+#if CONFIG_DTS_DEMUXER
+#define DCA_MARKER_14B_BE 0x1FFFE800
+#define DCA_MARKER_14B_LE 0xFF1F00E8
+#define DCA_MARKER_RAW_BE 0x7FFE8001
+#define DCA_MARKER_RAW_LE 0xFE7F0180
+static int dts_probe(AVProbeData *p)
+{
+ const uint8_t *buf, *bufp;
+ uint32_t state = -1;
+
+ buf = p->buf;
+
+ for(; buf < (p->buf+p->buf_size)-2; buf+=2) {
+ bufp = buf;
+ state = (state << 16) | bytestream_get_be16(&bufp);
+
+ /* regular bitstream */
+ if (state == DCA_MARKER_RAW_BE || state == DCA_MARKER_RAW_LE)
+ return AVPROBE_SCORE_MAX/2+1;
+
+ /* 14 bits big-endian bitstream */
+ if (state == DCA_MARKER_14B_BE)
+ if ((bytestream_get_be16(&bufp) & 0xFFF0) == 0x07F0)
+ return AVPROBE_SCORE_MAX/2+1;
+
+ /* 14 bits little-endian bitstream */
+ if (state == DCA_MARKER_14B_LE)
+ if ((bytestream_get_be16(&bufp) & 0xF0FF) == 0xF007)
+ return AVPROBE_SCORE_MAX/2+1;
+ }
+
+ return 0;
+}
+#endif
+
+#if CONFIG_DIRAC_DEMUXER
+static int dirac_probe(AVProbeData *p)
+{
+ if (AV_RL32(p->buf) == MKTAG('B', 'B', 'C', 'D'))
+ return AVPROBE_SCORE_MAX;
+ else
+ return 0;
+}
+#endif
+
+#if CONFIG_DNXHD_DEMUXER
+static int dnxhd_probe(AVProbeData *p)
+{
+ static const uint8_t header[] = {0x00,0x00,0x02,0x80,0x01};
+ if (!memcmp(p->buf, header, 5))
+ return AVPROBE_SCORE_MAX;
+ else
+ return 0;
+}
+#endif
+
+#if CONFIG_AC3_DEMUXER || CONFIG_EAC3_DEMUXER
+static int ac3_eac3_probe(AVProbeData *p, enum CodecID expected_codec_id)