mirror of https://git.ffmpeg.org/ffmpeg.git
wmadec: prevent null pointer call.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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1da254b849
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7157334c37
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@ -489,6 +489,11 @@ static int wma_decode_block(WMACodecContext *s)
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s->block_len_bits = s->frame_len_bits;
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}
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if (s->frame_len_bits - s->block_len_bits >= s->nb_block_sizes){
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av_log(s->avctx, AV_LOG_ERROR, "block_len_bits not initialized to a valid value\n");
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return -1;
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}
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/* now check if the block length is coherent with the frame length */
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s->block_len = 1 << s->block_len_bits;
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if ((s->block_pos + s->block_len) > s->frame_len){
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