File ffmpeg-avcodec-libdav1d-don-t-repeatedly-parse-... of Package A_tw-ffmpeg-4

File ffmpeg-avcodec-libdav1d-don-t-repeatedly-parse-the-same-seq.patch of Package A_tw-ffmpeg-4

commit e204846ec16c1ab34c7f3a681734cf5190433018
Author: James Almer <jamrial@gmail.com>
Date:   Fri Sep 3 13:50:32 2021 -0300

avcodec/libdav1d: fix compilation after recent libdav1d API changes

They were done in preparation for an upcoming 1.0 release.
    Keep supporting previous releases for the time being.

Reviewed-by: BBB
    Signed-off-by: James Almer <jamrial@gmail.com>

--- a/libavcodec/libdav1d.c
+++ b/libavcodec/libdav1d.c
@@ -202,6 +202,9 @@
     Libdav1dContext *dav1d = c->priv_data;
     Dav1dData *data = &dav1d->data;
     Dav1dPicture pic = { 0 }, *p = &pic;
+#if FF_DAV1D_VERSION_AT_LEAST(5,1)
+    enum Dav1dEventFlags event_flags = 0;
+#endif
     int res;

if (!data->sz) {
@@ -280,6 +283,11 @@
     frame->linesize[1] = p->stride[1];
     frame->linesize[2] = p->stride[1];

+#if FF_DAV1D_VERSION_AT_LEAST(5,1)
+    dav1d_get_event_flags(dav1d->c, &event_flags);
+    if (c->pix_fmt == AV_PIX_FMT_NONE ||
+        event_flags & DAV1D_EVENT_FLAG_NEW_SEQUENCE)
+#endif
     c->profile = p->seq_hdr->profile;
     c->level = ((p->seq_hdr->operating_points[0].major_level - 2) << 2)
                | p->seq_hdr->operating_points[0].minor_level;