[FFmpeg-devel] [PATCH] avcodec/openh264enc.c: generate IDR frame in response to I frame pict_type

[Valery Kot]

libx264 encoder uses AVFrame.pict_type (if provided by user) to use this
frame as key frame.

For openh264 encoder this functionality is missing, pict_type simply being
ignored.

Attached patch fixes it.

Valery
-------------- next part --------------
From f95943165c91dac13a644365f775aff3dd9edb11 Mon Sep 17 00:00:00 2001
From: vkot <valery.kot at 4cinsights.com>
Date: Mon, 5 Mar 2018 13:51:51 +0100
Subject: [PATCH 3/3] avcodec/openh264enc.c: generate IDR frame in response to
 I frame pict_type

---
 libavcodec/libopenh264enc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/libopenh264enc.c b/libavcodec/libopenh264enc.c
index fdadb101f5..12e9ad49ed 100644
--- a/libavcodec/libopenh264enc.c
+++ b/libavcodec/libopenh264enc.c
@@ -245,6 +245,10 @@ static int svc_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
     }
     sp.iPicWidth  = avctx->width;
     sp.iPicHeight = avctx->height;
+    
+    if (frame->pict_type==AV_PICTURE_TYPE_I) {
+        (*s->encoder)->ForceIntraFrame(s->encoder, true);
+    }
 
     encoded = (*s->encoder)->EncodeFrame(s->encoder, &sp, &fbi);
     if (encoded != cmResultSuccess) {
-- 
2.15.1.windows.2