From cb7f06228658b5d31290f245b8e7a4eba2c6758d Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Sun, 10 Jun 2012 14:15:20 -0700
Subject: [PATCH] libvpxenc: add support for forced key frames

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavcodec/libvpxenc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index b3ec17d1ce2..f9180f0ce96 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -503,6 +503,7 @@ static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
     VP8Context *ctx = avctx->priv_data;
     struct vpx_image *rawimg = NULL;
     int64_t timestamp = 0;
+    long flags = 0;
     int res, coded_size;
 
     if (frame) {
@@ -514,10 +515,11 @@ static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
         rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
         rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
         timestamp                   = frame->pts;
+        flags                       = frame->pict_type == AV_PICTURE_TYPE_I ? VPX_EFLAG_FORCE_KF : 0;
     }
 
     res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
-                           avctx->ticks_per_frame, 0, ctx->deadline);
+                           avctx->ticks_per_frame, flags, ctx->deadline);
     if (res != VPX_CODEC_OK) {
         log_encoder_error(avctx, "Error encoding frame");
         return AVERROR_INVALIDDATA;
-- 
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