summaryrefslogtreecommitdiff
path: root/libavformat
diff options
context:
space:
mode:
authoremcodem <emcodem@ffastrans.com>2021-01-21 18:59:45 +0100
committerStephen Hutchinson <qyot27@gmail.com>2021-03-11 14:21:30 -0500
commit8b74458d9303454fcbe9869a00df0c08461dfd4c (patch)
tree1e8fb75c248204af5ada09077e8f2fa6b657469e /libavformat
parent4c40686ee25f2aae29a121fe9e52c5db41007b36 (diff)
avisynth: populate field order
Fixes Trac ticket #8757 Signed-off-by: Stephen Hutchinson <qyot27@gmail.com>
Diffstat (limited to 'libavformat')
-rw-r--r--libavformat/avisynth.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/libavformat/avisynth.c b/libavformat/avisynth.c
index 5756aea0b6..64fb6cc98f 100644
--- a/libavformat/avisynth.c
+++ b/libavformat/avisynth.c
@@ -243,6 +243,23 @@ static int avisynth_create_stream_video(AVFormatContext *s, AVStream *st)
st->nb_frames = avs->vi->num_frames;
avpriv_set_pts_info(st, 32, avs->vi->fps_denominator, avs->vi->fps_numerator);
+ av_log(s, AV_LOG_TRACE, "avs_is_field_based: %d\n", avs_is_field_based(avs->vi));
+ av_log(s, AV_LOG_TRACE, "avs_is_parity_known: %d\n", avs_is_parity_known(avs->vi));
+
+ /* The following typically only works when assumetff (-bff) and
+ * assumefieldbased is used in-script. Additional
+ * logic using GetParity() could deliver more accurate results
+ * but also decodes a frame which we want to avoid. */
+ st->codecpar->field_order = AV_FIELD_UNKNOWN;
+ if (avs_is_field_based(avs->vi)) {
+ if (avs_is_tff(avs->vi)) {
+ st->codecpar->field_order = AV_FIELD_TT;
+ }
+ else if (avs_is_bff(avs->vi)) {
+ st->codecpar->field_order = AV_FIELD_BB;
+ }
+ }
+
switch (avs->vi->pixel_type) {
/* 10~16-bit YUV pix_fmts (AviSynth+) */
case AVS_CS_YUV444P10: