asf: Check return value of more avio_seek calls

[ffmpeg] / libavformat / avformat.h

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 5e73f8dc06dcd722d113177fae93f73328d7d768..4315710e3147efac3e36ecb9657c76def9e1f2f8 100644 (file)
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1232,6 +1232,18 @@ int av_find_stream_info(AVFormatContext *ic);
  */
 int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options);
 
+/**
+ * Find the programs which belong to a given stream.
+ *
+ * @param ic    media file handle
+ * @param last  the last found program, the search will start after this
+ *              program, or from the beginning if it is NULL
+ * @param s     stream index
+ * @return the next program which belongs to s, NULL if no program is found or
+ *         the last program is not among the programs of ic.
+ */
+AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s);
+
 /**
  * Find the "best" stream in the file.
  * The best stream is determined according to various heuristics as the most
@@ -1708,4 +1720,12 @@ int av_match_ext(const char *filename, const char *extensions);
  */
 int avformat_query_codec(AVOutputFormat *ofmt, enum CodecID codec_id, int std_compliance);
 
+/**
+ * Get the AVClass for AVFormatContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avformat_get_class(void);
+
 #endif /* AVFORMAT_AVFORMAT_H */