[FFmpeg-devel] [PATCH] avfilter/decode: do not treat discarded frames as eof when draining

[Muhammad Faiz]

Fix fate failures:
  make fate-mov THREADS=32

Signed-off-by: Muhammad Faiz <mfcc64 at gmail.com>
---
 libavcodec/decode.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/libavcodec/decode.c b/libavcodec/decode.c
index edfae55..6ec423b 100644
--- a/libavcodec/decode.c
+++ b/libavcodec/decode.c
@@ -557,9 +557,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
         avci->showed_multi_packet_warning = 1;
     }
 
-    if (!got_frame)
-        av_frame_unref(frame);
-
     if (ret >= 0 && avctx->codec->type == AVMEDIA_TYPE_VIDEO && !(avctx->flags & AV_CODEC_FLAG_TRUNCATED))
         ret = pkt->size;
 
@@ -568,8 +565,9 @@ FF_ENABLE_DEPRECATION_WARNINGS
         avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
 #endif
 
-    /* do not stop draining when got_frame != 0 or ret < 0 */
-    if (avctx->internal->draining && !got_frame) {
+    /* do not stop draining when frame->buf[0] != NULL or ret < 0 */
+    /* at this point, got_frame == 0 when discarding frame */
+    if (avctx->internal->draining && !frame->buf[0]) {
         if (ret < 0) {
             /* prevent infinite loop if a decoder wrongly always return error on draining */
             /* reasonable nb_errors_max = maximum b frames + thread count */
@@ -603,7 +601,9 @@ FF_ENABLE_DEPRECATION_WARNINGS
         avci->last_pkt_props->dts = AV_NOPTS_VALUE;
     }
 
-    if (got_frame)
+    if (!got_frame)
+        av_frame_unref(frame);
+    else
         av_assert0(frame->buf[0]);
 
     return ret < 0 ? ret : 0;
-- 
2.9.3