diff options
Diffstat (limited to 'libavformat/avio_internal.h')
| -rw-r--r-- | libavformat/avio_internal.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libavformat/avio_internal.h b/libavformat/avio_internal.h index 279c7f60ff..3abb619b8a 100644 --- a/libavformat/avio_internal.h +++ b/libavformat/avio_internal.h @@ -47,4 +47,18 @@ static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s) avio_wl32(pb, MKTAG(s[0], s[1], s[2], s[3])); } +/** + * Rewind the AVIOContext using the specified buffer containing the first buf_size bytes of the file. + * Used after probing to avoid seeking. + * Joins buf and s->buffer, taking any overlap into consideration. + * @note s->buffer must overlap with buf or they can't be joined and the function fails + * + * @param s The read-only AVIOContext to rewind + * @param buf The probe buffer containing the first buf_size bytes of the file + * @param buf_size The size of buf + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code in case of failure + */ +int ffio_rewind_with_probe_data(AVIOContext *s, unsigned char *buf, int buf_size); + #endif // AVFORMAT_AVIO_INTERNAL_H |