From: yu.dongliang <18588496441@163.com>
Date: Mon, 10 Apr 2023 10:27:51 +0000 (+0800)
Subject: h264
X-Git-Url: http://baseworks.info/?a=commitdiff_plain;h=d8cc0f019917a10091e2434594430f3bde13056c;p=simplay.git

h264
---

diff --git a/simp_ffmpeg_output.c b/simp_ffmpeg_output.c
index 7f23298..f21e1fe 100644
--- a/simp_ffmpeg_output.c
+++ b/simp_ffmpeg_output.c
@@ -27,14 +27,18 @@ static int _video_init(simp_ffmpeg_t* priv)
 	priv->vcodec_ctx->height       = 1080;
 	priv->vcodec_ctx->time_base    = (AVRational){1, 25};
 	priv->vcodec_ctx->gop_size     = 30;
-	priv->vcodec_ctx->max_b_frames = 2;
+	priv->vcodec_ctx->max_b_frames = 1;
 	priv->vcodec_ctx->pix_fmt      = AV_PIX_FMT_YUV420P;
-	priv->vcodec_ctx->sample_aspect_ratio = (AVRational){1, 1};
 	s->time_base                   = priv->vcodec_ctx->time_base;
 
 	if (priv->fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
 		priv->vcodec_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
 
+	if (c->id == AV_CODEC_ID_H264) {
+		av_opt_set(priv->vcodec_ctx->priv_data, "preset", "ultrafast", 0);
+		av_opt_set(priv->vcodec_ctx->priv_data, "tune", "zerolatency", 0);
+	}
+
 	int ret = avcodec_open2(priv->vcodec_ctx, c, NULL);
 	if (ret < 0) {
 		scf_loge("avcodec_open2 error, ret: %d, %s\n", ret, av_err2str(ret));