[Cin] Tweaked few profiles for better quality by default

[Andrew Randrianasulu]

Just added cin_quality=1 to mp4.qt,mjpeg.qt, new profile mjpeg.avi and old flv.
Files are much bigger, sure, but at least this doesn't show horrible blocking artefacts by default ....

Writing interlaced avi still doesn't work :( even if ffmpeg support making such avi:
https://trac.ffmpeg.org/ticket/6383

I also modified my patch to mimic that ffmpeg does more closely:

ffmpeg:

      if (ost->top_field_first == 0) {
            enc_ctx->field_order = AV_FIELD_BB;
        } else if (ost->top_field_first == 1) {
            enc_ctx->field_order = AV_FIELD_TT;
        }

       if (frame) {
            if (enc_ctx->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
                ost->top_field_first >= 0)
                frame->top_field_first = !!ost->top_field_first;

            if (frame->interlaced_frame) {
                if (enc_ctx->codec->id == AV_CODEC_ID_MJPEG)
                    enc_ctx->field_order = frame->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
                else
                    enc_ctx->field_order = frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
            } else
                enc_ctx->field_order = AV_FIELD_PROGRESSIVE;
        }

me:

			switch (asset->interlace_mode)	{		
			case ILACE_MODE_TOP_FIRST: 
			if (ctx->codec->id == AV_CODEC_ID_MJPEG)
			av_dict_set(&sopts, "field_order", "tt", 0); 
			else
			av_dict_set(&sopts, "field_order", "tb", 0); 
			if (ctx->codec_id == AV_CODEC_ID_MPEG4 || ctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) 
			av_dict_set(&sopts, "flags", "+ilme+ildct", 0);
			break;
			case ILACE_MODE_BOTTOM_FIRST: 
			if (ctx->codec->id == AV_CODEC_ID_MJPEG)
			av_dict_set(&sopts, "field_order", "bb", 0); 
			else
			av_dict_set(&sopts, "field_order", "bt", 0); 
			if (ctx->codec_id == AV_CODEC_ID_MPEG4 || ctx->codec_id == AV_CODEC_ID_MPEG2VIDEO)
			av_dict_set(&sopts, "flags", "+ilme+ildct", 0);
			break;
			case ILACE_MODE_NOTINTERLACED: av_dict_set(&sopts, "field_order", "progressive", 0); break;
			}

file attached or  at https://cloud.mail.ru/public/sVbF/4u6SQjJdn

Still not sure about interlaced mpeg2/mpeg4 - field order might be wrong ....
I'll try to rework this section of patch one more time :(
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