diff --git a/record/ffemu.c b/record/ffemu.c
index b5d0057e9f..fce4fa97f5 100644
--- a/record/ffemu.c
+++ b/record/ffemu.c
@@ -79,14 +79,13 @@ static bool init_audio(struct audio_info *audio, struct ffemu_params *param)
    if (!codec)
       return false;
 
-   audio->codec = avcodec_alloc_context();
-   avcodec_get_context_defaults(audio->codec);
+   audio->codec = avcodec_alloc_context3(codec);
 
    audio->codec->sample_rate = param->samplerate;
    audio->codec->time_base = (AVRational) { 1, param->samplerate };
    audio->codec->channels = param->channels;
    audio->codec->sample_fmt = AV_SAMPLE_FMT_S16;
-   if (avcodec_open(audio->codec, codec) != 0)
+   if (avcodec_open2(audio->codec, codec, NULL) != 0)
       return false;
 
    audio->buffer = av_malloc(audio->codec->frame_size * param->channels * sizeof(int16_t));
@@ -119,14 +118,15 @@ static bool init_video(struct video_info *video, struct ffemu_params *param)
       video->pix_size = sizeof(uint32_t);
    }
 
-   video->codec = avcodec_alloc_context();
+   video->codec = avcodec_alloc_context3(codec);
    video->codec->width = param->out_width;
    video->codec->height = param->out_height;
    video->codec->time_base = (AVRational) {param->fps.den, param->fps.num};
    video->codec->pix_fmt = PIX_FMT_RGB32;
    video->codec->sample_aspect_ratio = av_d2q(param->aspect_ratio * param->out_height / param->out_width, 255);
+   video->codec->thread_count = 2;
 
-   if (avcodec_open(video->codec, codec) != 0)
+   if (avcodec_open2(video->codec, codec, NULL) != 0)
       return false;
 
    // Allocate a big buffer :p ffmpeg API doesn't seem to give us some clues how big this buffer should be.
@@ -173,7 +173,7 @@ static bool init_muxer(ffemu_t *handle)
       handle->audio.codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
    handle->muxer.astream = stream;
 
-   if (av_write_header(ctx) < 0)
+   if (avformat_write_header(ctx, NULL) < 0)
       return false;
 
    handle->muxer.ctx = ctx;
@@ -244,7 +244,6 @@ static void deinit_thread_buf(ffemu_t *handle)
 
 ffemu_t *ffemu_new(const struct ffemu_params *params)
 {
-   avcodec_init();
    av_register_all();
 
    ffemu_t *handle = calloc(1, sizeof(*handle));