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lavd/dshow: Interpret negative height as bottom-down frame.
Fixes ticket #7436.
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@ -996,6 +996,9 @@ dshow_add_device(AVFormatContext *avctx,
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par->codec_id = AV_CODEC_ID_RAWVIDEO;
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if (bih->biCompression == BI_RGB || bih->biCompression == BI_BITFIELDS) {
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par->bits_per_coded_sample = bih->biBitCount;
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if (par->height < 0) {
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par->height *= -1;
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} else {
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par->extradata = av_malloc(9 + AV_INPUT_BUFFER_PADDING_SIZE);
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if (par->extradata) {
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par->extradata_size = 9;
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@ -1003,6 +1006,7 @@ dshow_add_device(AVFormatContext *avctx,
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}
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}
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}
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}
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} else {
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WAVEFORMATEX *fx = NULL;
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