On date Tuesday 2025-04-22 10:24:01 +0530, Gyan Doshi wrote: > On 2025-04-21 11:59 pm, Stefano Sabatini wrote: > > On date Tuesday 2025-04-15 16:09:56 +0530, Gyan Doshi wrote: > > > Utility function to report seekability features for a given input. > > > > > > Useful for ffprobe and to extend seek possibilities in fftools. > > > --- > > > v2: > > > made constants more descriptive > > > add exception for rtsp false negative seekability > > > > > > doc/APIchanges | 3 +++ > > > libavformat/avformat.h | 22 ++++++++++++++++++ > > > libavformat/seek.c | 53 ++++++++++++++++++++++++++++++++++++++++++ > > > libavformat/version.h | 2 +- > > > 4 files changed, 79 insertions(+), 1 deletion(-) > > > > > > diff --git a/doc/APIchanges b/doc/APIchanges > > > index 65bf5a9419..879f56b572 100644 > > > --- a/doc/APIchanges > > > +++ b/doc/APIchanges > > > @@ -2,6 +2,9 @@ The last version increases of all libraries were on > > > 2025-03-28 > > > API changes, most recent first: > > > +2025-04-xx - xxxxxxxxxx - lavf 62.1.100 - avformat.h > > > + Add avformat_query_seekable(). > > > + > > > 2025-04-07 - 19e9a203b7 - lavu 60.01.100 - dict.h > > > Add AV_DICT_DEDUP. > > > diff --git a/libavformat/avformat.h b/libavformat/avformat.h > > > index 498c3020a5..f9da5e9e79 100644 > > > --- a/libavformat/avformat.h > > > +++ b/libavformat/avformat.h > > > @@ -2338,6 +2338,28 @@ int av_seek_frame(AVFormatContext *s, int > > > stream_index, int64_t timestamp, > > > */ > > > int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t > > > min_ts, int64_t ts, int64_t max_ts, int flags); > > > +#define AVSEEKABLE_IO_NORMAL 0x00000001 ///< I/O is seekable like > > > a local file > > > +#define AVSEEKABLE_IO_PROTOCOL 0x00000002 ///< I/O seek is through > > > protocol request via avio_seek_time > > > +#define AVSEEKABLE_VIA_DEMUXER 0x00000004 ///< demuxer has a seek > > > function > > > +#define AVSEEKABLE_VIA_PKTSCAN 0x00000008 ///< seek is performed by > > > consuming and scanning packet timestamps > > > +#define AVSEEKABLE_BY_TIME 0x00000100 ///< seek target can be a > > > timestamp > > > +#define AVSEEKABLE_BY_BYTE 0x00000200 ///< seek target can be in > > > bytes > > > +#define AVSEEKABLE_BY_FRAME 0x00000400 ///< seek target can be a > > > frame index > > > +#define AVSEEKABLE_PROP_PTS 0x00010000 ///< seek target timestamp > > > is expected to be PTS > > > +#define AVSEEKABLE_PROP_FAST 0x00020000 ///< demuxer allows fast > > > but inaccurate seeking
> > > +#define AVSEEKABLE_PROP_FWDONLY 0x00040000 ///< set seek will be > > > equal or forward of specified seek point > > Not sure I get this, can you clarify/expand? > > The framework does not seek to an earlier KF, e.g. if either avio is not > AVIO_SEEKABLE_NORMAL or the index does not correctly mark keyframes. then a > seek to 12s will return frames from 12s and decoding will start from next KF > encountered. Thanks for the clarification. This is my take to integrate this comment into the doxy (also it's probably best to avoid contractions to improve mnemonics): #define AVSEEKABLE_PROP_FORWARDONLY 0x00040000 ///< seek result position will be equal or forward of the specified seek point _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
