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authorstuhlo <stuhlo@gmail.com>2021-06-11 12:27:30 +0200
committerTimo Rothenpieler <timo@rothenpieler.org>2021-06-11 16:50:53 +0200
commita501d559050f395f22153a7954b193feb18325e4 (patch)
tree05524b177f867112d67652bd0d18f31ee0551a33
parent94af6414ab74b9785bee89bd0a167c4788d6b598 (diff)
downloadffmpeg-a501d559050f395f22153a7954b193feb18325e4.tar.gz
avcodec/cuviddec: correctly set key_frame with interlaced content
Fixes #9283 This fixes setting of 'key_frame' flag in AVFrame when input h264 packets represents individual fields of interlaced video. In this case, pairs of two consecutive fields represents a single decoded picture and have identical 'CurrPicIdx', however, only the first field is entirely intra-coded and has the flag 'intra_pic_flag' set and the second field was resetting the flag before it was even read in the function 'cuvid_output_frame'. Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
-rw-r--r--libavcodec/cuviddec.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/cuviddec.c b/libavcodec/cuviddec.c
index a5f33e6fc1..c3496259dc 100644
--- a/libavcodec/cuviddec.c
+++ b/libavcodec/cuviddec.c
@@ -336,7 +336,8 @@ static int CUDAAPI cuvid_handle_picture_decode(void *opaque, CUVIDPICPARAMS* pic
av_log(avctx, AV_LOG_TRACE, "pfnDecodePicture\n");
- ctx->key_frame[picparams->CurrPicIdx] = picparams->intra_pic_flag;
+ if(picparams->intra_pic_flag)
+ ctx->key_frame[picparams->CurrPicIdx] = picparams->intra_pic_flag;
ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidDecodePicture(ctx->cudecoder, picparams));
if (ctx->internal_error < 0)
@@ -593,6 +594,8 @@ static int cuvid_output_frame(AVCodecContext *avctx, AVFrame *frame)
}
frame->key_frame = ctx->key_frame[parsed_frame.dispinfo.picture_index];
+ ctx->key_frame[parsed_frame.dispinfo.picture_index] = 0;
+
frame->width = avctx->width;
frame->height = avctx->height;
if (avctx->pkt_timebase.num && avctx->pkt_timebase.den)