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check for request_channels at codec init
Originally committed as revision 11415 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -312,6 +312,13 @@ static int ac3_decode_init(AVCodecContext *avctx)
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s->mul_bias = 32767.0f;
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}
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/* allow downmixing to stereo or mono */
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if (avctx->channels > 0 && avctx->request_channels > 0 &&
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avctx->request_channels < avctx->channels &&
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avctx->request_channels <= 2) {
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avctx->channels = avctx->request_channels;
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}
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return 0;
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}
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