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- Bug fix on RTYPE (rounding type) not being honoured by H.263+ decoder.
Originally committed as revision 312 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -1447,7 +1447,10 @@ int h263_decode_picture_header(MpegEncContext *s)
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if (s->pict_type != I_TYPE &&
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s->pict_type != P_TYPE)
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return -1;
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skip_bits(&s->gb, 7);
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skip_bits(&s->gb, 2);
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s->no_rounding = get_bits1(&s->gb);
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//fprintf(stderr, "\nRTYPE: %d", s->no_rounding);
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skip_bits(&s->gb, 4);
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/* Get the picture dimensions */
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if (ufep) {
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@ -95,17 +95,17 @@ static void dct_unquantize_h263_mmx(MpegEncContext *s,
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else
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block[0] = block[0] * s->c_dc_scale;
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}
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for(i=1; i<8; i++) {
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level = block[i];
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if (level) {
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if (level < 0) {
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level = level * qmul - qadd;
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} else {
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level = level * qmul + qadd;
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}
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block[i] = level;
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}
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}
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for(i=1; i<8; i++) {
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level = block[i];
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if (level) {
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if (level < 0) {
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level = level * qmul - qadd;
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} else {
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level = level * qmul + qadd;
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}
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block[i] = level;
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}
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}
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nCoeffs=64;
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} else {
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i = 0;
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