diff options
Diffstat (limited to 'libavfilter/framesync.c')
| -rw-r--r-- | libavfilter/framesync.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libavfilter/framesync.c b/libavfilter/framesync.c index 7510550d8e..ee91e4cf68 100644 --- a/libavfilter/framesync.c +++ b/libavfilter/framesync.c @@ -42,6 +42,13 @@ static const AVOption framesync_options[] = { { "pass", "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS }, .flags = FLAGS, "eof_action" }, { "shortest", "force termination when the shortest input terminates", OFFSET(opt_shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS }, { "repeatlast", "extend last frame of secondary streams beyond EOF", OFFSET(opt_repeatlast), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS }, + { "ts_sync_mode", "How strictly to sync streams based on secondary input timestamps", + OFFSET(opt_ts_sync_mode), AV_OPT_TYPE_INT, { .i64 = TS_DEFAULT }, + TS_DEFAULT, TS_NEAREST, .flags = FLAGS, "ts_sync_mode" }, + { "default", "Frame from secondary input with the nearest lower or equal timestamp to the primary input frame", + 0, AV_OPT_TYPE_CONST, { .i64 = TS_DEFAULT }, .flags = FLAGS, "ts_sync_mode" }, + { "nearest", "Frame from secondary input with the absolute nearest timestamp to the primary input frame", + 0, AV_OPT_TYPE_CONST, { .i64 = TS_NEAREST }, .flags = FLAGS, "ts_sync_mode" }, { NULL } }; static const AVClass framesync_class = { @@ -110,6 +117,14 @@ static void framesync_sync_level_update(FFFrameSync *fs) av_assert0(level <= fs->sync_level); if (level < fs->sync_level) av_log(fs, AV_LOG_VERBOSE, "Sync level %u\n", level); + if (fs->opt_ts_sync_mode > TS_DEFAULT) { + for (i = 0; i < fs->nb_in; i++) { + if (fs->in[i].sync < level) + fs->in[i].ts_mode = fs->opt_ts_sync_mode; + else + fs->in[i].ts_mode = TS_DEFAULT; + } + } if (level) fs->sync_level = level; else @@ -187,6 +202,10 @@ static int framesync_advance(FFFrameSync *fs) } for (i = 0; i < fs->nb_in; i++) { if (fs->in[i].pts_next == pts || + (fs->in[i].ts_mode == TS_NEAREST && + fs->in[i].have_next && + fs->in[i].pts_next != INT64_MAX && fs->in[i].pts != AV_NOPTS_VALUE && + fs->in[i].pts_next - pts < pts - fs->in[i].pts) || (fs->in[i].before == EXT_INFINITY && fs->in[i].state == STATE_BOF)) { av_frame_free(&fs->in[i].frame); |