[FFmpeg-devel] [PATCH 2/4] avcodec/nvdec: correctly set output frame size

Timo Rothenpieler timo at rothenpieler.org
Sat Nov 11 17:21:37 EET 2017


---
 libavcodec/nvdec.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/libavcodec/nvdec.c b/libavcodec/nvdec.c
index db338accfa..780c2e67cf 100644
--- a/libavcodec/nvdec.c
+++ b/libavcodec/nvdec.c
@@ -232,8 +232,8 @@ int ff_nvdec_decode_init(AVCodecContext *avctx, unsigned int dpb_size)
         frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
 
         frames_ctx->format            = AV_PIX_FMT_CUDA;
-        frames_ctx->width             = avctx->coded_width;
-        frames_ctx->height            = avctx->coded_height;
+        frames_ctx->width             = (avctx->width + 1) & ~1;
+        frames_ctx->height            = (avctx->height + 1) & ~1;
         frames_ctx->sw_format         = AV_PIX_FMT_NV12;
         frames_ctx->sw_format         = sw_desc->comp[0].depth > 8 ?
                                         AV_PIX_FMT_P010 : AV_PIX_FMT_NV12;
@@ -247,10 +247,13 @@ int ff_nvdec_decode_init(AVCodecContext *avctx, unsigned int dpb_size)
     }
     frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
 
-    params.ulWidth             = avctx->coded_width;
-    params.ulHeight            = avctx->coded_height;
-    params.ulTargetWidth       = avctx->coded_width;
-    params.ulTargetHeight      = avctx->coded_height;
+    params.ulWidth  = avctx->coded_width;
+    params.ulHeight = avctx->coded_height;
+
+    params.display_area.top = params.display_area.left   = 0;
+    params.ulTargetWidth    = params.display_area.right  = frames_ctx->width;
+    params.ulTargetHeight   = params.display_area.bottom = frames_ctx->height;
+
     params.bitDepthMinus8      = sw_desc->comp[0].depth - 8;
     params.OutputFormat        = params.bitDepthMinus8 ?
                                  cudaVideoSurfaceFormat_P016 : cudaVideoSurfaceFormat_NV12;
-- 
2.14.2



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