[FFmpeg-devel] [PATCH] fftools/ffmpeg_mux: distinguish between sync queue and muxer EOF

Anton Khirnov anton at khirnov.net
Thu Feb 9 17:57:22 EET 2023


---
How about something like this?
---
 fftools/ffmpeg_mux.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/fftools/ffmpeg_mux.c b/fftools/ffmpeg_mux.c
index dffc1410c8..cf58051949 100644
--- a/fftools/ffmpeg_mux.c
+++ b/fftools/ffmpeg_mux.c
@@ -159,14 +159,18 @@ fail:
     return ret;
 }
 
-static int sync_queue_process(Muxer *mux, OutputStream *ost, AVPacket *pkt)
+static int sync_queue_process(Muxer *mux, OutputStream *ost, AVPacket *pkt, int *stream_eof)
 {
     OutputFile *of = &mux->of;
 
     if (ost->sq_idx_mux >= 0) {
         int ret = sq_send(mux->sq_mux, ost->sq_idx_mux, SQPKT(pkt));
-        if (ret < 0)
+        if (ret < 0) {
+            if (ret == AVERROR_EOF)
+                *stream_eof = 1;
+
             return ret;
+        }
 
         while (1) {
             ret = sq_receive(mux->sq_mux, -1, SQPKT(mux->sq_pkt));
@@ -208,7 +212,7 @@ static void *muxer_thread(void *arg)
 
     while (1) {
         OutputStream *ost;
-        int stream_idx;
+        int stream_idx, stream_eof = 0;
 
         ret = tq_receive(mux->tq, &stream_idx, pkt);
         if (stream_idx < 0) {
@@ -218,9 +222,9 @@ static void *muxer_thread(void *arg)
         }
 
         ost = of->streams[stream_idx];
-        ret = sync_queue_process(mux, ost, ret < 0 ? NULL : pkt);
+        ret = sync_queue_process(mux, ost, ret < 0 ? NULL : pkt, &stream_eof);
         av_packet_unref(pkt);
-        if (ret == AVERROR_EOF)
+        if (ret == AVERROR_EOF && stream_eof)
             tq_receive_finish(mux->tq, stream_idx);
         else if (ret < 0) {
             av_log(mux, AV_LOG_ERROR, "Error muxing a packet\n");
-- 
2.35.1



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