early-access version 1432

externals/ffmpeg/libavformat/mov_esds.c

@@ -0,0 +1,44 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avformat.h"
+#include "avio.h"
+#include "isom.h"
+
+int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
+{
+    AVStream *st;
+    int tag, ret = 0;
+
+    if (fc->nb_streams < 1)
+        return 0;
+    st = fc->streams[fc->nb_streams-1];
+
+    avio_rb32(pb); /* version + flags */
+    ff_mp4_read_descr(fc, pb, &tag);
+    if (tag == MP4ESDescrTag) {
+        ff_mp4_parse_es_descr(pb, NULL);
+    } else
+        avio_rb16(pb); /* ID */
+
+    ff_mp4_read_descr(fc, pb, &tag);
+    if (tag == MP4DecConfigDescrTag)
+        ret = ff_mp4_read_dec_config_descr(fc, st, pb);
+
+    return ret;
+}