], 5, 32, &s->huffman_table[i+16][0][1], 4, 2, - &s->huffman_table[i+16][0][0], 4, 2, 0); + &s->huffman_table[i+16][0][0], 4, 2, 0) < 0) + goto vlc_fail; /* group 2 AC histograms */ - init_vlc(&s->ac_vlc_2[i], 5, 32, + if (init_vlc(&s->ac_vlc_2[i], 5, 32, &s->huffman_table[i+16*2][0][1], 4, 2, - &s->huffman_table[i+16*2][0][0], 4, 2, 0); + &s->huffman_table[i+16*2][0][0], 4, 2, 0) < 0) + goto vlc_fail; /* group 3 AC histograms */ - init_vlc(&s->ac_vlc_3[i], 5, 32, + if (init_vlc(&s->ac_vlc_3[i], 5, 32, &s->huffman_table[i+16*3][0][1], 4, 2, - &s->huffman_table[i+16*3][0][0], 4, 2, 0); + &s->huffman_table[i+16*3][0][0], 4, 2, 0) < 0) + goto vlc_fail; /* group 4 AC histograms */ - init_vlc(&s->ac_vlc_4[i], 5, 32, + if (init_vlc(&s->ac_vlc_4[i], 5, 32, &s->huffman_table[i+16*4][0][1], 4, 2, - &s->huffman_table[i+16*4][0][0], 4, 2, 0); + &s->huffman_table[i+16*4][0][0], 4, 2, 0) < 0) + goto vlc_fail; } } @@ -1844,6 +1849,10 @@ static av_cold int vp3_decode_init(AVCodecContext *avctx) } return 0; + +vlc_fail: + av_log(avctx, AV_LOG_FATAL, "Invalid huffman table\n"); + return -1; } /*