diff --git a/libavformat/avformat.h b/libavformat/avformat.h index 734ae54cac..26d9bbafbc 100644 --- a/libavformat/avformat.h +++ b/libavformat/avformat.h @@ -485,6 +485,9 @@ typedef struct AVProbeData { The user or muxer can override this through AVFormatContext.avoid_negative_ts */ +#define AVFMT_SEEK_NOSTREAMS 0x80000 /**< Stream index ignored by seek, + or some streams fail to seek + */ #define AVFMT_SEEK_TO_PTS 0x4000000 /**< Seeking is based on PTS */ @@ -653,8 +656,8 @@ typedef struct AVInputFormat { /** * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, - * AVFMT_NOTIMESTAMPS, AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, - * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS. + * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS, + * AVFMT_SEEK_NOSTREAMS */ int flags; diff --git a/libavformat/dv.c b/libavformat/dv.c index eb44e0acb6..b23759dd86 100644 --- a/libavformat/dv.c +++ b/libavformat/dv.c @@ -632,6 +632,7 @@ static int dv_probe(const AVProbeData *p) AVInputFormat ff_dv_demuxer = { .name = "dv", .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"), + .flags = AVFMT_SEEK_NOSTREAMS, .priv_data_size = sizeof(RawDVContext), .read_probe = dv_probe, .read_header = dv_read_header, diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index cba2b3d1f8..8427b2c421 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -4059,6 +4059,7 @@ static const AVClass webm_dash_class = { AVInputFormat ff_matroska_demuxer = { .name = "matroska,webm", .long_name = NULL_IF_CONFIG_SMALL("Matroska / WebM"), + .flags = AVFMT_SEEK_NOSTREAMS, .extensions = "mkv,mk3d,mka,mks", .priv_data_size = sizeof(MatroskaDemuxContext), .read_probe = matroska_probe, @@ -4072,6 +4073,7 @@ AVInputFormat ff_matroska_demuxer = { AVInputFormat ff_webm_dash_manifest_demuxer = { .name = "webm_dash_manifest", .long_name = NULL_IF_CONFIG_SMALL("WebM DASH Manifest"), + .flags = AVFMT_SEEK_NOSTREAMS, .priv_data_size = sizeof(MatroskaDemuxContext), .read_header = webm_dash_manifest_read_header, .read_packet = webm_dash_manifest_read_packet, diff --git a/libavformat/utils.c b/libavformat/utils.c index a63d71b0f4..fe6608ade2 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -2472,6 +2472,13 @@ static int seek_frame_internal(AVFormatContext *s, int stream_index, return seek_frame_byte(s, stream_index, timestamp, flags); } + if (stream_index != -1 && (s->iformat->flags & AVFMT_SEEK_NOSTREAMS)) { + timestamp = av_rescale_q(timestamp, + s->streams[stream_index]->time_base, + AV_TIME_BASE_Q); + stream_index = -1; + } + if (stream_index < 0) { stream_index = av_find_default_stream_index(s); if (stream_index < 0)