[FFmpeg-devel] [PATCH 1/2] lavc/qsvdec: return 0 if more data is required

From: "Xiang, Haihao" <haihao.xiang-at-intel.com@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Haihao Xiang <haihao.xiang@intel.com>
Subject: [FFmpeg-devel] [PATCH 1/2] lavc/qsvdec: return 0 if more data is required
Date: Mon, 27 Nov 2023 14:01:50 +0800
Message-ID: <20231127060151.2435971-1-haihao.xiang@intel.com> (raw)

From: Haihao Xiang <haihao.xiang@intel.com>

The type of qsv decoders is FF_CODEC_CB_TYPE_DECODE which must not
return AVERROR(EAGAIN). commit 42b20c9 added an assertion to check the
returned value.

Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
---
 libavcodec/qsvdec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/qsvdec.c b/libavcodec/qsvdec.c
index da700f25e9..b501964089 100644
--- a/libavcodec/qsvdec.c
+++ b/libavcodec/qsvdec.c
@@ -1076,6 +1076,9 @@ static int qsv_decode_frame(AVCodecContext *avctx, AVFrame *frame,
 
         ret = qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->buffer_pkt);
         if (ret < 0){
+            if (ret == AVERROR(EAGAIN))
+                ret = 0;
+
             /* Drop buffer_pkt when failed to decode the packet. Otherwise,
                the decoder will keep decoding the failure packet. */
             av_packet_unref(&s->buffer_pkt);
-- 
2.34.1

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