From e10f5bd05cec8fe59bb43fd28c4c2a092ca5f440 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 4 Apr 2013 04:01:12 +0200 Subject: [PATCH] avformat: Add a mechanism to allow demuxers to detect byte based seeking. Signed-off-by: Michael Niedermayer --- libavformat/avformat.h | 8 ++++++++ libavformat/utils.c | 2 ++ 2 files changed, 10 insertions(+) diff --git a/libavformat/avformat.h b/libavformat/avformat.h index 57603031a4..80d693a113 100644 --- a/libavformat/avformat.h +++ b/libavformat/avformat.h @@ -1257,6 +1257,14 @@ typedef struct AVFormatContext { */ #define RAW_PACKET_BUFFER_SIZE 2500000 int raw_packet_buffer_remaining_size; + + /** + * IO repositioned flag. + * This is set by avformat when the underlaying IO context read pointer + * is repositioned, for example when doing byte based seeking. + * Demuxers can use the flag to detect such changes. + */ + int io_repositioned; } AVFormatContext; /** diff --git a/libavformat/utils.c b/libavformat/utils.c index 001b0e3179..c5d6d322c3 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -2018,6 +2018,8 @@ static int seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos, in avio_seek(s->pb, pos, SEEK_SET); + s->io_repositioned = 1; + return 0; }