Merge commit '4baba6c813b7a1f27370e20fb1a87b05fcb39208'

* commit '4baba6c813b7a1f27370e20fb1a87b05fcb39208':
  h264_parser: Fix POC parsing for the case where MMCO_RESET is present.

Conflicts:
	libavcodec/h264.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 50 insertions, 37 deletions

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index ccad9b9ff3..6d7ac58b75 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -2602,7 +2602,7 @@ void ff_h264_hl_decode_mb(H264Context *h)
         hl_decode_mb_simple_8(h);
 }
 
-static int pred_weight_table(H264Context *h)
+int ff_pred_weight_table(H264Context *h)
 {
     int list, i;
     int luma_def, chroma_def;
@@ -3310,6 +3310,49 @@ static int h264_slice_header_init(H264Context *h, int reinit)
     return 0;
 }
 
+int ff_set_ref_count(H264Context *h)
+{
+    int num_ref_idx_active_override_flag;
+
+    // set defaults, might be overridden a few lines later
+    h->ref_count[0] = h->pps.ref_count[0];
+    h->ref_count[1] = h->pps.ref_count[1];
+
+    if (h->slice_type_nos != AV_PICTURE_TYPE_I) {
+        unsigned max[2];
+        max[0] = max[1] = h->picture_structure == PICT_FRAME ? 15 : 31;
+
+        if (h->slice_type_nos == AV_PICTURE_TYPE_B)
+            h->direct_spatial_mv_pred = get_bits1(&h->gb);
+        num_ref_idx_active_override_flag = get_bits1(&h->gb);
+
+        if (num_ref_idx_active_override_flag) {
+            h->ref_count[0] = get_ue_golomb(&h->gb) + 1;
+            if (h->slice_type_nos == AV_PICTURE_TYPE_B) {
+                h->ref_count[1] = get_ue_golomb(&h->gb) + 1;
+            } else
+                // full range is spec-ok in this case, even for frames
+                h->ref_count[1] = 1;
+        }
+
+        if (h->ref_count[0]-1 > max[0] || h->ref_count[1]-1 > max[1]){
+            av_log(h->avctx, AV_LOG_ERROR, "reference overflow %u > %u or %u > %u\n", h->ref_count[0]-1, max[0], h->ref_count[1]-1, max[1]);
+            h->ref_count[0] = h->ref_count[1] = 0;
+            return AVERROR_INVALIDDATA;
+        }
+
+        if (h->slice_type_nos == AV_PICTURE_TYPE_B)
+            h->list_count = 2;
+        else
+            h->list_count = 1;
+    } else {
+        h->list_count   = 0;
+        h->ref_count[0] = h->ref_count[1] = 0;
+    }
+
+    return 0;
+}
+
 /**
  * Decode a slice header.
  * This will also call ff_MPV_common_init() and frame_start() as needed.
@@ -3324,7 +3367,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
 {
     unsigned int first_mb_in_slice;
     unsigned int pps_id;
-    int num_ref_idx_active_override_flag, ret;
+    int ret;
     unsigned int slice_type, tmp, i, j;
     int last_pic_structure, last_pic_droppable;
     int must_reinit;
@@ -3777,45 +3820,15 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
     if (h->pps.redundant_pic_cnt_present)
         h->redundant_pic_count = get_ue_golomb(&h->gb);
 
-    // set defaults, might be overridden a few lines later
-    h->ref_count[0] = h->pps.ref_count[0];
-    h->ref_count[1] = h->pps.ref_count[1];
-
-    if (h->slice_type_nos != AV_PICTURE_TYPE_I) {
-        unsigned max[2];
-        max[0] = max[1] = h->picture_structure == PICT_FRAME ? 15 : 31;
-
-        if (h->slice_type_nos == AV_PICTURE_TYPE_B)
-            h->direct_spatial_mv_pred = get_bits1(&h->gb);
-        num_ref_idx_active_override_flag = get_bits1(&h->gb);
-
-        if (num_ref_idx_active_override_flag) {
-            h->ref_count[0] = get_ue_golomb(&h->gb) + 1;
-            if (h->slice_type_nos == AV_PICTURE_TYPE_B) {
-                h->ref_count[1] = get_ue_golomb(&h->gb) + 1;
-            } else
-                // full range is spec-ok in this case, even for frames
-                h->ref_count[1] = 1;
-        }
-
-        if (h->ref_count[0]-1 > max[0] || h->ref_count[1]-1 > max[1]){
-            av_log(h->avctx, AV_LOG_ERROR, "reference overflow %u > %u or %u > %u\n", h->ref_count[0]-1, max[0], h->ref_count[1]-1, max[1]);
-            h->ref_count[0] = h->ref_count[1] = 0;
-            return AVERROR_INVALIDDATA;
-        }
+    ret = ff_set_ref_count(h);
+    if (ret < 0)
+        return ret;
 
-        if (h->slice_type_nos == AV_PICTURE_TYPE_B)
-            h->list_count = 2;
-        else
-            h->list_count = 1;
-    } else {
-        h->list_count   = 0;
-        h->ref_count[0] = h->ref_count[1] = 0;
-    }
     if (slice_type != AV_PICTURE_TYPE_I &&
         (h0->current_slice == 0 ||
          slice_type != h0->last_slice_type ||
          memcmp(h0->last_ref_count, h0->ref_count, sizeof(h0->ref_count)))) {
+
         ff_h264_fill_default_ref_list(h);
     }
 
@@ -3830,7 +3843,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
     if ((h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P) ||
         (h->pps.weighted_bipred_idc == 1 &&
          h->slice_type_nos == AV_PICTURE_TYPE_B))
-        pred_weight_table(h);
+        ff_pred_weight_table(h);
     else if (h->pps.weighted_bipred_idc == 2 &&
              h->slice_type_nos == AV_PICTURE_TYPE_B) {
         implicit_weight_table(h, -1);