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lavc/encode: fix frame_number double-counted
Encoder frame_number may be double-counted if some frames are cached and then flushed. Take qsv encoder (some frames are cached firsty for asynchronism) as example, ./ffmpeg -loglevel verbose -hwaccel qsv -c:v h264_qsv -i in.mp4 -vframes 100 -c:v h264_qsv out.mp4 frame_number passed to encoder is double-counted and larger than the accurate value. Libx264 encoding with B frames can also reproduce it. Signed-off-by: Zhong Li <zhong.li@intel.com>
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@ -234,8 +234,8 @@ int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
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if (ret >= 0)
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avpkt->data = avpkt->buf->data;
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}
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avctx->frame_number++;
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if (frame)
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avctx->frame_number++;
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}
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if (ret < 0 || !*got_packet_ptr) {
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@ -329,7 +329,8 @@ int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
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avpkt->data = avpkt->buf->data;
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}
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avctx->frame_number++;
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if (frame)
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avctx->frame_number++;
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}
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if (ret < 0 || !*got_packet_ptr)
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