+static int wav_parse_fmt_tag(AVFormatContext *s, int64_t size, AVStream **st)
+{
+ AVIOContext *pb = s->pb;
+ int ret;
+
+ /* parse fmt header */
+ *st = avformat_new_stream(s, NULL);
+ if (!*st)
+ return AVERROR(ENOMEM);
+
+ ret = ff_get_wav_header(pb, (*st)->codec, size);
+ if (ret < 0)
+ return ret;
+ (*st)->need_parsing = AVSTREAM_PARSE_FULL;
+
+ avpriv_set_pts_info(*st, 64, 1, (*st)->codec->sample_rate);
+
+ return 0;
+}
+
+static inline int wav_parse_bext_string(AVFormatContext *s, const char *key,
+ int length)
+{
+ char temp[257];
+ int ret;
+
+ av_assert0(length <= sizeof(temp));
+ if ((ret = avio_read(s->pb, temp, length)) < 0)
+ return ret;
+
+ temp[length] = 0;
+
+ if (strlen(temp))
+ return av_dict_set(&s->metadata, key, temp, 0);
+
+ return 0;
+}
+
+static int wav_parse_bext_tag(AVFormatContext *s, int64_t size)
+{
+ char temp[131], *coding_history;
+ int ret, x;
+ uint64_t time_reference;
+ int64_t umid_parts[8], umid_mask = 0;
+
+ if ((ret = wav_parse_bext_string(s, "description", 256)) < 0 ||
+ (ret = wav_parse_bext_string(s, "originator", 32)) < 0 ||
+ (ret = wav_parse_bext_string(s, "originator_reference", 32)) < 0 ||
+ (ret = wav_parse_bext_string(s, "origination_date", 10)) < 0 ||
+ (ret = wav_parse_bext_string(s, "origination_time", 8)) < 0)
+ return ret;
+
+ time_reference = avio_rl64(s->pb);
+ snprintf(temp, sizeof(temp), "%"PRIu64, time_reference);
+ if ((ret = av_dict_set(&s->metadata, "time_reference", temp, 0)) < 0)
+ return ret;
+
+ /* check if version is >= 1, in which case an UMID may be present */
+ if (avio_rl16(s->pb) >= 1) {
+ for (x = 0; x < 8; x++)
+ umid_mask |= umid_parts[x] = avio_rb64(s->pb);
+
+ if (umid_mask) {
+ /* the string formatting below is per SMPTE 330M-2004 Annex C */
+ if (umid_parts[4] == 0 && umid_parts[5] == 0 && umid_parts[6] == 0 && umid_parts[7] == 0) {
+ /* basic UMID */
+ snprintf(temp, sizeof(temp), "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
+ umid_parts[0], umid_parts[1], umid_parts[2], umid_parts[3]);
+ } else {
+ /* extended UMID */
+ snprintf(temp, sizeof(temp), "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64
+ "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
+ umid_parts[0], umid_parts[1], umid_parts[2], umid_parts[3],
+ umid_parts[4], umid_parts[5], umid_parts[6], umid_parts[7]);
+ }
+
+ if ((ret = av_dict_set(&s->metadata, "umid", temp, 0)) < 0)
+ return ret;
+ }
+
+ avio_skip(s->pb, 190);
+ } else
+ avio_skip(s->pb, 254);
+
+ if (size > 602) {
+ /* CodingHistory present */
+ size -= 602;
+
+ if (!(coding_history = av_malloc(size+1)))
+ return AVERROR(ENOMEM);
+
+ if ((ret = avio_read(s->pb, coding_history, size)) < 0)
+ return ret;
+
+ coding_history[size] = 0;
+ if ((ret = av_dict_set(&s->metadata, "coding_history", coding_history,
+ AV_DICT_DONT_STRDUP_VAL)) < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static const AVMetadataConv wav_metadata_conv[] = {
+ {"description", "comment" },
+ {"originator", "encoded_by" },
+ {"origination_date", "date" },
+ {"origination_time", "creation_time"},
+ {0},
+};
+