From a150b2e3a099fd539ecc6664050fd20617ce223c Mon Sep 17 00:00:00 2001
From: Tobias Rapp <t.rapp@noa-archive.com>
Date: Thu, 26 Apr 2018 14:23:02 +0200
Subject: [PATCH] fftools/ffmpeg: properly initialize output stream field order
Fixes stream field order written by avformat_write_header when "top"
option is specified on the command-line.
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
---
fftools/ffmpeg.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 5dc198f933d..5a19a09d9a6 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -3389,6 +3389,12 @@ static int init_output_stream_encode(OutputStream *ost)
enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
}
+ if (ost->top_field_first == 0) {
+ enc_ctx->field_order = AV_FIELD_BB;
+ } else if (ost->top_field_first == 1) {
+ enc_ctx->field_order = AV_FIELD_TT;
+ }
+
if (ost->forced_keyframes) {
if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
--
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