Imported Debian version 2.5.2~trusty

[deb_ffmpeg.git] / ffmpeg / libavcodec / hevc_ps.c

diff --git a/ffmpeg/libavcodec/hevc_ps.c b/ffmpeg/libavcodec/hevc_ps.c
index 4e1c56163d1983859cf03585fefad07abee1efee..11e6eb61322ce5510dda3f3aeba6490f79b8c918 100644 (file)
--- a/ffmpeg/libavcodec/hevc_ps.c
+++ b/ffmpeg/libavcodec/hevc_ps.c
@@ -951,6 +951,11 @@ int ff_hevc_decode_nal_sps(HEVCContext *s)
     sps->long_term_ref_pics_present_flag = get_bits1(gb);
     if (sps->long_term_ref_pics_present_flag) {
         sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
+        if (sps->num_long_term_ref_pics_sps > 31U) {
+            av_log(0, AV_LOG_ERROR, "num_long_term_ref_pics_sps %d is out of range.\n",
+                   sps->num_long_term_ref_pics_sps);
+            goto err;
+        }
         for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
             sps->lt_ref_pic_poc_lsb_sps[i]       = get_bits(gb, sps->log2_max_poc_lsb);
             sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
@@ -1025,10 +1030,8 @@ int ff_hevc_decode_nal_sps(HEVCContext *s)
         }
         av_log(s->avctx, AV_LOG_WARNING,
                "Displaying the whole video surface.\n");
-        sps->pic_conf_win.left_offset   =
-        sps->pic_conf_win.right_offset  =
-        sps->pic_conf_win.top_offset    =
-        sps->pic_conf_win.bottom_offset = 0;
+        memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
+        memset(&sps->output_window, 0, sizeof(sps->output_window));
         sps->output_width               = sps->width;
         sps->output_height              = sps->height;
     }
@@ -1252,6 +1255,14 @@ int ff_hevc_decode_nal_pps(HEVCContext *s)
     if (pps->cu_qp_delta_enabled_flag)
         pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
 
+    if (pps->diff_cu_qp_delta_depth < 0 ||
+        pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
+        av_log(s->avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
+               pps->diff_cu_qp_delta_depth);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
     pps->cb_qp_offset = get_se_golomb(gb);
     if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
         av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
@@ -1375,7 +1386,8 @@ int ff_hevc_decode_nal_pps(HEVCContext *s)
         int pps_range_extensions_flag = get_bits1(gb);
         /* int pps_extension_7bits = */ get_bits(gb, 7);
         if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) {
-            pps_range_extensions(s, pps, sps);
+            if ((ret = pps_range_extensions(s, pps, sps)) < 0)
+                goto err;
         }
     }