Merge pull request gpac#2888 from DenizUgur/prevent-encoder-reconfig

Preventing FFmpeg encoder from unnecessary reconfiguring

src/filters/ff_enc.c

@@ -112,6 +112,7 @@ typedef struct _gf_ffenc_ctx
 
 	GF_BitStream *sdbs;
 
+	GF_FilterPacket *reconfig_from_pck;
 	Bool reconfig_pending;
 	Bool infmt_negotiate;
 	Bool remap_ts;
@@ -496,6 +497,16 @@ static GF_Err ffenc_process_video(GF_Filter *filter, struct _gf_ffenc_ctx *ctx)
 		force_intra = 2;
 	}
 
+	//don't repeat encoder reconfiguration if we already forced one
+	if (force_intra == 2) {
+		if (ctx->reconfig_from_pck == pck) {
+			force_intra = 1;
+			ctx->reconfig_from_pck = NULL;
+		} else {
+			ctx->reconfig_from_pck = pck;
+		}
+	}
+
 	//check if we need to force a closed gop
 	if (pck && (ctx->fintra.den && (ctx->fintra.num>0)) && !ctx->force_reconfig) {
 		u64 cts = ffenc_get_cts(ctx, pck);