[FFmpeg-devel] [PATCH 3/3] avcodec/nvdec: Increase frame pool size to help deinterlacing

Philip Langdale philipl at overt.org
Fri Oct 26 18:56:06 EEST 2018


With the cuda yadif filter in use, the number of mapped decoder
frames could increase by two, as the filter holds on to additional
frames.

Signed-off-by: Philip Langdale <philipl at overt.org>
---
 libavcodec/nvdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/nvdec.c b/libavcodec/nvdec.c
index 4dd6b1acf3..8e91c36084 100644
--- a/libavcodec/nvdec.c
+++ b/libavcodec/nvdec.c
@@ -601,7 +601,7 @@ int ff_nvdec_frame_params(AVCodecContext *avctx,
     frames_ctx->format            = AV_PIX_FMT_CUDA;
     frames_ctx->width             = (avctx->coded_width + 1) & ~1;
     frames_ctx->height            = (avctx->coded_height + 1) & ~1;
-    frames_ctx->initial_pool_size = dpb_size;
+    frames_ctx->initial_pool_size = dpb_size + 2;
 
     frames_ctx->free = nvdec_free_dummy;
     frames_ctx->pool = av_buffer_pool_init(0, nvdec_alloc_dummy);
-- 
2.19.1



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