fftools/ffmpeg, ffmpeg_opt: Allocate (In|Out)putStream.pkt early

Avoids checks lateron in the hot path.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index c46a9343e1..7aff43d917 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -888,6 +888,10 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
             exit_program(1);
         }
 
+        ist->pkt = av_packet_alloc();
+        if (!ist->pkt)
+            exit_program(1);
+
         if (o->bitexact)
             ist->dec_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
 
@@ -1516,6 +1520,10 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
         exit_program(1);
     }
 
+    ost->pkt = av_packet_alloc();
+    if (!ost->pkt)
+        exit_program(1);
+
     if (ost->enc) {
         AVIOContext *s = NULL;
         char *buf = NULL, *arg = NULL, *preset = NULL;