*/
int ff_find_stream_index(AVFormatContext *s, int id);
+/**
+ * Internal version of av_index_search_timestamp
+ */
+int ff_index_search_timestamp(const AVIndexEntry *entries, int nb_entries,
+ int64_t wanted_timestamp, int flags);
+
+/**
+ * Internal version of av_add_index_entry
+ */
+int ff_add_index_entry(AVIndexEntry **index_entries,
+ int *nb_index_entries,
+ unsigned int *index_entries_allocated_size,
+ int64_t pos, int64_t timestamp, int size, int distance, int flags);
+
#endif /* AVFORMAT_INTERNAL_H */
}
}
-int av_add_index_entry(AVStream *st,
- int64_t pos, int64_t timestamp, int size, int distance, int flags)
+int ff_add_index_entry(AVIndexEntry **index_entries,
+ int *nb_index_entries,
+ unsigned int *index_entries_allocated_size,
+ int64_t pos, int64_t timestamp, int size, int distance, int flags)
{
AVIndexEntry *entries, *ie;
int index;
- if((unsigned)st->nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
+ if((unsigned)*nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
return -1;
- entries = av_fast_realloc(st->index_entries,
- &st->index_entries_allocated_size,
- (st->nb_index_entries + 1) *
+ entries = av_fast_realloc(*index_entries,
+ index_entries_allocated_size,
+ (*nb_index_entries + 1) *
sizeof(AVIndexEntry));
if(!entries)
return -1;
- st->index_entries= entries;
+ *index_entries= entries;
- index= av_index_search_timestamp(st, timestamp, AVSEEK_FLAG_ANY);
+ index= ff_index_search_timestamp(*index_entries, *nb_index_entries, timestamp, AVSEEK_FLAG_ANY);
if(index<0){
- index= st->nb_index_entries++;
+ index= (*nb_index_entries)++;
ie= &entries[index];
assert(index==0 || ie[-1].timestamp < timestamp);
}else{
if(ie->timestamp != timestamp){
if(ie->timestamp <= timestamp)
return -1;
- memmove(entries + index + 1, entries + index, sizeof(AVIndexEntry)*(st->nb_index_entries - index));
- st->nb_index_entries++;
+ memmove(entries + index + 1, entries + index, sizeof(AVIndexEntry)*(*nb_index_entries - index));
+ (*nb_index_entries)++;
}else if(ie->pos == pos && distance < ie->min_distance) //do not reduce the distance
distance= ie->min_distance;
}
return index;
}
-int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp,
- int flags)
+int av_add_index_entry(AVStream *st,
+ int64_t pos, int64_t timestamp, int size, int distance, int flags)
+{
+ return ff_add_index_entry(&st->index_entries, &st->nb_index_entries,
+ &st->index_entries_allocated_size, pos,
+ timestamp, size, distance, flags);
+}
+
+int ff_index_search_timestamp(const AVIndexEntry *entries, int nb_entries,
+ int64_t wanted_timestamp, int flags)
{
- AVIndexEntry *entries= st->index_entries;
- int nb_entries= st->nb_index_entries;
int a, b, m;
int64_t timestamp;
return m;
}
+int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp,
+ int flags)
+{
+ return ff_index_search_timestamp(st->index_entries, st->nb_index_entries,
+ wanted_timestamp, flags);
+}
+
#define DEBUG_SEEK
int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags){