From 774e6fc9edecc00eab7a47dacfc9a7b9845b1286 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Wed, 5 Dec 2012 17:17:20 +0200
Subject: [PATCH] libvpxenc: Support forcing keyframes
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Signed-off-by: Martin Storsjö <martin@martin.st>
---
 libavcodec/libvpxenc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index 9774d5aec4a..17b9800f257 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -495,6 +495,7 @@ static int vp8_encode(AVCodecContext *avctx, AVPacket *pkt,
     struct vpx_image *rawimg = NULL;
     int64_t timestamp = 0;
     int res, coded_size;
+    vpx_enc_frame_flags_t flags = 0;
 
     if (frame) {
         rawimg                      = &ctx->rawimg;
@@ -505,10 +506,12 @@ 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;
+        if (frame->pict_type == AV_PICTURE_TYPE_I)
+            flags |= VPX_EFLAG_FORCE_KF;
     }
 
     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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