siff: Return more meaningful error values

[ffmpeg] / libavformat / nutdec.c

diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c
index 8ec67ae355b54466242e2071ea62117841fefd67..69057e933afbfb63d8c168e5132d600d5cdae7b6 100644 (file)
--- a/libavformat/nutdec.c
+++ b/libavformat/nutdec.c
@@ -399,7 +399,6 @@ static int decode_stream_header(NUTContext *nut)
     GET_V(stc->msb_pts_shift, tmp < 16);
     stc->max_pts_distance = ffio_read_varlen(bc);
     GET_V(stc->decode_delay, tmp < 1000); // sanity limit, raise this if Moore's law is true
-    st->codec->has_b_frames = stc->decode_delay;
     ffio_read_varlen(bc); // stream flags
 
     GET_V(st->codec->extradata_size, tmp < (1 << 30));
@@ -461,9 +460,11 @@ static int decode_info_header(NUTContext *nut)
     int64_t value, end;
     char name[256], str_value[1024], type_str[256];
     const char *type;
+    int *event_flags        = NULL;
     AVChapter *chapter      = NULL;
     AVStream *st            = NULL;
     AVDictionary **metadata = NULL;
+    int metadata_flag       = 0;
 
     end  = get_packetheader(nut, bc, 1, INFO_STARTCODE);
     end += avio_tell(bc);
@@ -484,8 +485,13 @@ static int decode_info_header(NUTContext *nut)
     } else if (stream_id_plus1) {
         st       = s->streams[stream_id_plus1 - 1];
         metadata = &st->metadata;
-    } else
+        event_flags = &st->event_flags;
+        metadata_flag = AVSTREAM_EVENT_FLAG_METADATA_UPDATED;
+    } else {
         metadata = &s->metadata;
+        event_flags = &s->event_flags;
+        metadata_flag = AVFMT_EVENT_FLAG_METADATA_UPDATED;
+    }
 
     for (i = 0; i < count; i++) {
         get_str(bc, name, sizeof(name));
@@ -521,8 +527,11 @@ static int decode_info_header(NUTContext *nut)
                 continue;
             }
             if (metadata && av_strcasecmp(name, "Uses") &&
-                av_strcasecmp(name, "Depends") && av_strcasecmp(name, "Replaces"))
+                av_strcasecmp(name, "Depends") && av_strcasecmp(name, "Replaces")) {
+                if (event_flags)
+                    *event_flags |= metadata_flag;
                 av_dict_set(metadata, name, str_value, 0);
+            }
         }
     }
 
@@ -813,7 +822,7 @@ static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code)
 {
     AVFormatContext *s = nut->avf;
     AVIOContext *bc    = s->pb;
-    int size, stream_id, discard;
+    int size, stream_id, discard, ret;
     int64_t pts, last_IP_pts;
     StreamContext *stc;
     uint8_t header_idx;
@@ -838,7 +847,9 @@ static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code)
         return 1;
     }
 
-    av_new_packet(pkt, size + nut->header_len[header_idx]);
+    ret = av_new_packet(pkt, size + nut->header_len[header_idx]);
+    if (ret < 0)
+        return ret;
     memcpy(pkt->data, nut->header[header_idx], nut->header_len[header_idx]);
     pkt->pos = avio_tell(bc); // FIXME
     avio_read(bc, pkt->data + nut->header_len[header_idx], size);